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  • Made in USA

ICM ICM866U - Item # - Motor Hard Start, Voltage Sensing w/ high-powered relay output,1/12 to 5HP,145-175 ufd, UL Recognized

Item: ICM866U
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The ICM866U combines the award-winning technology of ICM's Universal Motor Starting Relay with the patented circuitry of the ICM860 for the most precise and reliable hard start kit on the market! Rated for 1/12 to 5HP applications.


  • Patented circuitry with differential voltage sensing technology
    • Monitors differential compressor auxiliary voltage
    • Precisely engages/disengages the start capacitor
    • Not affected by ambient temperatures
    • Recycles instantly
  • Self-adjusting to changes in voltages
    • Does not rely on relay with pre-set, factory default ranges
    • Eliminates guesswork in "tweener" applications
    • Extends motor life
  • Rated for 1/12 to 5HP applications
    • Reduces inventory, saves money
    • One model is all you need
  • Simple, two-wire installation
    • Faster install time
    • Minimizes risk of accidental miswires
  • Multi-voltage operation - 115 or 230 VAC motors
  • 145-175°F @ 330V
  • UL Recognized


  • Voltage: 90-277 VAC
  • Maximum input voltage: 390 VAC
  • Recommended range: 1/12 to 5 HP
  • Operational temperature range: -40ºC to +65ºC
  • Capacitor: 88-106 Mfd., 330V
  • Fused (not user replaceable)


  • Supco: SPP5, SPP6, SPP5E, SPP6E, SPP8E, SPP9E, SPP10E
  • Kickstart: KS1, TO-5, KS8
  • 5-2-1: CSR-U2, CSR-U3
  • Watsco: WSX1
  • Mars: 32708, SS1, SS5, 32703, 32704, 32701, 32702
  • Diversitech: DST-5, DST-6


NameICM ICM866U - Item # - Motor Hard Start, Voltage Sensing w/ high-powered relay output,1/12 to 5HP,145-175 ufd, UL Recognized
BrandICM Controls
Gemaire Item NumberICM866U
Manufacturer Product NumberICM866U
SKU - PIM Number1395692594058
ERP Number338316
Unit of MeasureEA
Weight0.5 Pounds (Lb)
Length1.5 Inches (In)
Width2.3 Inches (In)
Height7.9 Inches (In)
Hazardous MaterialNo
EPA Cert RequiredNo
Country of OriginUSA
Voltage115 or 230 VAC
% Increase In TorqueUp to 300%
Relay TypeDry Contact
ApplicationMotor Starting
FeaturesPatented circuitry with differential voltage sensing. Self adjusting to changes in voltages. Simple Two wire installation
Maximum Coil Voltage240 VAC
TypeMotor Starter
Warranty Offered9 Year
UL RecognizedYes
GEM - Case Quantity


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