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This E-T-A 129-L11-H-KF-25A is a thermal automotive circuit breaker with a single pole configuration. It features a push-to-reset actuator and a manual release facility, designed for reliable operation in demanding environments.
The circuit breaker is rated for 25A current and can handle up to 250V AC or 50V DC. It is designed for chassis mounting and has a width of 11.5mm. The device operates within an ambient temperature range of -40°C to +75°C.
Key technical data includes an interrupting capacity of 400A at 25A and 2500A at 25A under UL 1077 standards. It also meets IP32 protection for the operating area.
Typical applications include extra-low voltage wiring systems on vehicles and marine craft. The breaker is built with a snap-action mechanism and is trip-free.
The 129-L11-H-KF-25A is rated for 250V AC and 50V DC (with a datasheet reference of 28V DC per VDE/EN 60934).
The continuous current rating is 25A for both AC and DC.
Interrupting capacity Icn is 400A at 25A per IEC/EN 60934, and 2500A at 50V DC per UL 1077.
The operating temperature range is -40°C to +75°C (-40°F to +167°F).
It uses a push-to-reset actuator with a manual release facility (H version).
The breaker is designed for chassis mount with bolt-on attachment and screw terminals.
The housing is KF standard, with IP32 protection at the operating area and IP00 at the terminal area.