ABB S201-B50 MCB - S200 - 1P - B - 50A

ABB S201-B50 MCB – S200 – 1P – B – 50A

ABB S201-B50 System pro M compact S200 miniature circuit breaker, 1 pole, 50 A, B curve, 6 kA breaking capacity for low voltage circuit protection.

SKU: S201B50Alt SKU: S201-B50MPN: 2CDS251001R0505
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List Price £21.03 ex VAT
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Manufacturer Lead Time Estimated Delivery 4 - 5 Days
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Why Choose the ABB S201-B50 Miniature Circuit Breaker?

The ABB S201-B50 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 50 A rated current and B curve tripping characteristic, it is suitable for residential, commercial and industrial distribution applications requiring dependable low voltage circuit protection.

As part of the ABB S200 series, the S201-B50 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-B50 provides dependable protection for modern low voltage electrical installations.

Key Advantages

  • Reliable 50 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.
  • 50 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.

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-B50 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 general-purpose final circuits, consumer units, distribution boards and electrical control panels in residential, commercial and light industrial environments.

Typical Applications

  • Residential consumer units and distribution boards.
  • Commercial electrical installations.
  • General-purpose final circuits.
  • Power distribution circuits.
  • Industrial control panels.
  • Low voltage circuit protection systems.

Technical Specifications

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Certification UL 1077
Current 50 A
Phase Single Phase
Poles 1-pole
Device Type MCB
Trip Curve B curve
Breaking Capacity 6 kA
Manufacturer ABB
Series System pro M compact S200
Model S201-B50
Product ID 2CDS251001R0505
Product type Miniature circuit breaker
Number of poles 1 pole
Rated current 50 A
Tripping characteristic B curve
Rated operational voltage 230 / 400 V AC
Rated DC voltage 72 V DC
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
Dimensions (H × W × D) approx. 88 × 17.5 × 69 mm
Net weight approx. 0.12 kg
EAN 4016779550925
HS Code 85362010
Country of Manufacture Germany

Frequently Asked Questions

What is the ABB S201-B50 used for?

The ABB S201-B50 protects electrical circuits against overloads and short circuits in residential, commercial and industrial low voltage installations.

What current rating does the S201-B50 have?

The ABB S201-B50 has a 50 A rated current.

What does the B curve characteristic mean?

The B curve is designed for circuits with relatively low inrush current, making it suitable for general-purpose electrical circuits.

What is the breaking capacity of the ABB S201-B50?

The S201-B50 has a 6 kA short-circuit breaking capacity at 230/400 V AC.

How is the ABB S201-B50 installed?

The S201-B50 is designed for standard DIN rail mounting in consumer units, distribution boards and electrical control panels.

Trusted by Electrical Professionals Worldwide

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