PDFT Fire Transfer Relay with EOL Trigger
Alarm Controls Corporation
19 Brandywine Drive
Deer Park, NY 11729
500-33320_A Installation specifications subject to change without notice
Phone: (800) 645-5538
www.alarmcontrols.com
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Features:
Non Latching or Latching mode
12 or 24VDC Operation
Reverse polarity protected
Normally ON & Normally OFF Output
Output LED’s indicate condition
Outputs can be Triggered with:
1. N/O or N/C Switch with Supervised (EOL)
2. N/C Switch with (OVR) over ride
3. N/C Switch with AUX-IN auxiliary
4. Ground on any trigger input when (GRN)
Jumper is enabled
Form C Contacts Indicates Trigger Status
12 Amp Transfer Relay Contacts
Lifetime Warranty - Made in the USA
UL Listed Sub Assembly for Access Control and Burglar Alarm Systems
Description
The PDFT transfers the input power from the normally ON
output pair “-N/ON+” too the normally OFF output pair “-
N/OFF+” when triggered. The unit is triggered when the
supervised (EOL), end of line resistor is opened or shorted.
The triggered form C user contacts indicate the state of the
trigger. A typical application of the PDFT is to place a
distribution board on one or both of the outputs, one of our
power supplies on the Input, then connecting the EOL at a
fire alarm panel to transfer the power from one distribution
board to another when the Fire alarm panel is in the alarm
condition. The transferred power would be used to unlock
doors, shut down air systems, or return elevators to an exit
floor.
Specifications / Instructions
Input Power “-INPUT+”: 2 Pos. Terminal block
with self
clamping screws will accept multiple 12awg wires
– Operates
with 12 or 24vdc input. The input current is 70ma to control
relays plus whatever output load is. The positive side of the
power is connected to the swing arm of the transfer relay
which directs the power to the proper output.
Output Power: 4 Pos. Terminal block
Self clamping screws
will accept multiple 12awg wires. “-N/ON+” are normally ON
output power. This output is ON when the PDFT is not
triggered. “-N/OFF+” is normally OFF. This output is ON
when this unit is triggered. The transfer relay is rated at
15A@12v and 12A@24vdc.
Power LED’s:
A red LED above each output indicates which
output is ON.
Input Trigger EOL: 2 Pos. Terminal block
– Will accept 14-
28awg wire. This input must see the 2.2K ohm end of line
resistor to be in the normal set condition. A change in
resistance of + or – 60% will cause the trigger relays to drop
out in the Triggered mode. This change in resistance is
caused by the supervised wire between the EOL at the Fire
panel and the PDFT being shorted or opened. The EOL
supervises the pair of wires.
Input Trigger OVR: 2 Pos. Terminal block
- Will accept 14-
28awg wire. This pair is normally closed, can be connected
to an override switch. When OVR is open, unit will trigger.
Input Trigger AUX-IN: 2 Pos. Terminal block
- Will accept
14-28awg wire. This pair is normally closed and can be
connected to an auxiliary device. When AUX-IN is open, unit
will trigger.
RESET 2 Pos. Terminal block
– Will accept 14-28awg wire.
When this pair is shorted, input triggers do not latch. If pair is
open, the input triggers will latch until alarm is corrected and
RESET is momentary closed to reset trigger.
Jumpers RST – OVR – AUX
are jumpers with handles to
short adjacent terminal blocks that are not used. You may
move the jumper to one header to open short to enable
adjacent terminals.
Jumper GRN
– This jumper is used to enable ground
supervision in the inputs. If the jumper is connected to both
headers, and the mounting hole adjacent to jumper is
connected to ground with a star washer, a ground on any of
the input triggers will cause a trigger.
Trigger Status Terminal block
- Will accept 14-28awg wire.
Form C Contact with a 3 Amp rating will indicate the
condition of trigger. C and NO are normally open in the
normal energize not triggered state. C and NC are normally
closed in the normal energized not triggered state. These
contacts may be used to provide feedback to the FACP or
other annunciating devices.
Module dimensions
....................... 2.23”W x 3.75”L x .8”H
Mounting holes dimensions
........................ 1.89” x 3.41”
Weight
: ....................................................................... 2.2oz
UL Approvals for PDFT
UL 294 – Access Control System Unit
UL 603 – Power supplies for Use with Burglar-Alarm
Systems ULC S318-96 – Power supplies for Burglar Alarm
Systems ULC S533-02 – Standard for Egress Door Securing
and Releasing Devices.
