Siemens Sırius Electronic Overcurrent Relay 1No+1Nc 55-250A Size S10/12 3RB2066-1GC2 Class 10 working class, test function, manual and automatic, remote reset, position indicator, self-powered, sensitive to phase drop and phase asymmetry, same size For direct mounting to contactors, a thermal relay connector should be used for rail mounting. 1NO+1NC auxiliary contact.

Thermal relays are not used alone. Used with fuses or contactors. While fuses provide protection at a certain current value, thermal relays provide protection in the adjusted current region. If we consider the motors in which it is generally used, thermal relays should break the circuit at the allowable point in case of overcurrent, except for the currents drawn at the time of starting current, overload starting or braking.

Siemens Sirius Thermal Relay 1No+1Nc 9-12;5A; Size S00 (Rail Mount) 3RU2116-1KB1

Siemens Sırius Electronic Overcurrent Relay 1No+1Nc 10-40A Size S0 3RB3026-1VB0 Class 10 working class, test function, manual and automatic, remote reset, position indicator, self-powered, sensitive to phase drop and phase asymmetry, direct to same size contactors mounted, thermal relay connector should be used for rail mounting. 1NO+1NC auxiliary contact.

Siemens Sirius Electronic Overcurrent Relay 1No+1Nc 50-200A Size S6 3RB2056-1FC2 Overcurrent relays combine reverse and independent time relays in a single device. These relays are used to protect transformers, motors, generators and power transmission lines in the power distribution system against short circuits and ground faults. "Selective protection" should be applied to ensure the highest level of protection. The main purpose of selective protection is to limit the fault to the minimum and disconnect the connection as soon as possible.