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The E-T-A 1620-2-25A is a single-pole, thermal miniaturised circuit breaker (Mini-CBE) specifically engineered for automotive applications. It fits into fuse blocks designed to ISO 8820-3, Type F.
This circuit breaker has a current rating of 25A and a maximum voltage rating of 14.5V DC. It meets the requirements of SAE J553 and is suitable for protecting electrical systems in passenger cars, trucks, buses, and watercraft.
The 1620-2-25A features an automatic reset function and is designed for installation in potentially inaccessible locations. Its thermal tripping mechanism ensures reliable protection against overcurrent conditions. The circuit breaker will reset after the load is removed.
Key technical data includes a service short-circuit breaking capacity of 300 operations at 2x IN and an ultimate short-circuit breaking capacity of at least 1 break operation at 2,000 A. It operates within an ambient temperature range of -40°C to +85°C.
The maximum voltage rating is 14.5V DC.
The ambient temperature range is -40 to +85 °C.
At 12V DC, the current rating is 5 to 30 A; at 24V DC, it is 5 to 25 A. The nominal rating is 25A at 12V DC.
It is a thermal circuit breaker with automatic reset.
Service short-circuit breaking capacity: 300 operations at 2x rated current. Ultimate short-circuit breaking capacity: at least 1 break operation at 2000 A.
The operating area is IP40 (for version -3) or IP50 (for versions -1, -2). The terminal area is IP00.