P/N: 3101055 REV: 2.0
16DEC07 Installation
Sheet
2 / 2
RELA-SRV-1 Service Disconnect Switch - RELA-ABT Abort Switch
RELA-ABT Abort Switch
The RELA-ABT Abort Switch is a normally open
dry contact device, which is used to stop the
release of an agent. A push button is used to
close the switch and abort the agent release.
Specifications
Voltage and rated average current
30 Vdc at 2 A, 250 Vdc at 1 A, 600 Vac at 3 A
Wire: 12 to 18 AWG
Dimensions: 3.25 x 4.87 x 3.87 in (82 x 124 x 98 mm) (W x H x D)
Installation instructions
To install the RELA-ABT:
1.
Install the ground screw in the back of the back plate assembly.
2.
Place the push button assembly into the octagon shell so that the
threads pass through the back of the shell.
3.
Connect the push button assembly and octagon shell to the back
plate. Pass the threaded portion of the push button assembly
through the back plate and secure it with the lock nut. Make sure
the push button is oriented correctly.
4.
Push the relay holder onto the back of the lock assembly until it
snaps into place. Make sure the releasing lever is pointed up.
5.
Wire the relays. See the “Wiring diagram” for details.
6.
Mount the back plate assembly to an existing single gang
electrical box using the #6-32 screws provided.
7.
Connect the housing cover to the back plate assembly using the
housing screw provided.
Ground screw
Back plate assembly
Back plate mounting
screws
Housing mounting screw
Housing cover
Single gang box
Lock nut
Relay terminal
assembly
Relay holder
releasing lever
Push button assembly
and octagon shell
You may need to remove the relay holder or a relay to make wiring
easier or you may need to install a different relay. Use the installation
instructions that follow to perform these tasks.
To remove the relay holder:
1.
Hold the housing firmly in one hand.
2.
Apply downward pressure on the relay holder releasing lever.
3.
Remove the relay holder and relays.
To remove a relay:
1.
Insert a small screwdriver where the relay connects into the relay
holder.
2.
Pry upward to release the relay from the holder.
Relay holder
releasing lever
To install a relay:
1.
Insert the bottom of the relay in the bottom slot on the relay
holder.
2.
Push upward to lock the relay in place in the top of the relay
holder.
Wiring diagram
A normally open (NO) relay is provided.
Normally
open relay
Releasing
module
Operation
The push button on the RELA-ABT is used to abort (stop) the release
of the fire agent within its controlled area.
Push and hold the “PUSH” button to stop the release of the agent.
When the push button is released, operation is controlled according to
the releasing module’s configuration. If you are using the SIGA-REL
releasing module, refer to the
SIGA-REL Technical Reference Manual
for specific push button operation.