Upon wiring three-phase voltage (180-600 VAC) to the ICM401A and connecting 24 VAC single-phase voltage to the Y and C terminals, the control will continuously monitor the three-phase line for phase loss and phase reversal. If all voltage conditions are within the specified range, a green light will illuminate on the ICM401A and the Y-out terminal will be energized with 24 VAC. Upon a phase loss or a phase reversal, a red fault light will illuminate on the ICM401A indicating a fault is presently occurring and the Y-out terminal will be de-energized. Once the fault is no longer present and providing the 24 VAC control voltage is still applied at Y and C, the ICM401A will automatically re-energize the Y-out terminal.

ICM™ 3-Phase Monitor, 180-600 V, 6 A, 50/60 Hz, 3-1/4 in L x 3 in W x 1 in H, Specifications: 18-32 V Control Voltage, SPST Output

• The ICM401A offers affordable protection against phase loss/reversal and unbalance
• Low cost 3 ph protection for single-side
• Monitors for phase reversal, phase loss and unbalance % as a function of input voltage
• Bright LED indicators for On and Fault
• Epoxy encapsulated for moisture protection