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The E-T-A 1620-3-25A is a single-pole, thermal miniaturised circuit breaker (Mini-CBE) specifically engineered for automotive applications. It conforms to ISO 8820-3, Type F fuse block standards, making it a direct replacement for blade fuses with clear color coding for easy identification.
This circuit breaker features a current rating of 25A and a maximum voltage rating of 29.0V DC. It offers a service short-circuit breaking capacity of 300 operations at 2 x IN and an ultimate short-circuit breaking capacity of up to 2,000A. The operating temperature range is -40°C to +85°C.
Designed for reliability, the 1620-3-25A meets SAE J553 requirements and is suitable for protecting electrical systems in passenger cars, trucks, buses, and watercraft. Its compact size and thermal tripping mechanism make it ideal for installation in hard-to-reach locations. The breaker is available in automatic reset (DC 12V only) or open circuit (modified reset) versions.
Environmental testing includes vibration resistance up to 10g, shock resistance up to 50g, and protection against salt mist and humidity, ensuring durability in demanding automotive environments. The ingress protection rating is IP40 for the operating area and IP00 for the terminal area.
The current rating is 25A.
The maximum voltage rating is 29V.
It is a single-pole, thermal miniaturised circuit breaker.
The operating temperature range is -40°C to +85°C.
Yes, it meets the requirements of SAE J553.
The operating area has an IP40 rating, and the terminal area has an IP00 rating.