Motor protection breaker with magnetic-only trip
Rated 12.5 A at 65 °C, it pairs with an external overload relay for full motor branch protection.
You size the breaker to the motor's full-load amps and let the external overload relay handle running protection. The magnetic trip unit provides instantaneous short-circuit protection only, with a fixed pickup typically around 12–14× In for MA trip curves. Breaking capacity of 85 kA Icu at 500 V AC and 75 kA at 690 V AC covers most industrial motor branch circuits; the HB1 code indicates the high-breaking version. The 3-pole design with front connections mounts flat on a backplate in either horizontal or vertical orientation.
Integration notes
The 35 mm connection pitch matches standard busbar systems. IP40 front protection and IK07 impact resistance are adequate for enclosed panel mounting — no washdown rating, so keep it inside the cabinet. Electrical durability is 20,000 cycles at 440 V In/2 and 10,000 cycles at 440 V In; mechanical durability is 20,000 cycles.
