3
Connecting Relay Loads
LittKttptr® 8
Latching Relay Card Wiring
The latching relay is a simple closure, breaking the line and
load wires of a normal circuit. To wire the relay into the
control circuit:
1. Connect a 120, 277 or 347 volt, 20 amp maximum,
de-energized branch circuit breaker to the relay
terminal block.
2. Connect the load wiring to the output terminal block.
otte:
N
Terminal blocks are not polarity sensitive although it
is recommended that line and load be brought into
terminal blocks in the same manner for consistency.
3. Tighten down relay terminal screws. Manufacturer’s
recommended torque rating is 18 lb-in.
(1.475 foot-lbs) (2.0 Nm).
4. Document relay to circuit information for
future reference.
Q1
U1
U2
U3
SR1
RP1
RP2
K8
K6
K2
K4
MOV 2
MOV 4
MOV 6
MOV 8
Q2
RN1
TB2
TB4
TB6
TB8
LED 1
Latching Relay Card Wiring
Modular Relay Card Notes
The Modular Relay Card provides flexible options for relay
control. It is designed to allow modular relay control by
allowing you to install a variety of relay module types on
the same relay card. Current available relay module types
include a Two Pole Relay Module (TPRM) Normally Open,
the Latching Relay Module (LRM) and the Standard
Relay Module (SRM).
K1
MOV1
TB1
U1
RP1
R4
R4
RP1
U1
TB1
MOV1
K1
MOV1
TB1
K1
Modular Relay Card
Standard Relay Module
1. The Standard Relay Module is rated for single-pole
load use only. Connection of 2 pole circuits/loads to
the Standard Relay Module will void the equipment
warranty and may result in severe injury or death, and/
or damage to the equipment.
2. Relay ratings are 120 or 277 volt, 20 amp maximum.
3. Relay terminal blocks have a maximum limit of
10AWG wire.
4. The SRM contains an LED indicator that will be lit when
the relay is commanded by the control panel to be in
the closed position.
Standard Relay Module (Modular Relay Card)
From Branch Circuit
Line
Line
Line 1
Line 2
Modular Relay Card
Wiring Diagram
LRM
SRM
TPRM
Relay Status
Indicator LED
Wiring Terminal
Block
Relay Slot Pin Connector:
Please note relay number
location for programming
purposes.
SRM
Relay Wiring
Wire: 6 AWG Max.
Relay Rating: 20amps, 347V
To Lighting Load
Load
Load
Load 1
Load 2
Relay Rating: 20Amps
208/240/480 VAC
Wire: 6 AWG max.
Relay Rating: 20Amps
120/277 VAC
Wire: 10 AWG max.
Relay Rating: 20Amps
120/277/347 VAC
Wire: 6 AWG max.
