Eltako FSS12-12V DC User manual

Wireless energy meter transmitter module
for connecting to the SO interface of many
two-phase energy meter and three-phase
energy meter. Only 0.5 watt standby loss.
With load shedding relay 1 NO contact po-
tential free 4A/250V and with exchangeable
antenna. If required, a wireless antenna
FA250 or FAG55E- can be connected.
Modular device for DIN-EN 60715 TH35 rail
mounting.
2 modules = 36 mm wide, 58 mm deep
The energy meter transmitter module
FSS12 evaluates the signals of the S0 inter-
face of an electricity meter and sends
wireless telegrams with the consumption
and the meter reading to the Eltako wire-
less building for evaluation with the Pro-
fessional Smart Home Controller. On
three-phase energy meters, the data sent
includes normal rate (HT) or off-peak (NT)
energy tariff data, provided the E1/E2 ter-
minals on the three-phase energy meter
are connected to E1/E2 on the FSS12.
From production week 42/2012 also with
adjustable pulse rate.
2 modules wide switching power supply unit
SNT12-12V DC with 12W or 24W. If the relay
of the FSS12 is switched on, 0.6 watts are
required.
The setting and display screen is subdivided
into 3  elds:
 Field 1:
The normal display is the unit of the meter
reading currently displayed in Field 3.
This alternates every 4 seconds with eit-
her kilowatt hours kWh (KWH in display) or
megawatt hours MWh (MWH in display).
The display in Field 1 is supplemented by a
+ sign after the reading to indicate that the
off-peak tariff rate is applied to E1/E2.
 Field 2:
Instantaneous values of energy con-
sumption (active power) in watt (W) or
kilowatt (kW). The left-pointing arrow in
Field 1 indicates an automatic switchover
from 0 to 99W to 0.1 to 65kW.
 Field 3:
The meter reading is the normal display.
Every 4 seconds the display alternates
between 3 whole numbers and 1 decimal
point (from 0.1 to 999.9kWh) and 1 or max
3 whole numbers (from 0 to 999MWh). At
freely chosen pulse rates whose last digit
is not 0, the meter reading is displayed
without decimal place in increments of
1 kWh.
Press the left button MODE to access Sett-
ing mode. Press the right button SET to
browse through the setting options, enter or
edit settings as required and  nally con rm
by pressing MODE.
1. HT  ashes to indicate normal rate meter
reading. Con rm by pressing MODE again
and MWH  ashes. SET changes the meter
reading from 0 to 999 in Field 3. Press SET
brie y to increment by 1; hold down to in-
crement rapidly. Release and press again
to change direction. Con rm by pressing
MODE even if nothing was entered.
2. KWH  ashes and SET changes the meter
reading from 0.1 to 999.9 in Field 3, as be-
fore with MWH. Also con rm the correct
entry by pressing MODE.
3. NT  ashes and the off-peak meter read-
ing may be displayed as described under
HT above.
4. S0  ashes and after con rming with
MODE, the number of S0 pulses (pulse
rate) in box 3 of the energy meter are en-
tered per kWh. This will be provided by
the energy meter imprint. 0010, 0100,
0200, 0500, 0800, 1000 or 2000 are set-
table with SET. If the MODE and SET keys
are pressed mutually, S0 +  ashes on the
display and the impulse rate can be
chosen freely with SET. MODE con rms
the entry.
5. LRN  ashes and after con rming by pres-
sing MODE, a wireless teach-in telegram
is transmitted by pressing SET. If a smart
metering display is already installed, it is
used to teach-in the transmitter ID, provid-
ed the receiver was set to LRN shortly
before. To transmit further wireless
teach-in telegrams, con rm the  ashing
LRN again by pressing MODE and transmit
by pressing SET.
6. PSW  ashes and after con rming by
pressing MODE, press SET to set the pow-
er threshold from 0 to 60kW for the load
shedding relay NO contact and a corres-
ponding wireless telegram. The left poin-
ting arrow in Field 1 indicates kW. Con rm
by pressing MODE.
In the setting 0.0, the relay contact closes
after switching over from normal rate HT to
off-peak NT. At the same time, a wireless
telegram EIN (ON) is transmitted. When the
device is switched over from NT to HT, AUS
(OFF) is transmitted and the relay contact
opens.
With any other value from 1 to 60, the load
shedding relay switches on when the set
threshold value is overshot and switches off
when the set threshold value is undershot
at a hysteresis of 25%. At the same time, a
wireless telegram EIN or AUS is transmitted.
Lock settings: Press MODE and SET to-
gether brie y and lock the  ashing LCK in
Field 1 by pressing SET. To unlock, press
MODE and SET together for 2 seconds and
con rm the  ashing UNL in Field 1 by press-
ing SET.
Wireless telegrams: Maximum every 130
seconds a performance telegram will be
sent and the display will be updated. Other-
wise a telegram will be sent within 20 se-
conds if the power changed by at least 10%.
A switchover from HT to NT is transmitted
immediately in the same way as a meter
reading change. A full telegram comprising
meter reading HT, meter reading NT and po-
wer is transmitted 20 seconds after the po-
wer supply is switched on and then every
10 minutes. The LED lights up brie y when a
telegram is transmitted.
The power display in Field 2 depends on
the number of S0 pulses per KWh from the
meter and is updated every
130 seconds.
The minimum load displayed is
14 watts at 2000 pulses per kWh,
28 watts at 1000 pulses/kWh,
35 watts at 800 pulses/kWh,
56 watts at 500 pulses/kWh,
140 watts at 200 pulses/kWh,
280 watts at 100 pulses/kWh and
2800 watts at 10 pulses/kWh.
Technical data
Rated switching capacity 4A/250 V AC
Incandescent lamp and 1000 W
halogen lamp load1) 230V
Standby loss (active power) 0,5 W
1) Applies to lamps of max. 150W.
Typical connection
EEP A5-12-01:
ORG = 0x07
Data_byte3 to Data_byte1 form a 24-bit
binary coded number
Data_byte3 = Data Byte 3 (MSB) 0…16777215
Data_byte2 = Data Byte 2 0…16777215
Data_byte1 = Data Byte 1 (LSB) 0…16777215
Data_byte0 = DB0_Bit4 = tariff changeover
(0 = Normal rate, 1= Off-peak rate)
DB0_Bit3 = LRN Button (0 = teach-in
telegram, 1 = data telegram)
DB0_Bit2 = data content switchover:
1 = momentary power in watts, 0 = meter
status in 0.1 KW/h
DB0_Bit1 = 0 ( x)
DB0_Bit0 = 1 ( x)
Possible values in data telegram:
DB0 = 0x09 -> meter status normal
rate in 0.1 KW/h
DB0 = 0x19 -> meter status off-peak
rate in 0.1 KW/h
DB0 = 0x0C -> momentary power in W,
normal rate active
DB0 = 0x1C -> momentary power in W,
off-peak rate active
Teach-in telegram: 0x48080D80
(is sent once at every power-up)
When an actuator is ready for
teach-in (the LED  ashes at a low
rate),
the very next incoming signal is
taught-in. Therefore, make absolu tely
sure that you do not activate any
other sensors during the teach-in
phase.
Manuals and documents in further
languages
http://eltako.com/redirect/FSS12-12V_DC
Wireless energy meter
transmitter module
FSS12-12V DC
GB
Temperature at mounting location:
-20°C up to +50°C.
Storage temperature: -25°C up to +70°C.
Relative humidity:
annual average value <75%.
30 100 600 - 4
Only skilled electricians may install this
electrical equipment otherwise there is
the risk of  re or electric shock!
Must be kept for later use!
We recommend the housing for
operating instructions GBA14.
1. App 2. 3.
1. App
www.
2. 3.
Frequency 868.3 MHz
Transmit power max. 10 mW
Hereby, Eltako GmbH declares that the radio
equipment type FSS12-12V DC is in com-
pliance with Directive 2014/53/EU.
The full text of the EU declaration of con-
formity can be accessed via the QR code or
the internet address under 'Documents'.
Eltako GmbH
D-70736 Fellbach
Technical Support English:
[phone]
[e-mail]
eltako.com
03/2023 Subject to change without notice.
!
Wireless energy meter transmitter module
for connecting to the SO interface of many
two-phase energy meter and three-phase
energy meter. Only 0.5 watt standby loss.
With load shedding relay 1 NO contact po-
tential free 4A/250V and with exchangeable
antenna. If required, a wireless antenna
FA250 or FAG55E- can be connected.
Modular device for DIN-EN 60715 TH35 rail
mounting.
2 modules = 36 mm wide, 58 mm deep
The energy meter transmitter module
FSS12 evaluates the signals of the S0 inter-
face of an electricity meter and sends
wireless telegrams with the consumption
and the meter reading to the Eltako wire-
less building for evaluation with the Pro-
fessional Smart Home Controller. On
three-phase energy meters, the data sent
includes normal rate (HT) or off-peak (NT)
energy tariff data, provided the E1/E2 ter-
minals on the three-phase energy meter
are connected to E1/E2 on the FSS12.
From production week 42/2012 also with
adjustable pulse rate.
2 modules wide switching power supply unit
SNT12-12V DC with 12W or 24W. If the relay
of the FSS12 is switched on, 0.6 watts are
required.
The setting and display screen is subdivided
into 3  elds:
 Field 1:
The normal display is the unit of the meter
reading currently displayed in Field 3.
This alternates every 4 seconds with eit-
her kilowatt hours kWh (KWH in display) or
megawatt hours MWh (MWH in display).
The display in Field 1 is supplemented by a
+ sign after the reading to indicate that the
off-peak tariff rate is applied to E1/E2.
 Field 2:
Instantaneous values of energy con-
sumption (active power) in watt (W) or
kilowatt (kW). The left-pointing arrow in
Field 1 indicates an automatic switchover
from 0 to 99W to 0.1 to 65kW.
 Field 3:
The meter reading is the normal display.
Every 4 seconds the display alternates
between 3 whole numbers and 1 decimal
point (from 0.1 to 999.9kWh) and 1 or max
3 whole numbers (from 0 to 999MWh). At
freely chosen pulse rates whose last digit
is not 0, the meter reading is displayed
without decimal place in increments of
1 kWh.
Press the left button MODE to access Sett-
ing mode. Press the right button SET to
browse through the setting options, enter or
edit settings as required and  nally con rm
by pressing MODE.
1. HT  ashes to indicate normal rate meter
reading. Con rm by pressing MODE again
and MWH  ashes. SET changes the meter
reading from 0 to 999 in Field 3. Press SET
brie y to increment by 1; hold down to in-
crement rapidly. Release and press again
to change direction. Con rm by pressing
MODE even if nothing was entered.
2. KWH  ashes and SET changes the meter
reading from 0.1 to 999.9 in Field 3, as be-
fore with MWH. Also con rm the correct
entry by pressing MODE.
3. NT  ashes and the off-peak meter read-
ing may be displayed as described under
HT above.
4. S0  ashes and after con rming with
MODE, the number of S0 pulses (pulse
rate) in box 3 of the energy meter are en-
tered per kWh. This will be provided by
the energy meter imprint. 0010, 0100,
0200, 0500, 0800, 1000 or 2000 are set-
table with SET. If the MODE and SET keys
are pressed mutually, S0 +  ashes on the
display and the impulse rate can be
chosen freely with SET. MODE con rms
the entry.
5. LRN  ashes and after con rming by pres-
sing MODE, a wireless teach-in telegram
is transmitted by pressing SET. If a smart
metering display is already installed, it is
used to teach-in the transmitter ID, provid-
ed the receiver was set to LRN shortly
before. To transmit further wireless
teach-in telegrams, con rm the  ashing
LRN again by pressing MODE and transmit
by pressing SET.
6. PSW  ashes and after con rming by
pressing MODE, press SET to set the pow-
er threshold from 0 to 60kW for the load
shedding relay NO contact and a corres-
ponding wireless telegram. The left poin-
ting arrow in Field 1 indicates kW. Con rm
by pressing MODE.
In the setting 0.0, the relay contact closes
after switching over from normal rate HT to
off-peak NT. At the same time, a wireless
telegram EIN (ON) is transmitted. When the
device is switched over from NT to HT, AUS
(OFF) is transmitted and the relay contact
opens.
With any other value from 1 to 60, the load
shedding relay switches on when the set
threshold value is overshot and switches off
when the set threshold value is undershot
at a hysteresis of 25%. At the same time, a
wireless telegram EIN or AUS is transmitted.
Lock settings: Press MODE and SET to-
gether brie y and lock the  ashing LCK in
Field 1 by pressing SET. To unlock, press
MODE and SET together for 2 seconds and
con rm the  ashing UNL in Field 1 by press-
ing SET.
Wireless telegrams: Maximum every 130
seconds a performance telegram will be
sent and the display will be updated. Other-
wise a telegram will be sent within 20 se-
conds if the power changed by at least 10%.
A switchover from HT to NT is transmitted
immediately in the same way as a meter
reading change. A full telegram comprising
meter reading HT, meter reading NT and po-
wer is transmitted 20 seconds after the po-
wer supply is switched on and then every
10 minutes. The LED lights up brie y when a
telegram is transmitted.
The power display in Field 2 depends on
the number of S0 pulses per KWh from the
meter and is updated every
130 seconds.
The minimum load displayed is
14 watts at 2000 pulses per kWh,
28 watts at 1000 pulses/kWh,
35 watts at 800 pulses/kWh,
56 watts at 500 pulses/kWh,
140 watts at 200 pulses/kWh,
280 watts at 100 pulses/kWh and
2800 watts at 10 pulses/kWh.
Technical data
Rated switching capacity 4A/250 V AC
Incandescent lamp and 1000 W
halogen lamp load1) 230V
Standby loss (active power) 0,5 W
1) Applies to lamps of max. 150W.
Typical connection
EEP A5-12-01:
ORG = 0x07
Data_byte3 to Data_byte1 form a 24-bit
binary coded number
Data_byte3 = Data Byte 3 (MSB) 0…16777215
Data_byte2 = Data Byte 2 0…16777215
Data_byte1 = Data Byte 1 (LSB) 0…16777215
Data_byte0 = DB0_Bit4 = tariff changeover
(0 = Normal rate, 1= Off-peak rate)
DB0_Bit3 = LRN Button (0 = teach-in
telegram, 1 = data telegram)
DB0_Bit2 = data content switchover:
1 = momentary power in watts, 0 = meter
status in 0.1 KW/h
DB0_Bit1 = 0 ( x)
DB0_Bit0 = 1 ( x)
Possible values in data telegram:
DB0 = 0x09 -> meter status normal
rate in 0.1 KW/h
DB0 = 0x19 -> meter status off-peak
rate in 0.1 KW/h
DB0 = 0x0C -> momentary power in W,
normal rate active
DB0 = 0x1C -> momentary power in W,
off-peak rate active
Teach-in telegram: 0x48080D80
(is sent once at every power-up)
When an actuator is ready for
teach-in (the LED  ashes at a low
rate),
the very next incoming signal is
taught-in. Therefore, make absolu tely
sure that you do not activate any
other sensors during the teach-in
phase.
Manuals and documents in further
languages
http://eltako.com/redirect/FSS12-12V_DC
Wireless energy meter
transmitter module
FSS12-12V DC
GB
Temperature at mounting location:
-20°C up to +50°C.
Storage temperature: -25°C up to +70°C.
Relative humidity:
annual average value <75%.
30 100 600 - 4
Only skilled electricians may install this
electrical equipment otherwise there is
the risk of  re or electric shock!
Must be kept for later use!
We recommend the housing for
operating instructions GBA14.
1. App 2. 3.
1. App
www.
2. 3.
Frequency 868.3 MHz
Transmit power max. 10 mW
Hereby, Eltako GmbH declares that the radio
equipment type FSS12-12V DC is in com-
pliance with Directive 2014/53/EU.
The full text of the EU declaration of con-
formity can be accessed via the QR code or
the internet address under 'Documents'.
Eltako GmbH
D-70736 Fellbach
Technical Support English:
[phone]
[e-mail]
eltako.com
03/2023 Subject to change without notice.
!
Wireless energy meter transmitter module
for connecting to the SO interface of many
two-phase energy meter and three-phase
energy meter. Only 0.5 watt standby loss.
With load shedding relay 1 NO contact po-
tential free 4A/250V and with exchangeable
antenna. If required, a wireless antenna
FA250 or FAG55E- can be connected.
Modular device for DIN-EN 60715 TH35 rail
mounting.
2 modules = 36 mm wide, 58 mm deep
The energy meter transmitter module
FSS12 evaluates the signals of the S0 inter-
face of an electricity meter and sends
wireless telegrams with the consumption
and the meter reading to the Eltako wire-
less building for evaluation with the Pro-
fessional Smart Home Controller. On
three-phase energy meters, the data sent
includes normal rate (HT) or off-peak (NT)
energy tariff data, provided the E1/E2 ter-
minals on the three-phase energy meter
are connected to E1/E2 on the FSS12.
From production week 42/2012 also with
adjustable pulse rate.
2 modules wide switching power supply unit
SNT12-12V DC with 12W or 24W. If the relay
of the FSS12 is switched on, 0.6 watts are
required.
The setting and display screen is subdivided
into 3  elds:
 Field 1:
The normal display is the unit of the meter
reading currently displayed in Field 3.
This alternates every 4 seconds with eit-
her kilowatt hours kWh (KWH in display) or
megawatt hours MWh (MWH in display).
The display in Field 1 is supplemented by a
+ sign after the reading to indicate that the
off-peak tariff rate is applied to E1/E2.
 Field 2:
Instantaneous values of energy con-
sumption (active power) in watt (W) or
kilowatt (kW). The left-pointing arrow in
Field 1 indicates an automatic switchover
from 0 to 99W to 0.1 to 65kW.
 Field 3:
The meter reading is the normal display.
Every 4 seconds the display alternates
between 3 whole numbers and 1 decimal
point (from 0.1 to 999.9kWh) and 1 or max
3 whole numbers (from 0 to 999MWh). At
freely chosen pulse rates whose last digit
is not 0, the meter reading is displayed
without decimal place in increments of
1 kWh.
Press the left button MODE to access Sett-
ing mode. Press the right button SET to
browse through the setting options, enter or
edit settings as required and  nally con rm
by pressing MODE.
1. HT  ashes to indicate normal rate meter
reading. Con rm by pressing MODE again
and MWH  ashes. SET changes the meter
reading from 0 to 999 in Field 3. Press SET
brie y to increment by 1; hold down to in-
crement rapidly. Release and press again
to change direction. Con rm by pressing
MODE even if nothing was entered.
2. KWH  ashes and SET changes the meter
reading from 0.1 to 999.9 in Field 3, as be-
fore with MWH. Also con rm the correct
entry by pressing MODE.
3. NT  ashes and the off-peak meter read-
ing may be displayed as described under
HT above.
4. S0  ashes and after con rming with
MODE, the number of S0 pulses (pulse
rate) in box 3 of the energy meter are en-
tered per kWh. This will be provided by
the energy meter imprint. 0010, 0100,
0200, 0500, 0800, 1000 or 2000 are set-
table with SET. If the MODE and SET keys
are pressed mutually, S0 +  ashes on the
display and the impulse rate can be
chosen freely with SET. MODE con rms
the entry.
5. LRN  ashes and after con rming by pres-
sing MODE, a wireless teach-in telegram
is transmitted by pressing SET. If a smart
metering display is already installed, it is
used to teach-in the transmitter ID, provid-
ed the receiver was set to LRN shortly
before. To transmit further wireless
teach-in telegrams, con rm the  ashing
LRN again by pressing MODE and transmit
by pressing SET.
6. PSW  ashes and after con rming by
pressing MODE, press SET to set the pow-
er threshold from 0 to 60kW for the load
shedding relay NO contact and a corres-
ponding wireless telegram. The left poin-
ting arrow in Field 1 indicates kW. Con rm
by pressing MODE.
In the setting 0.0, the relay contact closes
after switching over from normal rate HT to
off-peak NT. At the same time, a wireless
telegram EIN (ON) is transmitted. When the
device is switched over from NT to HT, AUS
(OFF) is transmitted and the relay contact
opens.
With any other value from 1 to 60, the load
shedding relay switches on when the set
threshold value is overshot and switches off
when the set threshold value is undershot
at a hysteresis of 25%. At the same time, a
wireless telegram EIN or AUS is transmitted.
Lock settings: Press MODE and SET to-
gether brie y and lock the  ashing LCK in
Field 1 by pressing SET. To unlock, press
MODE and SET together for 2 seconds and
con rm the  ashing UNL in Field 1 by press-
ing SET.
Wireless telegrams: Maximum every 130
seconds a performance telegram will be
sent and the display will be updated. Other-
wise a telegram will be sent within 20 se-
conds if the power changed by at least 10%.
A switchover from HT to NT is transmitted
immediately in the same way as a meter
reading change. A full telegram comprising
meter reading HT, meter reading NT and po-
wer is transmitted 20 seconds after the po-
wer supply is switched on and then every
10 minutes. The LED lights up brie y when a
telegram is transmitted.
The power display in Field 2 depends on
the number of S0 pulses per KWh from the
meter and is updated every
130 seconds.
The minimum load displayed is
14 watts at 2000 pulses per kWh,
28 watts at 1000 pulses/kWh,
35 watts at 800 pulses/kWh,
56 watts at 500 pulses/kWh,
140 watts at 200 pulses/kWh,
280 watts at 100 pulses/kWh and
2800 watts at 10 pulses/kWh.
Technical data
Rated switching capacity 4A/250 V AC
Incandescent lamp and 1000 W
halogen lamp load1) 230V
Standby loss (active power) 0,5 W
1) Applies to lamps of max. 150W.
Typical connection
EEP A5-12-01:
ORG = 0x07
Data_byte3 to Data_byte1 form a 24-bit
binary coded number
Data_byte3 = Data Byte 3 (MSB) 0…16777215
Data_byte2 = Data Byte 2 0…16777215
Data_byte1 = Data Byte 1 (LSB) 0…16777215
Data_byte0 = DB0_Bit4 = tariff changeover
(0 = Normal rate, 1= Off-peak rate)
DB0_Bit3 = LRN Button (0 = teach-in
telegram, 1 = data telegram)
DB0_Bit2 = data content switchover:
1 = momentary power in watts, 0 = meter
status in 0.1 KW/h
DB0_Bit1 = 0 ( x)
DB0_Bit0 = 1 ( x)
Possible values in data telegram:
DB0 = 0x09 -> meter status normal
rate in 0.1 KW/h
DB0 = 0x19 -> meter status off-peak
rate in 0.1 KW/h
DB0 = 0x0C -> momentary power in W,
normal rate active
DB0 = 0x1C -> momentary power in W,
off-peak rate active
Teach-in telegram: 0x48080D80
(is sent once at every power-up)
When an actuator is ready for
teach-in (the LED  ashes at a low
rate),
the very next incoming signal is
taught-in. Therefore, make absolu tely
sure that you do not activate any
other sensors during the teach-in
phase.
Manuals and documents in further
languages
http://eltako.com/redirect/FSS12-12V_DC
Wireless energy meter
transmitter module
FSS12-12V DC
GB
Temperature at mounting location:
-20°C up to +50°C.
Storage temperature: -25°C up to +70°C.
Relative humidity:
annual average value <75%.
30 100 600 - 4
Only skilled electricians may install this
electrical equipment otherwise there is
the risk of  re or electric shock!
Must be kept for later use!
We recommend the housing for
operating instructions GBA14.
1. App 2. 3.
1. App
www.
2. 3.
Frequency 868.3 MHz
Transmit power max. 10 mW
Hereby, Eltako GmbH declares that the radio
equipment type FSS12-12V DC is in com-
pliance with Directive 2014/53/EU.
The full text of the EU declaration of con-
formity can be accessed via the QR code or
the internet address under 'Documents'.
Eltako GmbH
D-70736 Fellbach
Technical Support English:
[phone]
[e-mail]
eltako.com
03/2023 Subject to change without notice.
!

Wireless energy meter transmitter module
for connecting to the SO interface of many
two-phase energy meter and three-phase
energy meter. Only 0.5 watt standby loss.
With load shedding relay 1 NO contact po-
tential free 4A/250V and with exchangeable
antenna. If required, a wireless antenna
FA250 or FAG55E- can be connected.
Modular device for DIN-EN 60715 TH35 rail
mounting.
2 modules = 36 mm wide, 58 mm deep
The energy meter transmitter module
FSS12 evaluates the signals of the S0 inter-
face of an electricity meter and sends
wireless telegrams with the consumption
and the meter reading to the Eltako wire-
less building for evaluation with the Pro-
fessional Smart Home Controller. On
three-phase energy meters, the data sent
includes normal rate (HT) or off-peak (NT)
energy tariff data, provided the E1/E2 ter-
minals on the three-phase energy meter
are connected to E1/E2 on the FSS12.
From production week 42/2012 also with
adjustable pulse rate.
2 modules wide switching power supply unit
SNT12-12V DC with 12W or 24W. If the relay
of the FSS12 is switched on, 0.6 watts are
required.
The setting and display screen is subdivided
into 3  elds:
 Field 1:
The normal display is the unit of the meter
reading currently displayed in Field 3.
This alternates every 4 seconds with eit-
her kilowatt hours kWh (KWH in display) or
megawatt hours MWh (MWH in display).
The display in Field 1 is supplemented by a
+ sign after the reading to indicate that the
off-peak tariff rate is applied to E1/E2.
 Field 2:
Instantaneous values of energy con-
sumption (active power) in watt (W) or
kilowatt (kW). The left-pointing arrow in
Field 1 indicates an automatic switchover
from 0 to 99W to 0.1 to 65kW.
 Field 3:
The meter reading is the normal display.
Every 4 seconds the display alternates
between 3 whole numbers and 1 decimal
point (from 0.1 to 999.9kWh) and 1 or max
3 whole numbers (from 0 to 999MWh). At
freely chosen pulse rates whose last digit
is not 0, the meter reading is displayed
without decimal place in increments of
1 kWh.
Press the left button MODE to access Sett-
ing mode. Press the right button SET to
browse through the setting options, enter or
edit settings as required and  nally con rm
by pressing MODE.
1. HT  ashes to indicate normal rate meter
reading. Con rm by pressing MODE again
and MWH  ashes. SET changes the meter
reading from 0 to 999 in Field 3. Press SET
brie y to increment by 1; hold down to in-
crement rapidly. Release and press again
to change direction. Con rm by pressing
MODE even if nothing was entered.
2. KWH  ashes and SET changes the meter
reading from 0.1 to 999.9 in Field 3, as be-
fore with MWH. Also con rm the correct
entry by pressing MODE.
3. NT  ashes and the off-peak meter read-
ing may be displayed as described under
HT above.
4. S0  ashes and after con rming with
MODE, the number of S0 pulses (pulse
rate) in box 3 of the energy meter are en-
tered per kWh. This will be provided by
the energy meter imprint. 0010, 0100,
0200, 0500, 0800, 1000 or 2000 are set-
table with SET. If the MODE and SET keys
are pressed mutually, S0 +  ashes on the
display and the impulse rate can be
chosen freely with SET. MODE con rms
the entry.
5. LRN  ashes and after con rming by pres-
sing MODE, a wireless teach-in telegram
is transmitted by pressing SET. If a smart
metering display is already installed, it is
used to teach-in the transmitter ID, provid-
ed the receiver was set to LRN shortly
before. To transmit further wireless
teach-in telegrams, con rm the  ashing
LRN again by pressing MODE and transmit
by pressing SET.
6. PSW  ashes and after con rming by
pressing MODE, press SET to set the pow-
er threshold from 0 to 60kW for the load
shedding relay NO contact and a corres-
ponding wireless telegram. The left poin-
ting arrow in Field 1 indicates kW. Con rm
by pressing MODE.
In the setting 0.0, the relay contact closes
after switching over from normal rate HT to
off-peak NT. At the same time, a wireless
telegram EIN (ON) is transmitted. When the
device is switched over from NT to HT, AUS
(OFF) is transmitted and the relay contact
opens.
With any other value from 1 to 60, the load
shedding relay switches on when the set
threshold value is overshot and switches off
when the set threshold value is undershot
at a hysteresis of 25%. At the same time, a
wireless telegram EIN or AUS is transmitted.
Lock settings: Press MODE and SET to-
gether brie y and lock the  ashing LCK in
Field 1 by pressing SET. To unlock, press
MODE and SET together for 2 seconds and
con rm the  ashing UNL in Field 1 by press-
ing SET.
Wireless telegrams: Maximum every 130
seconds a performance telegram will be
sent and the display will be updated. Other-
wise a telegram will be sent within 20 se-
conds if the power changed by at least 10%.
A switchover from HT to NT is transmitted
immediately in the same way as a meter
reading change. A full telegram comprising
meter reading HT, meter reading NT and po-
wer is transmitted 20 seconds after the po-
wer supply is switched on and then every
10 minutes. The LED lights up brie y when a
telegram is transmitted.
The power display in Field 2 depends on
the number of S0 pulses per KWh from the
meter and is updated every
130 seconds.
The minimum load displayed is
14 watts at 2000 pulses per kWh,
28 watts at 1000 pulses/kWh,
35 watts at 800 pulses/kWh,
56 watts at 500 pulses/kWh,
140 watts at 200 pulses/kWh,
280 watts at 100 pulses/kWh and
2800 watts at 10 pulses/kWh.
Technical data
Rated switching capacity 4A/250 V AC
Incandescent lamp and 1000 W
halogen lamp load1) 230V
Standby loss (active power) 0,5 W
1) Applies to lamps of max. 150W.
Typical connection
EEP A5-12-01:
ORG = 0x07
Data_byte3 to Data_byte1 form a 24-bit
binary coded number
Data_byte3 = Data Byte 3 (MSB) 0…16777215
Data_byte2 = Data Byte 2 0…16777215
Data_byte1 = Data Byte 1 (LSB) 0…16777215
Data_byte0 = DB0_Bit4 = tariff changeover
(0 = Normal rate, 1= Off-peak rate)
DB0_Bit3 = LRN Button (0 = teach-in
telegram, 1 = data telegram)
DB0_Bit2 = data content switchover:
1 = momentary power in watts, 0 = meter
status in 0.1 KW/h
DB0_Bit1 = 0 ( x)
DB0_Bit0 = 1 ( x)
Possible values in data telegram:
DB0 = 0x09 -> meter status normal
rate in 0.1 KW/h
DB0 = 0x19 -> meter status off-peak
rate in 0.1 KW/h
DB0 = 0x0C -> momentary power in W,
normal rate active
DB0 = 0x1C -> momentary power in W,
off-peak rate active
Teach-in telegram: 0x48080D80
(is sent once at every power-up)
When an actuator is ready for
teach-in (the LED  ashes at a low
rate),
the very next incoming signal is
taught-in. Therefore, make absolu tely
sure that you do not activate any
other sensors during the teach-in
phase.
Manuals and documents in further
languages
http://eltako.com/redirect/FSS12-12V_DC
Wireless energy meter
transmitter module
FSS12-12V DC
GB
Temperature at mounting location:
-20°C up to +50°C.
Storage temperature: -25°C up to +70°C.
Relative humidity:
annual average value <75%.
30 100 600 - 4
Only skilled electricians may install this
electrical equipment otherwise there is
the risk of  re or electric shock!
Must be kept for later use!
We recommend the housing for
operating instructions GBA14.
1. App 2. 3.
1. App
www.
2. 3.
Frequency 868.3 MHz
Transmit power max. 10 mW
Hereby, Eltako GmbH declares that the radio
equipment type FSS12-12V DC is in com-
pliance with Directive 2014/53/EU.
The full text of the EU declaration of con-
formity can be accessed via the QR code or
the internet address under 'Documents'.
Eltako GmbH
D-70736 Fellbach
Technical Support English:
[phone]
[e-mail]
eltako.com
03/2023 Subject to change without notice.
!
Wireless energy meter transmitter module
for connecting to the SO interface of many
two-phase energy meter and three-phase
energy meter. Only 0.5 watt standby loss.
With load shedding relay 1 NO contact po-
tential free 4A/250V and with exchangeable
antenna. If required, a wireless antenna
FA250 or FAG55E- can be connected.
Modular device for DIN-EN 60715 TH35 rail
mounting.
2 modules = 36 mm wide, 58 mm deep
The energy meter transmitter module
FSS12 evaluates the signals of the S0 inter-
face of an electricity meter and sends
wireless telegrams with the consumption
and the meter reading to the Eltako wire-
less building for evaluation with the Pro-
fessional Smart Home Controller. On
three-phase energy meters, the data sent
includes normal rate (HT) or off-peak (NT)
energy tariff data, provided the E1/E2 ter-
minals on the three-phase energy meter
are connected to E1/E2 on the FSS12.
From production week 42/2012 also with
adjustable pulse rate.
2 modules wide switching power supply unit
SNT12-12V DC with 12W or 24W. If the relay
of the FSS12 is switched on, 0.6 watts are
required.
The setting and display screen is subdivided
into 3  elds:
 Field 1:
The normal display is the unit of the meter
reading currently displayed in Field 3.
This alternates every 4 seconds with eit-
her kilowatt hours kWh (KWH in display) or
megawatt hours MWh (MWH in display).
The display in Field 1 is supplemented by a
+ sign after the reading to indicate that the
off-peak tariff rate is applied to E1/E2.
 Field 2:
Instantaneous values of energy con-
sumption (active power) in watt (W) or
kilowatt (kW). The left-pointing arrow in
Field 1 indicates an automatic switchover
from 0 to 99W to 0.1 to 65kW.
 Field 3:
The meter reading is the normal display.
Every 4 seconds the display alternates
between 3 whole numbers and 1 decimal
point (from 0.1 to 999.9kWh) and 1 or max
3 whole numbers (from 0 to 999MWh). At
freely chosen pulse rates whose last digit
is not 0, the meter reading is displayed
without decimal place in increments of
1 kWh.
Press the left button MODE to access Sett-
ing mode. Press the right button SET to
browse through the setting options, enter or
edit settings as required and  nally con rm
by pressing MODE.
1. HT  ashes to indicate normal rate meter
reading. Con rm by pressing MODE again
and MWH  ashes. SET changes the meter
reading from 0 to 999 in Field 3. Press SET
brie y to increment by 1; hold down to in-
crement rapidly. Release and press again
to change direction. Con rm by pressing
MODE even if nothing was entered.
2. KWH  ashes and SET changes the meter
reading from 0.1 to 999.9 in Field 3, as be-
fore with MWH. Also con rm the correct
entry by pressing MODE.
3. NT  ashes and the off-peak meter read-
ing may be displayed as described under
HT above.
4. S0  ashes and after con rming with
MODE, the number of S0 pulses (pulse
rate) in box 3 of the energy meter are en-
tered per kWh. This will be provided by
the energy meter imprint. 0010, 0100,
0200, 0500, 0800, 1000 or 2000 are set-
table with SET. If the MODE and SET keys
are pressed mutually, S0 +  ashes on the
display and the impulse rate can be
chosen freely with SET. MODE con rms
the entry.
5. LRN  ashes and after con rming by pres-
sing MODE, a wireless teach-in telegram
is transmitted by pressing SET. If a smart
metering display is already installed, it is
used to teach-in the transmitter ID, provid-
ed the receiver was set to LRN shortly
before. To transmit further wireless
teach-in telegrams, con rm the  ashing
LRN again by pressing MODE and transmit
by pressing SET.
6. PSW  ashes and after con rming by
pressing MODE, press SET to set the pow-
er threshold from 0 to 60kW for the load
shedding relay NO contact and a corres-
ponding wireless telegram. The left poin-
ting arrow in Field 1 indicates kW. Con rm
by pressing MODE.
In the setting 0.0, the relay contact closes
after switching over from normal rate HT to
off-peak NT. At the same time, a wireless
telegram EIN (ON) is transmitted. When the
device is switched over from NT to HT, AUS
(OFF) is transmitted and the relay contact
opens.
With any other value from 1 to 60, the load
shedding relay switches on when the set
threshold value is overshot and switches off
when the set threshold value is undershot
at a hysteresis of 25%. At the same time, a
wireless telegram EIN or AUS is transmitted.
Lock settings: Press MODE and SET to-
gether brie y and lock the  ashing LCK in
Field 1 by pressing SET. To unlock, press
MODE and SET together for 2 seconds and
con rm the  ashing UNL in Field 1 by press-
ing SET.
Wireless telegrams: Maximum every 130
seconds a performance telegram will be
sent and the display will be updated. Other-
wise a telegram will be sent within 20 se-
conds if the power changed by at least 10%.
A switchover from HT to NT is transmitted
immediately in the same way as a meter
reading change. A full telegram comprising
meter reading HT, meter reading NT and po-
wer is transmitted 20 seconds after the po-
wer supply is switched on and then every
10 minutes. The LED lights up brie y when a
telegram is transmitted.
The power display in Field 2 depends on
the number of S0 pulses per KWh from the
meter and is updated every
130 seconds.
The minimum load displayed is
14 watts at 2000 pulses per kWh,
28 watts at 1000 pulses/kWh,
35 watts at 800 pulses/kWh,
56 watts at 500 pulses/kWh,
140 watts at 200 pulses/kWh,
280 watts at 100 pulses/kWh and
2800 watts at 10 pulses/kWh.
Technical data
Rated switching capacity 4A/250 V AC
Incandescent lamp and 1000 W
halogen lamp load1) 230V
Standby loss (active power) 0,5 W
1) Applies to lamps of max. 150W.
Typical connection
EEP A5-12-01:
ORG = 0x07
Data_byte3 to Data_byte1 form a 24-bit
binary coded number
Data_byte3 = Data Byte 3 (MSB) 0…16777215
Data_byte2 = Data Byte 2 0…16777215
Data_byte1 = Data Byte 1 (LSB) 0…16777215
Data_byte0 = DB0_Bit4 = tariff changeover
(0 = Normal rate, 1= Off-peak rate)
DB0_Bit3 = LRN Button (0 = teach-in
telegram, 1 = data telegram)
DB0_Bit2 = data content switchover:
1 = momentary power in watts, 0 = meter
status in 0.1 KW/h
DB0_Bit1 = 0 ( x)
DB0_Bit0 = 1 ( x)
Possible values in data telegram:
DB0 = 0x09 -> meter status normal
rate in 0.1 KW/h
DB0 = 0x19 -> meter status off-peak
rate in 0.1 KW/h
DB0 = 0x0C -> momentary power in W,
normal rate active
DB0 = 0x1C -> momentary power in W,
off-peak rate active
Teach-in telegram: 0x48080D80
(is sent once at every power-up)
When an actuator is ready for
teach-in (the LED  ashes at a low
rate),
the very next incoming signal is
taught-in. Therefore, make absolu
tely
sure that you do not activate any
other sensors during the teach-in
phase.
Manuals and documents in further
languages
http://eltako.com/redirect/FSS12-12V_DC
Wireless energy meter
transmitter module
FSS12-12V DC
GB
Temperature at mounting location:
-20°C up to +50°C.
Storage temperature: -25°C up to +70°C.
Relative humidity:
annual average value <75%.
30 100 600 - 4
Only skilled electricians may install this
electrical equipment otherwise there is
the risk of  re or electric shock!
Must be kept for later use!
We recommend the housing for
operating instructions GBA14.
1. App 2. 3.
1. App
www.
2. 3.
Frequency 868.3 MHz
Transmit power max. 10 mW
Hereby, Eltako GmbH declares that the radio
equipment type FSS12-12V DC is in com-
pliance with Directive 2014/53/EU.
The full text of the EU declaration of con-
formity can be accessed via the QR code or
the internet address under 'Documents'.
Eltako GmbH
D-70736 Fellbach
Technical Support English:
[phone]
[e-mail]
eltako.com
03/2023 Subject to change without notice.
!
Wireless energy meter transmitter module
for connecting to the SO interface of many
two-phase energy meter and three-phase
energy meter. Only 0.5 watt standby loss.
With load shedding relay 1 NO contact po-
tential free 4A/250V and with exchangeable
antenna. If required, a wireless antenna
FA250 or FAG55E- can be connected.
Modular device for DIN-EN 60715 TH35 rail
mounting.
2 modules = 36 mm wide, 58 mm deep
The energy meter transmitter module
FSS12 evaluates the signals of the S0 inter-
face of an electricity meter and sends
wireless telegrams with the consumption
and the meter reading to the Eltako wire-
less building for evaluation with the Pro-
fessional Smart Home Controller. On
three-phase energy meters, the data sent
includes normal rate (HT) or off-peak (NT)
energy tariff data, provided the E1/E2 ter-
minals on the three-phase energy meter
are connected to E1/E2 on the FSS12.
From production week 42/2012 also with
adjustable pulse rate.
2 modules wide switching power supply unit
SNT12-12V DC with 12W or 24W. If the relay
of the FSS12 is switched on, 0.6 watts are
required.
The setting and display screen is subdivided
into 3  elds:
 Field 1:
The normal display is the unit of the meter
reading currently displayed in Field 3.
This alternates every 4 seconds with eit-
her kilowatt hours kWh (KWH in display) or
megawatt hours MWh (MWH in display).
The display in Field 1 is supplemented by a
+ sign after the reading to indicate that the
off-peak tariff rate is applied to E1/E2.
 Field 2:
Instantaneous values of energy con-
sumption (active power) in watt (W) or
kilowatt (kW). The left-pointing arrow in
Field 1 indicates an automatic switchover
from 0 to 99W to 0.1 to 65kW.
 Field 3:
The meter reading is the normal display.
Every 4 seconds the display alternates
between 3 whole numbers and 1 decimal
point (from 0.1 to 999.9kWh) and 1 or max
3 whole numbers (from 0 to 999MWh). At
freely chosen pulse rates whose last digit
is not 0, the meter reading is displayed
without decimal place in increments of
1 kWh.
Press the left button MODE to access Sett-
ing mode. Press the right button SET to
browse through the setting options, enter or
edit settings as required and  nally con rm
by pressing MODE.
1. HT  ashes to indicate normal rate meter
reading. Con rm by pressing MODE again
and MWH  ashes. SET changes the meter
reading from 0 to 999 in Field 3. Press SET
brie y to increment by 1; hold down to in-
crement rapidly. Release and press again
to change direction. Con rm by pressing
MODE even if nothing was entered.
2. KWH  ashes and SET changes the meter
reading from 0.1 to 999.9 in Field 3, as be-
fore with MWH. Also con rm the correct
entry by pressing MODE.
3. NT  ashes and the off-peak meter read-
ing may be displayed as described under
HT above.
4. S0  ashes and after con rming with
MODE, the number of S0 pulses (pulse
rate) in box 3 of the energy meter are en-
tered per kWh. This will be provided by
the energy meter imprint. 0010, 0100,
0200, 0500, 0800, 1000 or 2000 are set-
table with SET. If the MODE and SET keys
are pressed mutually, S0 +  ashes on the
display and the impulse rate can be
chosen freely with SET. MODE con rms
the entry.
5. LRN  ashes and after con rming by pres-
sing MODE, a wireless teach-in telegram
is transmitted by pressing SET. If a smart
metering display is already installed, it is
used to teach-in the transmitter ID, provid-
ed the receiver was set to LRN shortly
before. To transmit further wireless
teach-in telegrams, con rm the  ashing
LRN again by pressing MODE and transmit
by pressing SET.
6. PSW  ashes and after con rming by
pressing MODE, press SET to set the pow-
er threshold from 0 to 60kW for the load
shedding relay NO contact and a corres-
ponding wireless telegram. The left poin-
ting arrow in Field 1 indicates kW. Con rm
by pressing MODE.
In the setting 0.0, the relay contact closes
after switching over from normal rate HT to
off-peak NT. At the same time, a wireless
telegram EIN (ON) is transmitted. When the
device is switched over from NT to HT, AUS
(OFF) is transmitted and the relay contact
opens.
With any other value from 1 to 60, the load
shedding relay switches on when the set
threshold value is overshot and switches off
when the set threshold value is undershot
at a hysteresis of 25%. At the same time, a
wireless telegram EIN or AUS is transmitted.
Lock settings: Press MODE and SET to-
gether brie y and lock the  ashing LCK in
Field 1 by pressing SET. To unlock, press
MODE and SET together for 2 seconds and
con rm the  ashing UNL in Field 1 by press-
ing SET.
Wireless telegrams: Maximum every 130
seconds a performance telegram will be
sent and the display will be updated. Other-
wise a telegram will be sent within 20 se-
conds if the power changed by at least 10%.
A switchover from HT to NT is transmitted
immediately in the same way as a meter
reading change. A full telegram comprising
meter reading HT, meter reading NT and po-
wer is transmitted 20 seconds after the po-
wer supply is switched on and then every
10 minutes. The LED lights up brie y when a
telegram is transmitted.
The power display in Field 2 depends on
the number of S0 pulses per KWh from the
meter and is updated every
130 seconds.
The minimum load displayed is
14 watts at 2000 pulses per kWh,
28 watts at 1000 pulses/kWh,
35 watts at 800 pulses/kWh,
56 watts at 500 pulses/kWh,
140 watts at 200 pulses/kWh,
280 watts at 100 pulses/kWh and
2800 watts at 10 pulses/kWh.
Technical data
Rated switching capacity 4A/250 V AC
Incandescent lamp and 1000 W
halogen lamp load1) 230V
Standby loss (active power) 0,5 W
1) Applies to lamps of max. 150W.
Typical connection
EEP A5-12-01:
ORG = 0x07
Data_byte3 to Data_byte1 form a 24-bit
binary coded number
Data_byte3 = Data Byte 3 (MSB) 0…16777215
Data_byte2 = Data Byte 2 0…16777215
Data_byte1 = Data Byte 1 (LSB) 0…16777215
Data_byte0 = DB0_Bit4 = tariff changeover
(0 = Normal rate, 1= Off-peak rate)
DB0_Bit3 = LRN Button (0 = teach-in
telegram, 1 = data telegram)
DB0_Bit2 = data content switchover:
1 = momentary power in watts, 0 = meter
status in 0.1 KW/h
DB0_Bit1 = 0 ( x)
DB0_Bit0 = 1 ( x)
Possible values in data telegram:
DB0 = 0x09 -> meter status normal
rate in 0.1 KW/h
DB0 = 0x19 -> meter status off-peak
rate in 0.1 KW/h
DB0 = 0x0C -> momentary power in W,
normal rate active
DB0 = 0x1C -> momentary power in W,
off-peak rate active
Teach-in telegram: 0x48080D80
(is sent once at every power-up)
When an actuator is ready for
teach-in (the LED  ashes at a low
rate),
the very next incoming signal is
taught-in. Therefore, make absolu tely
sure that you do not activate any
other sensors during the teach-in
phase.
Manuals and documents in further
languages
http://eltako.com/redirect/FSS12-12V_DC
Wireless energy meter
transmitter module
FSS12-12V DC
GB
Temperature at mounting location:
-20°C up to +50°C.
Storage temperature: -25°C up to +70°C.
Relative humidity:
annual average value <75%.
30 100 600 - 4
Only skilled electricians may install this
electrical equipment otherwise there is
the risk of  re or electric shock!
Must be kept for later use!
We recommend the housing for
operating instructions GBA14.
1. App 2. 3.
1. App
www.
2. 3.
Frequency 868.3 MHz
Transmit power max. 10 mW
Hereby, Eltako GmbH declares that the radio
equipment type FSS12-12V DC is in com-
pliance with Directive 2014/53/EU.
The full text of the EU declaration of con-
formity can be accessed via the QR code or
the internet address under 'Documents'.
Eltako GmbH
D-70736 Fellbach
Technical Support English:
[phone]
[e-mail]
eltako.com
03/2023 Subject to change without notice.
!
Wireless energy meter transmitter module
for connecting to the SO interface of many
two-phase energy meter and three-phase
energy meter. Only 0.5 watt standby loss.
With load shedding relay 1 NO contact po-
tential free 4A/250V and with exchangeable
antenna. If required, a wireless antenna
FA250 or FAG55E- can be connected.
Modular device for DIN-EN 60715 TH35 rail
mounting.
2 modules = 36 mm wide, 58 mm deep
The energy meter transmitter module
FSS12 evaluates the signals of the S0 inter-
face of an electricity meter and sends
wireless telegrams with the consumption
and the meter reading to the Eltako wire-
less building for evaluation with the Pro-
fessional Smart Home Controller. On
three-phase energy meters, the data sent
includes normal rate (HT) or off-peak (NT)
energy tariff data, provided the E1/E2 ter-
minals on the three-phase energy meter
are connected to E1/E2 on the FSS12.
From production week 42/2012 also with
adjustable pulse rate.
2 modules wide switching power supply unit
SNT12-12V DC with 12W or 24W. If the relay
of the FSS12 is switched on, 0.6 watts are
required.
The setting and display screen is subdivided
into 3  elds:
 Field 1:
The normal display is the unit of the meter
reading currently displayed in Field 3.
This alternates every 4 seconds with eit-
her kilowatt hours kWh (KWH in display) or
megawatt hours MWh (MWH in display).
The display in Field 1 is supplemented by a
+ sign after the reading to indicate that the
off-peak tariff rate is applied to E1/E2.
 Field 2:
Instantaneous values of energy con-
sumption (active power) in watt (W) or
kilowatt (kW). The left-pointing arrow in
Field 1 indicates an automatic switchover
from 0 to 99W to 0.1 to 65kW.
 Field 3:
The meter reading is the normal display.
Every 4 seconds the display alternates
between 3 whole numbers and 1 decimal
point (from 0.1 to 999.9kWh) and 1 or max
3 whole numbers (from 0 to 999MWh). At
freely chosen pulse rates whose last digit
is not 0, the meter reading is displayed
without decimal place in increments of
1 kWh.
Press the left button MODE to access Sett-
ing mode. Press the right button SET to
browse through the setting options, enter or
edit settings as required and  nally con rm
by pressing MODE.
1. HT  ashes to indicate normal rate meter
reading. Con rm by pressing MODE again
and MWH  ashes. SET changes the meter
reading from 0 to 999 in Field 3. Press SET
brie y to increment by 1; hold down to in-
crement rapidly. Release and press again
to change direction. Con rm by pressing
MODE even if nothing was entered.
2. KWH  ashes and SET changes the meter
reading from 0.1 to 999.9 in Field 3, as be-
fore with MWH. Also con rm the correct
entry by pressing MODE.
3. NT  ashes and the off-peak meter read-
ing may be displayed as described under
HT above.
4. S0  ashes and after con rming with
MODE, the number of S0 pulses (pulse
rate) in box 3 of the energy meter are en-
tered per kWh. This will be provided by
the energy meter imprint. 0010, 0100,
0200, 0500, 0800, 1000 or 2000 are set-
table with SET. If the MODE and SET keys
are pressed mutually, S0 +  ashes on the
display and the impulse rate can be
chosen freely with SET. MODE con rms
the entry.
5. LRN  ashes and after con rming by pres-
sing MODE, a wireless teach-in telegram
is transmitted by pressing SET. If a smart
metering display is already installed, it is
used to teach-in the transmitter ID, provid-
ed the receiver was set to LRN shortly
before. To transmit further wireless
teach-in telegrams, con rm the  ashing
LRN again by pressing MODE and transmit
by pressing SET.
6. PSW  ashes and after con rming by
pressing MODE, press SET to set the pow-
er threshold from 0 to 60kW for the load
shedding relay NO contact and a corres-
ponding wireless telegram. The left poin-
ting arrow in Field 1 indicates kW. Con rm
by pressing MODE.
In the setting 0.0, the relay contact closes
after switching over from normal rate HT to
off-peak NT. At the same time, a wireless
telegram EIN (ON) is transmitted. When the
device is switched over from NT to HT, AUS
(OFF) is transmitted and the relay contact
opens.
With any other value from 1 to 60, the load
shedding relay switches on when the set
threshold value is overshot and switches off
when the set threshold value is undershot
at a hysteresis of 25%. At the same time, a
wireless telegram EIN or AUS is transmitted.
Lock settings: Press MODE and SET to-
gether brie y and lock the  ashing LCK in
Field 1 by pressing SET. To unlock, press
MODE and SET together for 2 seconds and
con rm the  ashing UNL in Field 1 by press-
ing SET.
Wireless telegrams: Maximum every 130
seconds a performance telegram will be
sent and the display will be updated. Other-
wise a telegram will be sent within 20 se-
conds if the power changed by at least 10%.
A switchover from HT to NT is transmitted
immediately in the same way as a meter
reading change. A full telegram comprising
meter reading HT, meter reading NT and po-
wer is transmitted 20 seconds after the po-
wer supply is switched on and then every
10 minutes. The LED lights up brie y when a
telegram is transmitted.
The power display in Field 2 depends on
the number of S0 pulses per KWh from the
meter and is updated every
130 seconds.
The minimum load displayed is
14 watts at 2000 pulses per kWh,
28 watts at 1000 pulses/kWh,
35 watts at 800 pulses/kWh,
56 watts at 500 pulses/kWh,
140 watts at 200 pulses/kWh,
280 watts at 100 pulses/kWh and
2800 watts at 10 pulses/kWh.
Technical data
Rated switching capacity 4A/250 V AC
Incandescent lamp and 1000 W
halogen lamp load1) 230V
Standby loss (active power) 0,5 W
1) Applies to lamps of max. 150W.
Typical connection
EEP A5-12-01:
ORG = 0x07
Data_byte3 to Data_byte1 form a 24-bit
binary coded number
Data_byte3 = Data Byte 3 (MSB) 0…16777215
Data_byte2 = Data Byte 2 0…16777215
Data_byte1 = Data Byte 1 (LSB) 0…16777215
Data_byte0 = DB0_Bit4 = tariff changeover
(0 = Normal rate, 1= Off-peak rate)
DB0_Bit3 = LRN Button (0 = teach-in
telegram, 1 = data telegram)
DB0_Bit2 = data content switchover:
1 = momentary power in watts, 0 = meter
status in 0.1 KW/h
DB0_Bit1 = 0 ( x)
DB0_Bit0 = 1 ( x)
Possible values in data telegram:
DB0 = 0x09 -> meter status normal
rate in 0.1 KW/h
DB0 = 0x19 -> meter status off-peak
rate in 0.1 KW/h
DB0 = 0x0C -> momentary power in W,
normal rate active
DB0 = 0x1C -> momentary power in W,
off-peak rate active
Teach-in telegram: 0x48080D80
(is sent once at every power-up)
When an actuator is ready for
teach-in (the LED  ashes at a low
rate),
the very next incoming signal is
taught-in. Therefore, make absolu tely
sure that you do not activate any
other sensors during the teach-in
phase.
Manuals and documents in further
languages
http://eltako.com/redirect/FSS12-12V_DC
Wireless energy meter
transmitter module
FSS12-12V DC
GB
Temperature at mounting location:
-20°C up to +50°C.
Storage temperature: -25°C up to +70°C.
Relative humidity:
annual average value <75%.
30 100 600 - 4
Only skilled electricians may install this
electrical equipment otherwise there is
the risk of  re or electric shock!
Must be kept for later use!
We recommend the housing for
operating instructions GBA14.
1. App 2. 3.
1. App
www.
2. 3.
Frequency 868.3 MHz
Transmit power max. 10 mW
Hereby, Eltako GmbH declares that the radio
equipment type FSS12-12V DC is in com-
pliance with Directive 2014/53/EU.
The full text of the EU declaration of con-
formity can be accessed via the QR code or
the internet address under 'Documents'.
Eltako GmbH
D-70736 Fellbach
Technical Support English:
[phone]
[e-mail]
eltako.com
03/2023 Subject to change without notice.
!