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Technical specification guide 1 0 general information 2 0 product features product functions

Technical speci ?cation guide Thermistor motor protection relay Revision Content General information introduction Product features product functions Conformance standards Approvals certi ?cates marks Technical data Mechanical requirements Quality requirements Documentation Start up Accessories General information Introduction This speci ?cation guide covers the general requirements for design manufacturing and installation of low voltage measuring and monitoring relays for temperature monitoring in motors Product features The device shall be designed for controlling motors ?tted with PTC product functions resistor sensors The temperature sensors shall be incorporated in the starter windings to measure directly the motor heating The product shall be provided with -sensor circuits and a accumulative evaluation system as well as a con ?gurable non-volatile storage in case of failure The device shall have a front-sided storage reset and test button Also the capability of an automatic and a remote reset shall be given A short circuit monitoring of the sensor cable shall be done by the device The thermistor motor protection relay shall accept a continuous supply voltage range - V AC DC If the PTC resistor belonging to one sensor circuit heats up excessively the output relay de-energizes After cooling down the output relay energizes as soon as the reset button is pushed or automatic or remote reset is con ?gured The device shall be provided with the following LED indications - Fault tripping F preferably red LED - Fault tripping F preferably red LED - Fault tripping F preferably red LED - Supply voltage preferably green LED The thermistor motor protection relay shall be ABB type CM-MSS sensors accumulative evaluation or pre-approved equal Conformance standards The thermistor motor protection relay shall be designed manufactured and tested in accordance with the latest editions of applicable IEC standards Product standard Electromagnetic compatibility ESD IEC - EN - IEC - - EN - - CDC D CTechnical speci ?cation guide Thermistor motor protection relay Revision HF radiation resistance Burst Surge HF line emission IEC - - EN - - IEC - - EN - - IEC - - EN - - IEC - - EN - - Approvals Marks The thermistor motor protection relay shall be approved and or certi ?ed by the following organizations Underwriters Laboratories cULus - GOST - ATEX and shall have the following marks - CE - C-Tick Technical data The thermistor motor protection device shall be rated in accordance with the following speci ?cations Rated supply voltage - V AC DC Rated frequency - Hz Number of output contacts n c n o Rated switching voltage IEC - IEC - V AC Rated switching current IEC - - AC resistive V A AC inductive V A DC resistive V A DC inductive V A Operating temperature range - C ? C Storage temperature range ? - C ? C Mechanical requirements The thermistor motor protection device should be realized in a mm wide enclosure possible to be mounted on DIN rail according to EN The connection terminals should be able to accept stranded wires in the