Single Run Capacitor, Oval, 4/440 uF
5 Available At All US Supply Locations
Dependable Operation – Jard 12945 40 MFD 440V Oval Run Capacitor
The Jard 12945 40 MFD Oval Run Capacitor is engineered to support single-phase motors requiring continuous-duty operation in HVAC systems. This capacitor delivers steady electrical charge necessary for maintaining motor efficiency and operational reliability under demanding conditions.
Professional-Grade Performance
Designed to meet the rigorous demands of commercial and residential systems, the Jard 12945 provides consistent capacitance output with high voltage endurance. Its compact oval form factor allows for efficient installation in limited cabinet space, improving workflow on tight job sites.
- ✅ Capacitance: 40 microfarads (MFD) for steady motor torque and phase balance.
- ✅ Voltage Rating: 440 VAC, suitable for high-voltage motor circuits.
- ✅ Construction: Hermetically sealed aluminum case designed for heat and corrosion resistance.
- ✅ Interrupt Protection: Includes a built-in pressure-sensitive interrupter for safe failure prevention.
- ✅ Non-PCB Design: Environmentally compliant dielectric fluid with no polychlorinated biphenyls.
Specifications Overview
- Type: Single-value oval run capacitor
- Voltage Rating: 440 VAC
- Frequency: 50/60 Hz
- Capacitance: 40 MFD ±6%
- Temperature Range: -40°C to +70°C
- Terminal Configuration: 4 quick-connect terminals
- Case Dimensions: Approx. 3.875 in height × 2.056 in width (nominal)
Installation Notes for Contractors
This capacitor is intended for direct replacement of OEM units with equivalent voltage and capacitance ratings. Ensure the mounting bracket supports oval case formats and that terminals are properly labeled before energizing the circuit. Always disconnect line power and verify discharge before handling components.
Field Application Use
The Jard 12945 is suited for blower motors, condenser fan motors, and other continuous-duty applications in HVACR systems. It provides long service life under normal operating conditions and reduces the likelihood of motor startup failure or thermal overload events.
Summary
The Jard 12945 40 MFD 440V Oval Run Capacitor delivers dependable electrical performance, compact form factor adaptability, and rugged construction for HVAC professionals requiring consistent and durable motor support components.
Specifications
| Weight | 0.600000 |
|---|---|
| Length (inches) | 4.9 |
| Width (inches) | 3 |
| Height (inches) | 2.1 |
| Item Type | Capacitors |
| Brand | Mars |
| Capacitance | Single Capacitance |
| Case Height | 3-3/8 in |
| Manufacturer | Motors & Armatures, Inc. |
| MPN | 12945 |
| Frequency Rating | 50/60 Hz |
| Shape | Oval |
| Item Returns | This item can be returned |

