The detectors IP 103-1B are designed for use in chemical, oil and gas and other industries, on marine vessels to give notice of fire when the temperature of the controlled environment above the permissible.
Detectors ?? 103-1? have one or two thermorelays with normally closed contacts. The detectors are designed for use in hazardous areas of 1, 2 classes, as well as in hazardous areas of all classes in accordance with the "Rules for Electrical Installations" (PUE) ch. 7.3 and other regulatory and technical requirements. 7.3 and other normative and technical documents defining the use of electrical equipment in explosive environments.
Detectors with a stainless steel head can be manufactured under the technical supervision of the Russian Maritime Register of Shipping. Such detectors are labelled with the additional letter code MR.
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