Why Choose the ABB S201-D4 Miniature Circuit Breaker?
The ABB S201-D4 is a premium single-pole miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in residential, commercial and industrial electrical installations. As part of the trusted ABB System pro M Compact S200 series, it delivers reliable current limiting performance, compact installation and long service life for modern electrical distribution systems.
Engineered with advanced thermal and electromagnetic tripping mechanisms, the S201-D4 helps safeguard electrical circuits by responding rapidly to overloads and fault currents. Its modular DIN rail design enables quick installation inside distribution boards and control panels, while compatibility with ABB auxiliary accessories provides additional flexibility for professional electrical installations.
Featuring a 4 A rated current, D curve tripping characteristic and a 6 kA breaking capacity, the ABB S201-D4 is particularly suited to protecting circuits supplying transformers, control equipment, motors, power supplies and other devices with high inrush currents.
Key Advantages
- Reliable single-pole miniature circuit breaker for overload and short-circuit protection.
- 4 A rated current suitable for low-current commercial and industrial circuits.
- D curve tripping characteristic designed for high inrush current applications.
- 6 kA short-circuit breaking capacity for dependable fault interruption.
- Compact DIN rail mounted design saves valuable panel space.
- Compatible with ABB auxiliary contacts and accessories.
Key Features
- ABB System pro M Compact S200 series.
- 4 A rated current.
- Single-pole (1P) configuration.
- D tripping characteristic.
- 6 kA rated breaking capacity.
- Thermal overload and electromagnetic short-circuit protection.
- 35 mm DIN rail mounting.
- Manufactured to IEC/EN 60898-1, IEC/EN 60947-2 and UL 1077 standards.
Reliable Protection for High Inrush Applications
The ABB S201-D4 automatically disconnects electrical circuits when overload or short-circuit conditions occur, helping protect wiring, equipment and electrical systems from damage. Its combined thermal and magnetic tripping mechanisms provide dependable protection while maintaining reliable everyday operation.
The D curve characteristic allows the breaker to tolerate high temporary inrush currents before magnetic tripping occurs, making it particularly suitable for circuits supplying transformers, motors, solenoids and industrial control equipment.
Typical Applications
- Industrial control panels.
- Transformer protection circuits.
- Motor control systems.
- Automation and control equipment.
- Commercial distribution boards.
- OEM machinery and manufacturing equipment.
