Nippon Hakuyo Electronics NHE-Oki 4375-OKB Fixed Temperature Heat Detector 55degC The Nippon Hakuyo Electronics NHE-Oki 4375-OKB is a low profile conventional fixed temperature heat detector, Class A2S 55degC - EN54. NHE-Oki 4375-OKB marine fixed temperature heat detector detects abnormally high (static) temperature and provides a fast response that depends on the absolute temperature reaching 55°C. 4375-OKB rated voltage/current DC24V / 40mA. Quiescent current 0.015m and operation voltage range: DC10-30V. Operation temperature range: -25degC to +50degC
