Mars 12919 – 2.5 MFD 440V Oval Run Capacitor (Replaces 12019)
The Mars 12919 single run capacitor is designed for continuous-duty operation in HVAC equipment that utilizes permanent split capacitor (PSC) motors. Rated at 2.5 microfarads (MFD) with a voltage capacity of 440 VAC, this capacitor provides reliable support for fan motors and other fractional horsepower components in air conditioning and refrigeration systems.
Its oval aluminum case allows for installation in compact or space-restricted enclosures. This model replaces Mars part number 12019 and meets performance requirements for OEM-equivalent applications.
Product Specifications
Capacitance: 2.5 µF (microfarads)
Voltage Rating: 440 VAC
Shape: Oval
Frequency: 50/60 Hz
Case Material: Aluminum
Fluid Type: Oil-filled, non-PCB
Safety Feature: Built-in pressure-sensitive interrupter
Operating Temperature Range: -40°C to +70°C
Mounting Style: Standard clamp or strap-mount
Applications
Used in PSC fan motors and condenser fans
Compatible with residential and light commercial HVAC systems
Designed for systems requiring a 2.5 MFD, 440V run capacitor
Direct replacement for Mars 12019
Installation Guidance
Installation should be performed by a qualified technician. Always verify that voltage and capacitance values match equipment requirements. Discharge the existing capacitor prior to removal and confirm secure terminal connections during replacement. This unit is intended for upright or horizontal mounting in standard HVAC cabinets.