Thermal motor protection relay 2 changeover contacts - Motor temperature monitor 1 circuits 3RN20...

Thermal motor protection relay 2 changeover contacts - Motor temperature monitor 1 circuits 3RN20... – Siemens – 4047621004464: Thermal motor protection relay 2 changeover contacts 3RN2010-1BW30 Number of measuring circuits 1, number of contacts as normally closed contacts 0, number of contacts as normally open contacts 0, number of contacts as changeover contacts 2, connection type auxiliary circuit screw connection, height 100mm, width 22.5mm, depth 90mm, Thermistor motor protection relay Standard evaluation device 22.5 mm housing Screw connection 2 changeover contacts US = AC/DC 24 V-240 V Auto RESET suitable for bimetal switches 2 LEDs (READY/TRIPPED) galvanic isolation Thermistor motor protection relay SIRIUS 3RN2 to protect motors from overheating through direct temperature measurement. Direct measurement of the motor winding temperature enables a motor to be protected even under unusual conditions such as heavy starting, braking, frequent switching or insufficient cooling and thus saves the need for precautionary oversizing of the motor. By using PTC sensors or bimetal switches, parameterization of the devices is not necessary. LEDs enable quick error diagnosis. The devices are climate-proof, touch-safe and can be used worldwide thanks to their wide voltage range and international approvals. Available as mono- or bistable evaluation devices, with and without ATEX approval, with one or two sensor circuits and with auto manual and/or remote RESET. The devices are available with screw or spring-loaded technology (push-in). There are versions with an overall width of 17.5 mm or 22.5 mm, for TH35 top hat rails or for screw fastening with an adapter (accessory) and with hard gold-plated contacts. Uniform accessories for all device variants, such as removable clamps, insertion tabs and coding pins, simplify selection and storage. The 3RN2 thermistor motor protection relays replace the proven 3RN1 series. SIRIUS relays - a program for all cases.