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The E-T-A 3120-N521-PTT1-W01D-20A is a thermal circuit breaker that combines overcurrent protection with the function of an ON/OFF switch. It features a bimetal trip element and is suitable for overload protection of motors, pumps, transformers, and cables. The device can be easily and quickly reset after tripping.
Key electrical specifications include a 20A current rating and voltage ratings of 415V AC and 50V DC. This 2-pole breaker is designed for panel mounting and features a rocker actuator. It is approved by CSA, GB, IEC, and UL standards.
Typical applications for this series include medical and laboratory equipment, apparatus and machine construction, professional tools, household and garden appliances, office machines, audio equipment, and machine tools. The positively trip-free mechanism ensures reliable disconnection even when the actuator is blocked.
The circuit breaker is rated for 415V AC and 50V DC.
The current rating is 20A.
It is a thermal circuit breaker.
It has 2 poles.
It uses a rocker actuator.
Panel mount.
It is approved under CSA C22.2 No 235, GB 17701, IEC 60934, and UL1077.