The ABB S203-K32 miniature circuit breaker is a three-pole, K-curve, 32 A MCB engineered for demanding industrial and commercial distribution boards. It delivers fast, selective protection for circuits with high inrush currents such as motors and transformers, combining ABB quality with a compact, DIN-rail form factor to optimize panel space and reliability.

Built on ABB's S200 platform, this thermal-magnetic device provides consistent trip characteristics, clear circuit identification, and dependable performance across harsh electrical environments. Rated for 230/400 VAC systems at 50/60 Hz, it mounts on standard 35 mm DIN rail and uses robust screw terminals for secure, repeatable terminations. Designed for efficient assembly and service, it meets the requirements of IEC/EN 60898-1 for low-voltage circuit protection.

Whether you're upgrading motor feeders or standardizing on a single MCB family across multiple panels, the S203-K32 helps reduce downtime and simplify spares, and it is backed by a 1-year warranty to give your team added confidence from commissioning through operation.

• Brand: ABB
• Series: S200
• Model: S203-K32
• Poles: 3P
• Tripping curve: K
• Rated current: 32 A
• Rated voltage: 230/400 VAC
• Mounting: DIN rail 35 mm