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Cylindrical metal capacitor 1.75 by 2.75 inches with quad blade terminals

SUPCO

SUPCO CR20X370R HVAC Control 20 MFD 370 VAC

SKU CH-K0G4-6EAS9 MPN CR20X370R

Round run capacitor rated 20 MFD at 370 VAC with UL and VDE agency listings

  • Voltage370
  • 20 MFD 370 VAC rating powers compressors and fan motors reliably
  • UL and VDE listings confirm safety compliance for HVAC service
  • Physical interrupter and non-PCB biodegradable oil protect against failure
  • 75 by 2.75 inch drawn steel case fits standard mounting brackets
  • Quad-blade quick-connect terminals speed installation on Packard PRC20 and Mars 12714 replacements

20 MFD 370 VAC Round Run Capacitor

This Supco CR20X370R is a 20 MFD 370 VAC round run capacitor built for HVAC motor circuits. It suits air conditioning compressors, refrigeration compressors, furnace blower motors and condenser fan motors. The drawn steel case measures 1.75" x 2.75" and uses non-PCB biodegradable synthetic oil. A physical interrupter adds a safety layer during fault conditions.

Check voltage rating and capacitance match

Before ordering, verify that the existing motor nameplate calls for a 370 VAC rating and a 20 MFD value with a +/- 5% tolerance. Confirm the mounting footprint fits a 1.75" x 2.75" round case and that the quad blade quick connect terminals match the wiring harness. The operating temperature range spans -40 to 185 degrees F (-40 to 85 C), so ensure the installation environment stays within those limits. Agency listings include UL and VDE.

Steady operation within rated temperature

Under sustained load the capacitor maintains its 20 MFD rating across the full -40 to 185 degrees F operating window. The synthetic oil fill and steel case construction dissipate heat continuously without relying on short burst capacity. The internal physical interrupter activates only if pressure exceeds design limits, protecting the circuit during prolonged stress. Replacement cross references cover Packard PRC20 and Mars 12714.

Highlights

  • 20 MFD 370 VAC rating powers compressors and fan motors reliably
  • UL and VDE listings confirm safety compliance for HVAC service
  • Physical interrupter and non-PCB biodegradable oil protect against failure
  • 75 by 2.75 inch drawn steel case fits standard mounting brackets
  • Quad-blade quick-connect terminals speed installation on Packard PRC20 and Mars 12714 replacements

Specifications

BrandSupco
ModelCR20X370R
Voltage370

Questions about this item

Does the CR20X370R include mounting hardware or only the capacitor itself?

The Supco CR20X370R is supplied as the round run capacitor only; mounting brackets, straps or screws are not included and must be sourced separately.

Should I choose the 20 MFD 370 VAC version or a different capacitance for my compressor?

Select the 20 MFD 370 VAC model only when the equipment nameplate specifies exactly 20 microfarads at 370 volts AC; using a different capacitance will alter motor torque and can cause overheating.

What does the 370 VAC rating mean once the capacitor is installed in my condenser fan motor?

The 370 VAC rating is the maximum continuous RMS voltage the capacitor can withstand; the motor circuit must never exceed this value, otherwise the internal safety interrupter will disconnect the element.

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