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This E-T-A 1620-3-7.5A is a single-pole, thermal miniaturised circuit breaker (Mini-CBE) specifically designed for automotive applications. It fits into fuse blocks compliant with ISO 8820-3, Type F.
The circuit breaker features a push-to-reset actuator and is suitable for DC 12V and DC 24V systems, with a maximum voltage rating of 29.0V. It offers current ratings from 5A to 30A for DC 12V and 5A to 25A for DC 24V. The 7.5A version has a typical voltage drop of less than 150mV.
Designed to meet SAE J553 requirements, this circuit breaker provides protection for electrical systems in passenger cars, trucks, buses, and watercraft. It operates within an ambient temperature range of -40°C to +85°C. The device offers various reset options, including automatic reset for DC 12V and modified reset versions.
Environmental protection includes IP40 for the operating area (IP50 for versions -1, -2) and IP00 for the terminal area. It has undergone rigorous testing for vibration, shock, corrosion, and humidity, meeting IEC standards.
The maximum voltage rating is 29V.
The operating temperature range is -40 to +85°C.
The nominal current rating is 7.5A, with ranges of 5...30A at 12VDC and 5...25A at 24VDC.
It has a push-to-reset actuator.
The operating area is IP40 (IP50 for certain versions) and the terminal area is IP00.
Service breaking capacity is 300 operations at 2x IN, ultimate breaking capacity is at least one break operation at 2000A.
The weight is approximately 3g.