Eaton Cutler-Hammer D64 Series User manual

PUB 50413
D64RPBH13 SERIES B1 GROUND FAULT RELAY
Revision 2
September, 2009 Page 1
D64RPBH13 INSTRUCTION MANUAL
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F 2034-0 2-00
RUN
Cat. No. D64RPBH13
1
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12
L R
LAST TR IP
FLAS HES:
1 = G ROUND FAULT
2 = INHIBIT BACKUP
4 = CT OPEN CI RCU IT
5 = F/ S CV LO SS
CON T’ = TRIP FAILE D
RESET
DOU BLE C LICK
FO R TE ST
T
TRIPPED
NORMAL
SWITCH
L
L
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2.5
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10A
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20A
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20A
20A
50A
50A
50A
50A
50A
50A
50A
100A
100A
100A
100A
100A
100A
100A
RL
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1000A
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1000A
1000A
1000A
1000A
2000A
2000A
2000A
2000A
2000A
2000A
2000A
500:1 CT 10000:1 CT
5 7 8 96
G/F TRIP LEVEL
+ TRIP INHIBIT LEVEL
L
R
NON-FAILSAFE
FAILSAFE
SW 12 OPERATING MODE
L
R
DISABLED
ENABLED
SW 11 TRIP INHIBIT MODE
SWITCH G/F TRIP
L
L
L
L
L
L
L
L
R
R
R
R
R
R
L
L
L
L
R
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25 ms
65 ms
100 ms
130 ms
160 ms
190 ms
225 ms
255 ms
375 ms
500 ms
625 ms
750 ms
875 ms
1000 ms
1 2 3 4 DELAY
CANADA USA
Eaton Electrical Canadian Operation Eaton Electrical
5050 Mainway Drive 1000 Cherrington Parkway
Burlington, Ontario, Moon Township, PA
L7L 5Z1 15108

PUB 50413
D64RPBH13 SERIES B1 GROUND FAULT RELAY
Revision 2
September, 2009 Page 2
TABLE OF CONTENTS
PAGE
TABLE OF CONTENTS ......................................................................................................................... 2
LIST OF FIGURES, TABLES & FORMS ................................................................................................ 2
1. GENERAL DESCRIPTION ......................................................................................................... 3
2. OPERATION ......................................................................................................................... 4
2.1 GLOSSARY OF TERMS ............................................................................................... 4
2.2 DIPSWITCH SETTINGS ............................................................................................... 5
2.2.1 GROUND FAULT TRIP DELAY....................................................................... 6
2.2.2 GROUND FAULT TRIP LEVEL ....................................................................... 6
2.2.3 TRIP INHIBIT MODE........................................................................................ 7
2.2.4 OUTPUT CIRCUIT BREAKER OPERATING MODE ...................................... 8
2.3 TAMPERPROOF DIPSWITCHES................................................................................. 8
2.4 INDICATION .................................................................................................................. 8
2.5 G/F TEST - RESET ....................................................................................................... 9
2.5.1 G/F TEST INTERNAL ...................................................................................... 9
2.5.2 G/F TEST EXTERNAL..................................................................................... 9
2.5.3 RESET ............................................................................................................. 9
2.6 MEMORY AFTER LOSS OF CONTROL VOLTAGE .................................................... 10
3. INSTALLATION INSTRUCTIONS............................................................................................... 10
3.1 MOUNTING ................................................................................................................... 10
3.1.1 THROUGH-THE-DOOR .................................................................................. 10
3.1.2 REAR PANEL .................................................................................................. 10
3.2 EXTERNAL C311CT CURRENT TRANSFORMER. . .................................................. 11
3.3 CONNECTIONS ............................................................................................................ 11
4. CATALOG NUMBERS................................................................................................................ 12
5. TECHNICAL SPECIFICATION ................................................................................................... 12
LIST OF FIGURES, TABLES, & FORMS
FIGURE NO. PAGE
1. TYPICAL FIELD CONNECTIONS............................................................................................... 16
2. DIMENSIONS & WEIGHTS ........................................................................................................ 17
TABLE NO.
1. GROUND FAULT TRIP DELAY.................................................................................................. 6
2. GROUND FAULT TRIP LEVEL .................................................................................................. 7
3. TRIP INHIBIT MODE................................................................................................................... 7
4. OUTPUT CIRCUIT BREAKER OPERATIN MODE .................................................................... 8
5. CIRCUIT BREAKER TRIP CONTACT STATES......................................................................... 18
FORM NO.
1. TEST RECORD ......................................................................................................................... 19

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D64RPBH13 SERIES B1 GROUND FAULT RELAY
Revision 2
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1. GENERAL DESCRIPTION
The D64RPBH13 is a ground fault relay for use on solidly grounded or resistance grounded systems over a
frequency range of 40 - 200 Hz. This innovative digital electronic relay measures ground fault current using
either, a special Eaton’s Cutler-Hammer C311CT zero sequence current transformer with a turns ratio of
10000:1 or, the standard family of C311CT zero sequence current transformers with a turns ratio of 500:1.
Either C311CT is connected to the CT input terminals CT1 & CT2
The D64RPBH13 reacts to alternating current only and will reject direct current signals. It will maintain accuracy
over a frequency range of 40 to 200 Hz., making it suitable for variable frequency drive applications.
The ground fault current trip level is set on 5 DIPswitches in 25 discrete steps. The range is 50 Amps - 1200
Amps when using the 10,000:1 CTs and 2.5 Amps – 60 Amps when using the 500:1 CTs. The trip level can be
set just above the charging current1. Any deterioration in the circuit will trip the relay. This also permits scheduled
field testing of the relay (by lowering the trip level).
1 The capacitance-to-ground charging current on a system will vary depending on: the overall length of
the cables; the types of loads; the quality of insulation on the phase conductors; the surrounding
equipment grounding, cable trays, junction boxes, etc.; and, the type of transformer.
A "Rule-of-Thumb" for systems 600 Volts and lower: The charging current is 0.5 Amps per 1000 kVA of
transformer capacity.
The response time on ground fault trip is set on 4 DIPswitches. The range is 25 ms - 1.00 second in 14 discrete
steps.
The D64RPBH13 is suitable for use on Service Protection Equipment applications.
The Trip INHIBIT function can be Enabled or Disabled by means of a front accessible DIPswitch. The inhibit
level is related to the ground fault trip level setting over a range of 200 Amps to 2000 amps when using the
10,000:1 CTs and 10 Amps – 100 Amps when using the 500:1 CTs. With Inhibit Enabled, if the ground fault
current exceeds the inhibit level, the output circuit breaker trip will be inhibited until the ground fault current drops
below the inhibit level.
A voltage-operated circuit breaker with an external toggle handle is used as the output device. It provides a
visual indication of the status of its output contacts. The contacts are Form "C" N.O. - N.C. voltage free. They
may be used to operate the upstream protective device and indicate a failure of the system. The circuit breaker
can be set to operate in the failsafe or the non-failsafe mode by means of a front accessible DIPswitch. The
circuit breaker mechanism is trip free (cannot be closed if a ground fault is being sensed by the relay). Manual
reset of the circuit breaker toggle will restore the output contacts to the normal state.
The circuit breaker toggle in the Tripped position indicates that the D64RPBH13 has sensed a ground fault
current higher than the trip level for a period longer than the trip time and that the output contacts have operated,
or, if in the Failsafe mode, it will also indicate that the control voltage has been removed from terminals L+ & N-.
The D64RPBH13 constantly supervises the connection to the external CT. Open circuits are detected and will
cause a trip. Please note that the D64RPBH13 does not employ any DC injection to implement this since even
small DC current sent through the secondary windings of a CT can bias its core enough to shift the trip point
outside specification on sensitive settings. For the CT supervision to work, either the special Eaton’s Cutler-
Hammer C311CT zero sequence current transformer with a turns ratio of 10000:1, or the standard family of
Series A2 C311CT zero sequence current transformers with a turns ratio of 500:1 must be installed, as specified
in section 3.2.
A Cover mounted RESET button is standard. A green RUN LED shows correct operation by slowly flashing (1 s
on/ 1 s off) when control voltage is applied to terminals L+ & N-. A red LED shows short 0.25 s flashes as a code
indicating the cause of trip: 1 flash every few seconds – ground fault; 2 consecutive flashes – Inhibit Backup; 4
consecutive flashes – CT circuit open; 5 consecutive flashes – Control Voltage lost in Failsafe mode (See
Section 2.6 for explanation of memory feature); continuous consecutive flashes – Trip Failed.

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D64RPBH13 SERIES B1 GROUND FAULT RELAY
Revision 2
September, 2009 Page 4
Pull-apart terminal blocks simplify connection of field wiring. They have two 12 AWG screw clamps per pole with
90°and 180°orientation. Captive screws secure the blocks to the relay, safe from the effects of shock and
vibration.
The D64RPBH13 operates on a control voltage of 110 - 240 Volts ac/dc.
2. OPERATION
2.1 GLOSSARY OF TERMS
Circuit Breaker Toggle - Normal:
It is not necessary to apply control voltage to terminals L+ & N- before resetting the toggle of
the circuit breaker to Normal. However, control voltage must be applied to terminals L+ & N- in
order for the relay to sense a trip condition.
With control voltage on terminals L+& N- (green RUN LED flashing), The Normal position
indicates that the D64RPBH13 is sensing a normal condition (no ground fault on the system
being monitored).
In the Normal position the output contacts are in the normal state: Terminals 11-14 closed,
Terminals 11-12 open.
Circuit Breaker Toggle - Tripped:
With control voltage on terminals L+ & N- (green RUN LED flashing), The Tripped position
indicates that the D64RPBH13 has sensed a ground fault current higher than the trip level for a
period longer than the trip time and that the output contacts have operated.
Also, if the D64RPBH13 is in Failsafe mode, the Tripped position will indicate that the control
voltage has been removed from terminals L+ & N-.
In the Tripped position the output contacts are in the tripped state: Terminals 11-14 open;
Terminals 11-12 closed.
Manual Reset:
The toggle of the circuit breaker must be placed in the Normal position to reset the contacts to
the normal state after a trip, providing the ground fault has been cleared or the measured
values are within the preset limits.
Non-Failsafe:
The circuit breaker can be placed in the Normal position with or without control voltage being
applied on terminals L+ & N-. Control voltage must be applied to terminals L+ & N- in order for
the relay to sense a trip condition.
With control voltage on terminals L+ & N- (green RUN LED flashing), the circuit breaker will trip
and the output contacts will change state when the measured values reach or exceed the
DIPswitch settings for current and time.
The Non-Failsafe mode is recommended for the circuit breaker Trip when being used with
shunt trip devices. The circuit breaker should be equipped with a coil clearing contact in its
shunt trip circuit.
Failsafe:
The circuit breaker can be placed in the Normal position with or without control voltage being
applied on terminals L+ & N-. Control voltage must be applied to terminals L+ & N- in order for
the relay to sense a trip condition.
The circuit breaker will trip and the output contacts will change state when either or both of the
following conditions occur:
- The measured values reach or exceed the DIPswitch settings for current and time.
- Control voltage is removed from terminals L+ & N-.
The Failsafe mode is recommended for the circuit breaker Trip when being used with
undervoltage devices. This includes: contactor coils; starter coils; and circuit breakers equipped
with UV trip coils.

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D64RPBH13 SERIES B1 GROUND FAULT RELAY
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Trip Free:
The output circuit breaker is 'trip free', meaning that its contact cannot be held closed against a
fault by manually keeping the toggle in the NORMAL position. Note however that this is only
true when control voltage is present on terminals L+ and N-.
Trip Inhibit:
Contactors are not designed to interrupt high fault currents. Under these conditions the
upstream short circuit protective devices, fuses or circuit breaker, should interrupt the fault.
Trip INHIBIT function can be Enabled or Disabled by means of DIPswitch no. 11. The inhibit
level is related to the ground fault trip level over a range of 200 Amps to 2000 amps when
using the special Eaton’s Cutler-Hammer C311CT zero sequence current transformer with a
turns ratio of 10000:1. With Inhibit Enabled, if the ground fault current exceeds the inhibit level
the output circuit breaker will be inhibited until the ground fault current drops below the inhibit
level. However, should the current fail to drop within 1.2 s, then, as a last resort, the unit will trip
showing the ‘Inhibit Backup Trip’ code on its red LED (2 flashes). It is advisable to replace the
contactor after this event since it was used to break a current possibly well outside its rating.
The inhibit level is related to the ground fault trip level over a range of 10 Amps to 100 amps,
when using the standard family of C311CT zero sequence current transformers with a turns
ratio of 500:1.
With Inhibit Disabled under the same conditions, the output circuit breaker will trip after the
preset trip delay time.
The INHIBIT function is useful when the D64RPBH13 is being used to trip a contactor or motor
starter on a solidly grounded system. In this application, there is no defined limit to the
magnitude of ground fault current should a bolted ground fault occur. By inhibiting the trip it
allows the upstream protective device to clear the fault.
MEMORY AFTER LOSS OF CONTROL VOLTAGE
When control voltage is removed from the D64RPBH13, the LAST TRIP registration will be
memorized (for at least one week). Pressing the Reset pushbutton before restoring control
voltage will light either the green LED or the red LED, green indicating no trip was registered
and red indicating the opposite. The green LED will light continuously, whereas the red LED will
give a sequence of short flashes as described in section 2.4 indicating the cause of trip.
2.2 DIPSWITCH SETTINGS
Refer to the figure on the front page of this manual. There is one 12 - position array of DIPswitches on
the front of the D64RPBH13. The factory setting of all DIPswitches is LEFT (L).
Position 1 - 4:
These four DIPswitches (1, 2, 3, & 4) are assigned to Ground Fault TRIP DELAY settings.
Position 5 - 8:
These five DIPswitches (5, 6, 7, 8, & 9) are assigned to Ground Fault TRIP LEVEL
and TRIP INHIBIT LEVEL settings.
Position 10:
This DIPswitch is reserved for use in the D64RPBH15 relay
Position 11:
This DIPswitch is assigned to TRIP INHIBIT MODE.
Position 12:
This DIPswitch is assigned to Output Circuit Breaker OPERATING MODE.

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D64RPBH13 SERIES B1 GROUND FAULT RELAY
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2.2.1 GROUND FAULT TRIP DELAY
The ground fault TRIP DELAY time range is 25 milliseconds - 1.00 second. Table 1 provides a listing of
the TRIP DELAY settings, which can be made with DIPswitches 1 through 4 on the 12 Position Array.
The Trip Delay begins when the ground fault trip level setting is reached or is exceeded.
Table 1: Ground Fault Trip Delay
DIPSWITCH
SETTINGS
TIME DELAY
IN
MILLISECONDS
1
2
3
4
L=LEFT
R=RIGHT
L
L
L
L
*
2
5
L
L
L
R
65
L
L
R
L
100
L
L
R
R
130
L
R
L
L
160
L
R
L
R
190
L
R
R
L
225
L
R
R
R
255
R
L
L
L
375
R
L
L
R
500
R
L
R
L
625
R
L
R
R
750
R
R
L
L
875
R
R
L
R
1000
* Factory Setting
Set the ground fault TRIP DELAY to provide the desired delay before the output relay will trip when the
ground fault TRIP LEVEL setting is reached or exceeded.
The setting should be selected to co-ordinate with other ground-fault devices connected on the same
transformer secondary: set shorter than upstream devices; set longer than downstream devices. If no
other ground-fault devices are connected, set for the shortest time.
2.2.2 GROUND FAULT TRIP LEVEL
The ground fault TRIP LEVEL range is either 50 - 1200 Amps when using the special Eaton’s Cutler-
Hammer C311CT zero sequence current transformer with a turns ratio of 10000:1 or 2.5 – 60 Amps
when using the standard family of C311CT zero sequence current transformers with a turns ratio of
500:1. The following table provides a listing of the TRIP LEVEL settings, which can be made with
DIPswitches 5 through 9.
The ground fault TRIP LEVEL setting determines the inhibit level (when inhibit is enabled).

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Table 2: Ground Fault Trip Level
As indicated in the General Description, it is recommended that the ground fault TRIP LEVEL setting be
kept as close to the charging current as possible. This will provide maximum safety for operating
personnel and equipment protection. On resistance grounded systems, the TRIP LEVEL setting should
be set lower than 20% of the Neutral Grounding Resistor let-through current.
If the measured ground fault current exceeds the TRIP LEVEL setting, the output circuit breaker will trip
after the pre-selected TRIP DELAY.
2.2.3 TRIP INHIBIT MODE
TRIP INHIBIT is described under the glossary of terms. The setting of DIPswitch 11 determines if TRIP
INHIBIT is disabled or enabled. This is shown in Table 3.
Table 3: Trip Inhibit Mode
DIPSWITCH
SETTINGS
TRIP
INHIBIT
MODE
1
1
L=LEFT
R=RIGHT
L
* DISABLED
R
ENABLED
* Factory Setting
DIPSWITCH
SETTINGS
LEVELS WHEN USING C311CTs
WITH 500:1 TURNS RATIO
LEVELS WHEN USING C311CTs
WITH 10,000:1 TURNS RATIO
5
6
7
8
9
TRIP LEVEL
IN AMPS
INHIBIT LEVEL
IN AMPS
(When INHIBIT is
Enabled)
TRIP LEVEL
IN AMPS
INHIBIT LEVEL
IN AMPS
(When INHIBIT is
Enabled)
L=LEFT
R=RIGHT
L
L
L
L
L
* 2.5
10
*
50
200
L
L
L
L
R
3
10
60
200
L
L
L
R
L
3.5
10
70
200
L
L
L
R
R
4
10
80
200
L
L
R
L
L
4.5
10
90
200
L
L
R
L
R
5
20
100
400
L
L
R
R
L
6
20
120
400
L
L
R
R
R
7
20
140
400
L
R
L
L
L
8
20
160
400
L
R
L
L
R
9
20
180
400
L
R
L
R
L
10
20
200
400
L
R
L
R
R
12.5
50
250
1000
L
R
R
L
L
15
50
300
1000
L
R
R
L
R
17.5
50
350
10
00
L
R
R
R
L
20
50
400
1000
L
R
R
R
R
22.5
50
450
1000
R
L
L
L
L
25
50
500
1000
R
L
L
L
R
27.5
50
550
1000
R
L
L
R
L
30
100
600
2000
R
L
L
R
R
35
100
700
2000
R
L
R
L
L
40
100
800
2000
R
L
R
L
R
45
100
900
2000
R
L
R
R
L
50
100
1000
2000
R
L
R
R
R
55
100
1100
2000
R
R
L
L
L
60
100
1200
2000
* Factory
Setting
* Factory
Setting

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2.2.4 OUTPUT CIRCUIT BREAKER OPERATING MODE –CONTACT STATE
The two different OPERATING MODES are described under the glossary of terms. The setting of
DIPswitch 12 determines the operating mode of the D64RPBH13 output circuit breaker. This is shown
in Table 4. Use this table when deciding on field connections. The state of the output circuit breaker
contacts is shown in Table 5. Also, refer to the CONNECTIONS section.
Table 4: Output Circuit Breaker Operating Mode
DIPSWITCH
SETTINGS
OUTPUT CIRCUIT
BREAKER
OPERATING MODES
1
2
L=LEFT
R=RIGHT
L
*
NON
-
FAILSAFE
R
FAILSAFE
* Factory Setting
2.3 TAMPER PROOF DIPSWITCHES
Eleven of the twelve DIPswitches are used to program the D64RPBH13. However, to discourage
unauthorized manipulation, the preselected settings can only be changed by going through the
procedure outlined below.
When an attempt is made to change the settings without going through this procedure, the green and
red LEDs start to blink alternately until the switches are returned to their original positions. Should the
switches be left in other than the preselected settings, the preselected settings, being stored in non-
volatile memory, remain valid.
The proper procedure to change settings is as follows:
1. The dipswitches are placed in the new positions (ignoring the blinking LEDs).
2. Within 15 seconds after the last change was made (or control power was applied), the system
is brought in test mode using the local pushbutton, causing the new settings to become active.
Since the system will trip now, changing the settings cannot go by undetected. See section 2.5
for a description of how to invoke test mode.
Note that any trips must be reset before this procedure can be completed.
2.4 INDICATION
There are two LED’s on the front of the D64RPBH13.
- A green RUN LED shows correct operation by slowly flashing (1 s on/ 1 s off) when control
voltage is applied to terminals L+ & N-.
- A red LAST TRIP LED shows short 0.25 s flashes as a code indicating the cause of LAST
TRIP:
- One flash every few seconds means that the ground fault current exceeded the set
G/F Trip Level during the G/F Trip Delay time.. In case the G/F Trip Inhibit function is
enabled, the ground fault current may have exceeded the Trip Inhibit Level (overriding
the G/F Trip Delay time), but in that case the upstream tripping device tripped correctly
within 1.2 s and after the current dropped to zero as a result of that, the D64RPBH13
activated its output circuit breaker to isolate the faulty circuit. This trip is labelled
Ground Fault.

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- Two .25 s flashes every few seconds means that the ground fault current exceeded
the Trip Inhibit Level but the upstream device failed to trip during 1.2 s. The
D64RPBH13 then tripped as a last resort. The contactor should be replaced since its
contacts may well be damaged. This trip is labelled Inhibit Backup.
- Four 0.25 s flashes every few seconds means that the connection of the external CT is
open circuited. Note that the trip is latched until reset; therefore intermittent failures will
be captured, overcoming the impression that the D64RPBH3 tripped without cause.
This trip is labelled CT Open Circuit.
- Five 0.25 s flashes every few seconds means that control voltage was lost while the
D64RPBH13 was in the Failsafe operating mode. The RESET pushbutton must be
pressed before restoring control voltage to activate this indication.
- Continuous 0.25 s flashes indicate an extra ‘trip failed’ alarm state on top of one of the
possible trips described above. Following the operation of the output circuit breaker,
measured ground fault current remained at a high level. When the local reset button is
first pressed, the trip is not reset, but the ‘trip failed’ alarm state is. As a result the red
LED will now show the original cause of trip. This alarm is labelled Trip Failed.
Please note that the red LED is a convenient indicator only. It does not affect the operation of the output
circuit breaker. After a fault is cleared, the user may or may not decide to reset the LED. A subsequent
fault will cause the indication to be updated in either case.
2.5 G/F TEST - RESET
2.5.1 G/F TEST INTERNAL
Double-clicking the built-in RESET – TEST pushbutton invokes a test which switches an AC voltage
onto the processor’s CT sensor input. The voltage is scaled to simulate a Ground fault current of 1.5
times the G/F trip level set point. The output circuit breaker will trip on G/F after the set delay (plus 0.4 s)
and the AC test voltage will be switched off. The red LED will turn on solid. This proves that the internal
electronics and output circuit breaker are functioning. Optionally, pressing the reset button again will
reset the red LED enabling the green RUN LED. Reclose the circuit breaker (Normal position). No
external power supply is required.
2.5.2 G/F TEST EXTERNAL
Provision is made for external testing if required. Refer to Figure 1. Select a momentary contact single
pole normally closed pushbutton rated at least 3 Amps at 10 Volts ac. Connect as shown in Figure 1.
When pressed the circuit to the external CT is opened. This results in a trip and the red LED will flash
four 0.25 s flashes (CT Open Circuit). This proves that the current transformer is connected and the
windings are okay, the CT monitor's detection circuit is operating, and the internal electronics and output
circuit breaker are functioning.
A “Test Record Form” is included in this instruction manual. This form provides spaces to record the
date the test was performed and the results. Those in charge of the building’s electrical installation
should retain the form in order to be available to the authority having jurisdiction.
2.5.3 RESET
The built-in RESET – TEST pushbutton is used to optionally reset the red LAST TRIP LED in the
D64RPBH13.
The external pushbutton cannot be used to reset the red LAST TRIP LED.

PUB 50413
D64RPBH13 SERIES B1 GROUND FAULT RELAY
Revision 2
September, 2009 Page 10
2.6 MEMORY AFTER LOSS OF CONTROL VOLTAGE
When control voltage is removed from the D64RPBH13, the LAST TRIP registration will be memorized
(for at least one week). Pressing the Reset pushbutton before restoring control voltage will light either
the green LED or the red LED, green indicating no trip was registered and red indicating the opposite.
The green LED will light continuously, whereas the red LED will give a sequence of short flashes as
described in section 2.4 indicating the cause of trip. Please note that if the D64RPBH13 is operated in
the Failsafe mode (see section 2.2.4), and there was no trip when control voltage disappeared, the
system will still activate the trip register and trip the output circuit breaker at the very moment of losing
voltage. If this is what happened, the red LED will show five consecutive short flashes, meaning ‘relay
was merely activated because control voltage was lost while operating in Failsafe mode’.
The LAST TRIP registration is written to non volatile memory at the moment the D64RPBH13 powers
down. This way the trip code is accessible -by pressing the RESET button- even without control voltage
present, which is particularly helpful when the tripping of the relay also causes control voltage to
disappear. However, there is a very limited amount of backup power stored internally to support this, so
the number of red flashes must be verified at the very moment when the button is being pressed.
The backup power will hold for days as long as it is not exhausted by the pressing of the button.
3. INSTALLATION INSTRUCTIONS
Place the D64RPBH13 in a clean dry enclosure. Try to keep the exposure to mechanical shock and
vibration to a minimum. The internal electronics have been encapsulated in epoxy to improve the
performance in high vibration environments.
Locate the relay close to the isolating device (circuit breaker or contactor) which is protecting the circuit
being monitored.
Provide maximum clearance between both the D64RPBH13 and the C311CT and any strong magnetic
flux producing devices such as power transformers, autotransformers, control transformers, reactors,
and high power conductors and buswork.
3.1 MOUNTING
Refer to Figure 2 for mounting dimensions of the D64RPBH13 relay. It is designed for through-the-door
or rear panel mounting.
3.1.1 THROUGH-THE-DOOR
Four 4 mm (5/32") holes in the flanged cover of the relay permit bolting to the door using suitable
hardware.
A 102 mm high (4.0") x 72 mm wide (2.85") cut-out is required in the door.
Remove the pull-apart terminal block from the relay to permit the relay to be inserted through the cut-
out. From the front of the door, insert the relay through the cut-out. Mount the relay cover to the front of
the door using the customer supplied mounting hardware (four bolts, washers and nuts).
3.1.2 REAR PANEL
The relay may be mounted with either mounting screws or 35 mm DIN rail.
Two #8-32 x 3/4" (M4 x 20) mounting screws are required for screw mounting.
For DIN rail mounting, the rail should be bolted to a flat surface. Install the DIN rail vertically. Allow at
least 1" (25.4 mm) of rail to extend beyond each end of the relay. Install a stop block on the DIN rail 1"
(25.4 mm) from the bottom to keep the D64RPBH13 in position. Secure the relay to the DIN rail
ensuring the white release latch at the left side of the relay engages the rail.