The Eaton Industries MCCB residual current relay is an optional accessory for the NZM circuit-breaker series that offers a broad range of applications worldwide. Its flexible and easy mounting is possible due to its modular function groups. Approved according to IEC/EN 60947-2, it is suitable for use in three- and single-phase systems and is pulse current sensitive per the core-balance principle. The relay is usable for 3 and 4 pole NZM1(-4) circuit-breakers and N1(-4) switch-disconnectors. It operates independently of mains voltage with a fixed delay time setting and a warning message via a yellow LED. Two user-fitted auxiliary contacts are allowed, but not in combination with insulated enclosure or main switch assembly kit. In combination restrictions apply to shunt/undervoltage release.
Specifications
Rated control supply voltage Us at AC 50HZ (V) : 200 V to 415 V
Rated control supply voltage Us at AC 60HZ (V) : 200 V to 415 V
Rated control supply voltage Us at DC (V) : 0 V to 0 V
Rated fault current (A) : 0.3 A to 0.3 A
Max. power on-delay time (ms) : 300
Delay adjustable : No
Max. rated operation voltage Ue (V) : 415
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