Single Run Capacitor, Oval, 30/440 uF

Jard 30 MFD 440V Oval Run Capacitor – High-Reliability Component for HVAC Motor Circuits

The Mars 12941 – Jard 30 MFD Oval Run Capacitor is engineered for continuous-duty operation in HVAC motor applications requiring consistent performance and durability. Designed to support permanent split capacitor (PSC) motors, this component delivers steady capacitance under variable load conditions and is well-suited for fan motors, blowers, and air-moving assemblies.

Built to meet professional standards, the 12941 model features a non-PCB oil-filled dielectric system enclosed in an oval aluminum can. It is UL-recognized and incorporates an internal pressure interrupter for thermal overload protection, enhancing safety in the field.

Capacitor Attributes

• ✅ Rated Capacitance: 30 microfarads (µF), ±6% tolerance
• ✅ Rated Voltage: 440 VAC – suitable for high-voltage single-phase systems
• ✅ Case Style: Oval aluminum shell with standard quick-connect terminals
• ✅ Safety Feature: UL 810 compliant pressure-sensitive interrupter for arc prevention
• ✅ Dielectric: Non-PCB oil-filled construction

Technical Specifications

• Frequency: 50/60 Hz
• Operating Temperature: -40°C to +70°C
• Dimensions: Approx. 3.5 inches height × 2.806 inches width × 2.056 inches depth
• Terminal Configuration: Dual quick-connect terminal sets (4 total lugs)
• Case Material: Corrosion-resistant drawn aluminum

Installation Guidelines

This run capacitor is intended for fixed-position installation within HVAC enclosures. Contractors should verify that capacitance and voltage ratings match system requirements before replacing any motor capacitor. Always discharge the existing capacitor and isolate power at the breaker panel prior to installation. Use insulated terminal connectors and torque terminals per OEM specification to ensure electrical integrity.

Professional Applications

• ✅ Residential condenser fans and blower assemblies
• ✅ Commercial package units with 440V motor circuits
• ✅ Indoor and outdoor air handling equipment

Contractor-Focused Performance

The Jard 12941 offers consistent microfarad delivery and thermal durability for prolonged operational life. Its precision windings and tested dielectric strength make it a dependable replacement part across a wide range of OEM systems. Technicians can confidently install this capacitor knowing it meets rigorous mechanical and electrical reliability standards in the HVAC industry.

Summary

The Jard 30 MFD 440V Oval Run Capacitor (Mars 12941) is an ideal solution for HVAC professionals requiring a robust, field-proven run capacitor. Designed with long-term service in mind, it provides stable power for motor start and run applications where high voltage support and compact form factor are needed. This component is a dependable choice for commercial and residential jobs alike.