951161 - ESAB 20uF 120V MetPoly Capacitor Replacement

Precision Electronic Repair Component for ESAB Equipment

The ESAB 951161 Capacitor is a critical electronic component designed for the maintenance and repair of specific ESAB welding power sources and auxiliary equipment. Engineered with Metallized Polyester (MetPoly) film technology, this capacitor offers a capacitance of 20 microfarads (µF) and is rated for a working voltage of 120 Volts AC (VAC). Metallized polyester capacitors are renowned in the industrial electronics sector for their excellent self-healing properties. In the event of a microscopic dielectric breakdown caused by a transient voltage spike, the metallized layer vaporizes around the fault, effectively isolating it and allowing the capacitor to continue functioning without catastrophic failure. This feature is particularly vital in the harsh electrical environments often found in heavy industrial welding operations.

Reliability is paramount when servicing industrial machinery. The ESAB 951161 is manufactured to strict tolerances to ensure it meets the precise electrical characteristics required by ESAB's engineering standards. Unlike generic capacitors that may drift in value over time or suffer from high dissipation factors, this OEM component maintains stable capacitance and low internal heating. It is commonly utilized in AC control circuits, motor run applications within wire feeders, or power factor correction stages where consistent AC voltage handling is required. The robust construction ensures resistance to vibration and thermal cycling, common stressors in workshop environments.

Technicians and maintenance engineers choosing the ESAB 951161 can expect a component that fits perfectly into the designated mounting footprint, eliminating the need for lead modification or physical adaptation. By using genuine ESAB parts, you preserve the integrity of the equipment's original design, ensuring that timing circuits, motor torque characteristics, and power filtration operate exactly as intended. This capacitor represents a small but essential investment in the longevity and uptime of your high-performance welding assets.