Allen Bradley 81001-956-53-R Snubber Resistor Assembly
The Allen-Bradley 81001-956-53-R is a high-wattage Snubber Resistor Assembly engineered for transient voltage suppression within high-power VFD (Variable Frequency Drive) and inverter stages. Specifically hardware-tuned to a 53Ω (±10%) resistance value, this P/N functions as the core dissipative element in RC snubber networks.
In terms of thermal engineering, the 81001-956-53-R is rated for 500W continuous dissipation, with a massive 5kW surge capacity for 10-second intervals. This power-to-weight ratio (net weight 1.2 kg) is critical for absorbing the repetitive energy bursts found in heavy-duty industrial motor control centers. The assembly's physical footprint--25 x 20.7 x 5.5 cm--is optimized for direct mounting within legacy Allen-Bradley drive frames, ensuring that the low-inductance resistive path is maintained for superior electromagnetic interference (EMI) mitigation and circuit stability under peak load.
For maintenance teams managing obsolescence cycles, this USA-made OEM assembly is a mandatory "critical spare" to prevent catastrophic drive failure. While manufactured in the USA, current stock is dispatched via the Xiamen, China logistics hub to provide global industrial sites with expedited shipping and reduced lead times for "Plant-Down" emergencies.
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