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The Phoenix Contact 0712123 is a thermal miniature circuit breaker from the CLIPLINE TCP series. It offers a compact design and is available in finely graded nominal current steps from 0.25 A to 10 A. This circuit breaker operates at a nominal voltage of 250 V AC / 65 V DC and has a current rating of 250mA.
Key features include an integrated ON/OFF switching function for immediate reset after triggering, increasing system availability. It can be plugged into UK 6-FSI/C fuse base terminal blocks with screw connection or ST 4-FSI/C terminals with spring-cage connection. The ambient temperature range for operation is -20°C to +60°C.
This thermal circuit breaker is suitable for applications requiring precise overcurrent protection. Its design facilitates potential distribution using bridges when used with compatible terminal blocks. The UL 1077 interrupting capacity is 2000A at 250V AC and 200A at 65V DC.
The 0712123 is rated for 250 V AC and 65 V DC.
The nominal current rating is 250 mA (0.25 A).
It has a push-to-reset actuator.
The operating temperature range is -20°C to +60°C.
It is a single-pole (1-pole) circuit breaker.
Per IEC, interrupting capacity is 6xIN for 0.25A-4A and 8xIN for 6A-10A; per UL 1077, it is 2000A for 0.25A-4A and 200A for 6A-10A.
It is designed for holder mounting.