Product Overview

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LIS224
ICM857 ICM858 ICM859
All features and specifications subject to change without notice.
Solid State Relay, Overload and Start Capacitor
For all single-phase
commercial and
domestic capillary
refrigeration systems
and freezers!
This combination relay, overload and start capacitor comes pre-wired for easy and fast installation. It is designed to be used
with compressors having external overload protectors and will replace all 3 of the before-mentioned electrical components
on any capillary refrigeration or air conditioning system; commercial, residential, and industrial. When the thermostat closes,
the start capacitor is temporarily placed in series with the start windings to provide increased starting torque from the
compressor. After compressor start-up, the start capacitor is removed from the system until it is needed again.
Mode of Operation
ICM P/N Voltage Capacitor Size Overload HP Rating Replaces
ICM857
120V 145-175 mfd. 12A 1/12 to 1/5 HP Supco RCO810
ICM858
120V 243-292 mfd. 22A 1/4 to 1/3 HP Supco RCO410
ICM859
120V 243-292 mfd. 30A 1/3 to 1/2 HP Supco RCO210
Ordering Information
Specifications Wiring Diagram
• Operating Voltage: 120V
• Maximum Voltage: 180V
• Maximum Current: 12A
• Retry Time: Within 90 seconds
ICM857
120V, 145-175 mfd.
1/12 to 1/5 HP
ICM858
120V, 243-292 mfd.
1/4 to 1/3 HP
ICM859
120V, 243-292 mfd.
1/3 to 1/2 HP