put is energized, and an illuminated red LED indicates that there is a fault
and the output is de-energized.
Specifications
Input
Line Volyage: 190-600 VAC
Frequency: 50/60 Hz
Control Voltage
ICM402: 115/230 VAC
ICM401: 18-30 VAC
Output
Relay: SPST
ICM402: N.O. 30 amps
ICM401: N.O. 10 amps
Mechanical
Dimensions: 3.0 x 3.2 x 1.4
The ICM402 is a low cost 3-phase line monitor, with a 30 amp output that
protects against phase loss, phase reversal and phase unbalance. Ideally
suited to protect scroll & screw compressors from reverse rotation.
Features
Low cost, single side 3-phase protection
30 amp output
Bright LED indicators for fault and load energized
Easy to install, no adjustments
Wide operating range: 190-600 VAC
Less than 1 second phase loss response
Automatic reset from a fault condition
Compact packaging: fits almost anywhere
Rugged, epoxy-encapsulation for extreme
conditions
Works great with the ICM450 for load side
monitoring of part winding start motors and
multiple compressor systems
Wiring Diagram
230
VAC
115 VAC
Thermostat
Y Y-OUT
C
115
VAC 230
VAC
FAULT
ON
115/230 VAC
CC
LOAD
F
U
S
E
F
U
S
E
F
U
S
E
*
*
*
* 1 amp fast blow fuse
L1
L2
L3
CUT WIRE
FOR 50 HZ ICM402 Typical Wiring Diagram
115 VAC
Thermostat
Contactor
Compressor
230 VAC
Transformer
NOTE:
* Voltage-rated (1 amp fast blow) fuses
Typical Part Winding Start Wiring Diagram with an ICM450 and ICM402
NOTE:
This diagram is also applicable to ICM400 with
auto-man reset mode switch.
* Voltage-rated (1 amp fast blow) fuses
** Use ICM402 for 115/230 VAC Control voltage only
ICM402
ICM450
6
4
3
1
LINE
0A
LINE
0B
LINE
0C
LOAD
0C
LOAD
0B
LOAD
0A
*
FUSE
*
115/230 VAC
COM
L1
L3
L2
*
*
*
CC1
CC2
Aux.
Delay
0A
0C
0B
Thermostat
Pressure
Switch
Control Voltage Transformer
PWS motor with 3 -phase monitor and single side monitor
*
FUSE
FUSE
FUSE
FUSE
FUSE
Y-OUT
Y
*
*
*
FUSE
F
U
S
E
F
U
S
E
F
U
S
E