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The E-T-A 3120-N321-P7T1-W02K-0.2A is a thermal circuit breaker that combines overcurrent protection with an ON/OFF switch function. It utilizes a thermal-bimetal trip element and is suitable for overload protection of motors, pumps, transformers, and cables. This 2-pole breaker can be easily and quickly reset after tripping.
Key electrical specifications include a voltage rating of up to 415V AC and a current rating range from 0.1A to 20A, with this specific model rated at 200mA. It is designed for panel mounting and features a rocker actuator. The breaker is approved by CSA, GB, IEC, and UL standards.
Typical applications for this type of thermal circuit breaker include medical and laboratory equipment, apparatus and machine construction, professional tools, household and garden appliances, office machines, audio equipment, and machine tools. Its design ensures maximum equipment availability through overload protection matched to loads and quick resettability, reducing mounting and wiring time.
Further functional extensions are possible with add-on modules for low voltage release, auxiliary contact function, remote trip, or fast magnetic trip. It is also suitable for use in medical equipment according to IEC/EN 60601.
The rated current is 200mA (0.2A).
It supports 240VAC and 50VDC.
It is a 2-pole circuit breaker.
It uses a rocker actuator.
The typical life is 50,000 cycles at 1 x IN under inductive AC 240V load for the 2-pole configuration.
It is approved to CSA C22.2 No 235, GB 17701, IEC 60934, and UL1077.
It is designed for panel mount installation.