Motor circuit breaker
RELPOL
up to 63 A. The devices are used for switching and protecting motors or other loads. They are fitted with instantaneous overcurrent releases and inverse-time delayed overload relay. Circuit-breakers and contactors can be combined to form fuseless starter combinations. The RMSI25, RMSI63 circuit-breakers are suitable for use in any climate. They are designed for operation in enclosed rooms, under good operating conditions (e.g. no dust, corrosive steam or damaging gases). They must be suitably encapsulated before being installed in dusty and humid rooms. The standards to which the breakers have been constructed, permissible ambient temperatures, maximum making and breaking capacity, tripping currents and other limiting operational conditions are given in the technical data in catalogue and on website www.relpol.com.pl
Circuit-breakers for motor protection:
RMSI25 (0,1...25 A), RMSI63 (1...52 A): the characteristic curves of these circuit-breakers are specially laid-out for the overload and short-circuit protection of motors. They are fitted with inverse-time delayed overload releases and instantaneous electromagnetic overcurrent releases - short-circuit releases. The inverse-time delayed releases are adjustable for setting the rated current of the motors to be protected. The instantaneous short-circuit releases are fixed-set to 12 times the value so as to assure faultless starting of the motors.
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