SUPCO
SUPCO CD45+15X370 HVAC Control 45+15 MFD 370V Oval
Dual-run capacitor powers compressor and fan motors with 45 + 15 MFD at 370 volts in an oval steel case
- Voltage370
- Dual run capacitor powers both compressor and fan motors from one component
- 45 + 15 MFD at 370 volts matches common HVAC replacement specifications
- Physical interrupter and non-PCB biodegradable oil provide built-in safety and environmental protection
- Drawn steel case with quad blade terminals ensures durable mounting and secure connections
- UL and VDE agency listings confirm compliance with recognised safety standards
HVAC Motor Oval Dual Run Capacitor
This SUPCO CD45+15X370 is a dual run capacitor designed for HVAC compressors and fan motors. It combines 45 MFD for the compressor and 15 MFD for the fan in a single oval case rated at 370 volts. Professional technicians use it as a direct replacement for Packard POCD4515A and Mars 12837 parts in air conditioning and refrigeration systems.
Sustained Load Behaviour
The capacitor operates reliably across a wide temperature range from -40 to 185 degrees Fahrenheit, or -40 to 85 Celsius. Its non-PCB biodegradable synthetic oil maintains dielectric performance during continuous duty cycles in condenser units and furnace blowers. A built-in physical interrupter disconnects the element internally if pressure rises excessively, preventing case rupture during prolonged thermal stress.
Interface Practical Limits
The oval drawn-steel case measures 2.8125 by 4.9375 by 1.75 inches, with terminals adding approximately half an inch to the installed height. Three terminal sets labelled Fan, Herm, and C accept quad-blade quick-connect leads for secure attachment. Capacitance tolerance is held to plus or minus five percent, and the unit carries UL and VDE agency recognition for 370-volt AC motor-run applications.
Highlights
- Dual run capacitor powers both compressor and fan motors from one component
- 45 + 15 MFD at 370 volts matches common HVAC replacement specifications
- Physical interrupter and non-PCB biodegradable oil provide built-in safety and environmental protection
- Drawn steel case with quad blade terminals ensures durable mounting and secure connections
- UL and VDE agency listings confirm compliance with recognised safety standards
Specifications
| Brand | Supco |
|---|---|
| Model | CD45+15X370 |
| Voltage | 370 |
Questions about this item
How much heat can the CD45+15X370 handle during continuous daily operation?
The capacitor is rated for an operating temperature range of -40 °F to 185 °F (-40 °C to 85 °C), so it will tolerate the heat inside an air-conditioning or furnace cabinet running all day.
What wiring and terminals must my system already have to install this dual run capacitor?
Your equipment needs three sets of quick-connect terminals labelled Fan, Herm and C to match the capacitor’s quad-blade terminals and Type Two terminal layout.
Will the oval CD45+15X370 fit in the same bracket as my old Packard POCD4515A or Mars 12837 capacitor?
Yes — it is a direct replacement for both the Packard POCD4515A and Mars 12837, sharing the same oval dimensions of 2.8125″ × 4.9375″ × 1.75″ plus ½″ for the terminals.
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