Model: 81D921
Thermal Release HeaterProperties:
A resistive element which dissipates sufficient heat to melt the fusible material or distort the bimetallic element of an overload protective device when the temperature, as a result of an overload in an electrical circuit, reaches a predetermined value. Excludes coil (as modified); heating element, electrical; resistance element; resistor, thermal; thermal release, circuit breaker; and items with integral bimetallic element, contacts, or fusible material.
Part 81D921 NSN 5999-00-503-1630
Material Classification
Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicatorsPackaging & Shipping
Freight Classification
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Schedule B and Export
- Schedule B: 8543909000
- SITC: 77879
- End Use: Electric apparatus
- NAICS: 335999
- USDA: 1
Freight Class: Electrical machines and apparatus parts, nesoi
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