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This E-T-A 2-6400 series thermal circuit breaker is a single-pole device with a current rating of 1.5A and voltage ratings of 250V AC and 28V DC. It utilizes a push-to-reset, trip-free mechanism and is approved to EN 60934 (IEC 60934).
Designed for typical applications such as motors, transformers, solenoids, and controls for oil and gas boilers, this circuit breaker offers a degree of protection of IP40 in the operating area and IP00 at the terminal area. It operates within an ambient temperature range of -20 to +60 °C.
The breaker features auxiliary contacts as standard, including one normally closed (N/C) and one normally open (N/O) contact. It is designed for panel mounting with a threadneck style, specifically a 3/8-27UNS-2A thread.
Key technical data includes an interrupting capacity of 10 x IN (or up to 2,000A at 250V AC for higher current ratings), a typical life of 5,000 operations at 2 x IN inductive, and an insulation resistance greater than 100 MΩ.
The device is rated for 250 volts AC and 28 volts DC.
It uses a threadneck panel mount configuration and ships in bulk packaging.
The unit operates reliably within an ambient temperature range of -20°C to +60°C.
The typical life is 5,000 operations when tested at twice the nominal current under inductive load conditions.
The auxiliary circuit supports up to 1 ampere at 250 volts AC or 28 volts DC.
There is an AC 3,000-volt dielectric strength test voltage between the main and auxiliary circuits.