Single Run Capacitor, Oval, 45/440 uF

Mars 12948 – 45 MFD Oval Motor Run Capacitor, 440V The Mars 12948 is a 45 microfarad (µF) oval run capacitor rated for 440 volts AC. It is designed for continuous-duty operation in single-phase HVAC motors, including condenser fans, blowers, and air handler units. This component provides reliable electrical support to improve motor efficiency and power factor under load. Technical Specifications: Capacitance: 45 µF (±6%) Voltage Rating: 440 VAC Frequency: 50/60 Hz Operating Temperature: -40°C to +70°C Case Material: Aluminum Dielectric: Metallized polypropylene film Case Style: Oval Case Height: 4.25" Width: 2.806" Terminals: 4 quick-connect Internal Interrupter: Yes (pressure-sensitive) Non-PCB: Yes Functional Overview: Suitable for permanent split capacitor (PSC) motor circuits requiring 45 µF at 440V Supports continuous operation in high-cycling environments common in HVAC applications Built for system compatibility in residential and light commercial systems Manufactured to meet or exceed EIA-456A performance standards for run capacitors Safe design includes internal pressure interrupter for overload protection Installation Guidelines: Before installation, ensure power to the unit is disconnected and any previously installed capacitors are properly discharged. Verify that capacitance and voltage specifications match equipment requirements. Installation should comply with NEC and local codes. Recommended for use by qualified HVAC professionals.