ABB s201-b20 sp mcb b20a 6ka

Why Choose the ABB S201-B20 Miniature Circuit Breaker?

The ABB S201-B20 is a compact and reliable single pole miniature circuit breaker (MCB) from the trusted ABB System pro M compact S200 range, designed to protect electrical circuits against overloads and short circuits. With a 20 A rated current and B curve tripping characteristic, it is ideal for residential, commercial and industrial distribution applications where dependable low voltage circuit protection is required.

As part of the ABB S200 series, the S201-B20 uses current-limiting technology and combines delayed thermal overload protection with electromechanical short-circuit protection. Its compact DIN rail format allows straightforward installation in consumer units, distribution boards and electrical control panels.

With a 6 kA breaking capacity, 230/400 V AC rated operational voltage and compliance with international standards including IEC/EN 60898-1, IEC/EN 60947-2 and UL 1077, the ABB S201-B20 provides trusted protection for modern low voltage electrical systems.

Key Advantages

• Reliable 20 A miniature circuit breaker for low voltage circuit protection.
• B curve tripping characteristic suitable for general-purpose final circuits.
• Single pole design for compact distribution board installations.
• 6 kA breaking capacity for dependable short-circuit protection.
• DIN rail mounting for fast installation in consumer units and control panels.
• Part of the ABB System pro M compact S200 range.

Key Features

• ABB System pro M compact S200 series.
• 20 A rated current.
• B curve tripping characteristic.
• 1 pole miniature circuit breaker.
• 6 kA rated short-circuit breaking capacity.
• Delayed thermal overload and electromechanical short-circuit protection.
• DIN rail mounting to IEC 60715.
• Red ON / Green OFF contact position indication.

Technical Specifications

• Manufacturer: ABB
• Series: System pro M compact S200
• Model: S201-B20
• Product ID: 2CDS251001R0205
• Product type: Miniature circuit breaker
• Number of poles: 1 pole
• Rated current: 20 A
• Tripping characteristic: B curve
• Rated operational voltage: 230 / 400 V AC
• Breaking capacity: 6 kA
• Rated frequency: 50 / 60 Hz
• Standards: IEC/EN 60898-1, IEC/EN 60947-2, UL 1077
• Mounting type: DIN rail mounting to IEC 60715
• Width in modular spacings: 1 module
• Power loss: 2.5 W
• Contact position indication: Red ON / Green OFF
• Dimensions (H × W × D): approx. 88 × 17.5 × 69 mm
• Net weight: approx. 0.13 kg
• EAN: 4016779465106

Reliable Protection for Low Voltage Circuits

Miniature circuit breakers protect electrical installations by automatically disconnecting a circuit during overload or short-circuit conditions. The ABB S201-B20 combines thermal tripping for overload protection with electromechanical tripping for short-circuit protection, helping to reduce the risk of equipment damage and unsafe operating conditions.

The B curve characteristic is commonly used for circuits with relatively low inrush current, making this MCB suitable for lighting circuits, small power distribution, consumer units and control panels in residential, commercial and light industrial environments.

Typical Applications

• Residential consumer units and distribution boards.
• Commercial electrical panels.
• Lighting and small power circuits.
• Final circuit protection.
• Industrial control panels.
• Low voltage circuit protection systems.

Trusted by Electrical Professionals Worldwide

ABB System pro M compact miniature circuit breakers are trusted by electricians, contractors and panel builders for reliable circuit protection, compact installation and dependable performance in low voltage electrical systems.