Projoy Electric PEFS User guide

Thank you for choosing PROJOY products.
Please read carefully before installation.
PROJOY PEFS
FIREFIGHTER SAFETY SWITCH
Instructions for Installation and Operation
General Notice
1. Changes or modifications not explained/approved in this manual voids your authority to
operate this equipment.
2. PROJOY shall not be held responsible for any damage caused due to incorrect installation
of the product and/or the misunderstanding of this manual.
3. PROJOY reserves the right to make any modification to this manual or the information
contained herein at any time without notice.
4. No design data such as sample pictures provided in this manual may be modified or
duplicated except for the purpose of personal use.
5. To ensure the recycling of all possible materials and proper disposal treatment of compo-
nents, please return the product to PROJOY at end-of-life.
6. Check the system regularly (once per 3 months) on faults.
Important Safety Precautions
Components in the installations are exposed to high voltages and currents. Follow these
instructions carefully in order to reduce the risk of fire or electric shock.
The following regulations and standards are considered applicable and mandatory to read
prior to the installation of electrical equipment:
1. International Standards: IEC 60364-7-712 Electrical installations of buildings-Require-
ments for special installations or locations-Solar Photovoltaic (PV) power supply systems.
2. Local building regulations.
3. Guidelines for lightning and overvoltage protection.
Note!
1. It is essential to uphold the limits for voltage and current in all possible operating conditions.
Also keep in mind the literature on correct dimensioning and sizing of cabling and compo-
nents.
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Intended Use of the Firefighter Safety Switch
The Firefighter Safety Switch (PEFS) has been especially developed as a safety device for
direct current (DC) photovoltaic installations. The DC disconnect switch is used to discon-
nect the connected strings of the installation in case of an emergency situation. Such an
emergency situation could be in case of fire.
Location of the Firefighter Safety Switch
The PEFS needs to be placed as close to the solar panels as possible. Due to its enclosure,
the switch is protected against external influences like dust and moisture. The whole set-up
is conforms to IP66 which makes it suitable for outdoor usage when needed.
NOTE: The switch enclosure may not be installed in direct sunlight or be in direct
contact with (continuous) ingress water.
Normal operation:
The PEFS will automatically switch to the off position, breaking the DC connection between
the solar panels and the inverter, after the AC power to the PEFS is interrupted for longer
than five seconds. The PEFS will automatically switch to the on position, restoring the DC
connection between the solar panels and the inverter, once the AC power to the PEFS is
restored longer than five seconds.
Special Operation
If the temperature inside the PEFS enclosure exceeds the 70℃, the PEFS will automatically
switch to OFF to protect the internal components and create a safe situation. When the
installation is checked and the PEFS is not affected, the PEFS can be switched ON again
by removal and re-applying the AC voltage to the PEFS. The PEFS will also automatically
switch to OFF if there is an internal failure. If this occurs please try to reset the PEFS by
removal and re-applying the AC voltage to the PEFS.
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2. The installation of these devices may only be performed by certified technical personnel.
3. The wiring schematics of the Firefighter Safety Switch can be found at the end of this
manual.
4. All the installation works should be tested in accordance with relevant local legislation at
the time of installation.

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1. Kit with knock outs, 5 x M12 (1 String) or 9 x M12 (2 Strings).
2. Kit with cable glands, 5 x M12 (1 String) or 9 x M12 (2 Strings).
3. Kit with pre-wired 4 x BC03D connectors (1 String) or 8 x BC03D
connectors (2 Strings) and 1 x M12 cable gland for AC.
Note: The outer diameter of cable is (3mm~7.5mm)
WIRING OPTIONS

Installation Requirements
Open the box, take out PEFS, read this manual, and prepare cross/straight
screwdriver.
Remove the 4xM4 screws with cross screwdriver, open the lid.
Remove the lid from the enclosure.
Mount the switch enclosure on the wall.
Note: The screw is M8
self-tapping screw.
M4
4
INSTALLATION

Wire the power AC connection to the terminals.
Note: FB1, FB2 are used to remotely display the on and off states of the switch.
When the switch is closed, FB1 is connected to FB2; when the switch is open,
FB1 is disconnected from FB2.
The enclosure needs to add a M12 cable gland if the remote display function is
needed.
5
FB1
(option)
(AC Cable: MAX. 0.75 mm²)
CN4
FB2 PE N L
FB1 FB2 PE N L
M
MCU-CONTROL
DR
External power
Indicator light
AC distribution box
PEFS
Monitoring room
Note:
External power: +5~48V，＞150mA
Resistance: metal shell，＞10W
Resistor is selected according to supply voltage, to ensure circuit current less
than the rated current of the Indicator light and ＜320mA
Resistance
FB1 FB2 PE N L
AC Current: 30mA
Operating voltage: 100Vac - 270Vac

Wire the string cables to the interface.
Wire the string cables (DC) to the switch.
Note: Please follow the marks (1+, 1-, 2+, 2- ) for PV wiring.
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MAX. 1.7Nm
!
Close the switch enclosure with cross screwdriver.

Step 3. Deactivate AC power circuit. PEFS will switch off in about 7 seconds.
Red LED light off.
Step 4. Activate AC power circuit. PEFS switches on in 8 seconds.
Red LED light on.
Step 5. Test is completed.
E-mail: [email protected] Made in China
7
AC POWER OFF
Approx. 7 sec.
AC POWER ON
Approx. 8 sec.
Step1. Activate AC power circuit. PEFS switches on.
Test
AC POWER ON
Approx. 35 sec.
Step 2. Wait one minute. UPS is charging.
Approx. 1 min.
M4(4x) - Max. 1.7Nm
Projoy Electric Co., Ltd.
Tiancheng Times Business Plaza, Xiangcheng District , Suzhou, China
Tel : [phone]
Fax: [phone]
Web: www.projoy-electric.com