Ceramic PTC Disk for Overload Relay Protection
Large ceramic PTC heating disk for bimetallic overload relays classified in HTS 8536.30.40. Self-heats to trip relay mechanism when motor current exceeds safe levels. Provides both electrical and thermal protection reactivity.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If primary function deemed electric heating rather than protection
Heating resistors classify under electro-thermic apparatus
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Import Tips & Compliance
• Power dissipation ratings and thermal profiles needed; OEM relay assembly drawings confirming fit; prevent classification as heating element under 8516
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