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This E-T-A 3120-N thermal circuit breaker, part number 3120-N321-P7T1-W01D-20A, provides reliable overcurrent protection and switch functionality in a single component. It features a thermal bimetal trip element and is suitable for protecting motors, pumps, transformers, and cables.
The breaker is rated for 20A and operates at up to 240V AC or 50V DC. It is designed for panel mounting and has a rocker actuator. The unit is a double-pole configuration, ensuring comprehensive circuit interruption. Its positively trip-free mechanism guarantees disconnection even when the actuator is blocked, enhancing safety and reliability.
Key features include a resettable design for quick recovery after tripping and a space-saving form factor. The internal resistance is less than 0.02 Ohms, contributing to efficient operation. This thermal circuit breaker is well-suited for applications requiring robust overload protection and dependable switching.
Typical applications include medical and laboratory equipment, apparatus and machine construction, professional tools, household appliances, office machines, and audio equipment. It is also suitable for use in medical equipment according to IEC/EN 60601 standards.
It is rated for 240 V AC and 50 V DC.
20 A.
Thermal.
2.
Rocker.
Panel mount.
Less than 0.02 ohm.