H20,H21 series thermostat’s Principle and structure H20,H21serial universal and enhanced protectors with large metal casing are composed of the thermal conductive metal casing, bimetallic parts welded ...Xem thêm
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BW9700 Motor Thermal heat Protector fuse Pump temperature thermal switch Certificated UL TUV CQC KC 250V 5-16A 30-150C