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The Phoenix Contact 1020103 is a 3-pole thermal magnetic circuit breaker designed for overcurrent protection. It has a current rating of 50A and a voltage rating of 277V AC, with dual-rated capabilities for systems up to 480V AC and 125V DC.
This circuit breaker utilizes a thermal-magnetic tripping mechanism and is available in B, C, and D trip curves, suitable for various load types. It features a lever actuator for switching and provides visual status indication. The breaker is designed for secure screw terminations and is suitable for DIN rail mounting, making it ideal for use in switchgear, panel boards, and electrical equipment.
With a short circuit current rating (SCCR) of 7.5 kA for the TMC 7 series and 10 kA AIC for the TMC 8 series, it offers reliable protection. The snap-action mechanism ensures reliable switching behavior, and the trip-free design enhances safety against closing during an overcurrent event.
The Phoenix Contact 1020103 is rated for 50A continuous current.
The 1020103 is rated for 277V AC, with an AC voltage rating of 480V and a DC voltage rating of 125V.
The 1020103 is a 3-pole circuit breaker.
The 1020103 supports B, C, and D trip curves.
The short circuit current rating is 7.5 kA.
The interrupting capacity is 10 kA.
The 1020103 is designed for DIN rail mounting.