ABB S401M Miniature Circuit Breaker, 1-Pole, 6A, Type C, 254V ac AC, 12 V dc DC, 25 kA Breaking Capacity

This miniature circuit breaker provides overcurrent protection for low-voltage installations, operating in both AC and DC environments. It is designed for single-pole distribution and combines thermal and electromechanical tripping to interrupt faults rapidly. The device integrates a screw Terminal for secure connections and a reset I/O actuator for manual switching in control panels.

• 6A Current Rating delivers consistent protection for light circuits
• 25kA Breaking Capacity limits fault energy during short-circuits
• Type C Tripping characteristic allows controlled inrush tolerance
• Electromechanical thermal trip provides combined instantaneous and overload protection
• IP20 enclosure ensures safety against solid contact in enclosed panels

• Suitable for protecting lighting and small power circuits
• Ideal for DC control systems at low voltage levels
• Used with distribution boards requiring narrow module spacing
• Can be used for single-phase AC branch circuit protection
• Suitable for retrofit installations needing screw-terminated devices

It is rated for 12V DC and 254V AC operation to cover low-voltage DC control and standard AC distribution.

It is a single-pole unit with screw terminals intended for DIN-rail mounting in enclosure panels.

The product conforms to CMRT, IEC/EN 60898-1 standards and meets RoHS and REACH requirements.

The housing offers IP20 protection, preventing access to hazardous internal parts while installed.