ABB S201M-K40 MCB - S200M - 1P - K - 40A

ABB S201M-K40 MCB – S200M – 1P – K – 40A

ABB S201M-K40 System pro M Compact miniature circuit breaker featuring 1 pole, 40 A rated current, K curve tripping characteristic and 10 kA breaking capacity for industrial circuit protection.

SKU: S201M-K40Alt SKU: S201M-K40MPN: 2CDS271001R0557
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List Price £43.62 ex VAT
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Manufacturer Lead Time Estimated Delivery 14 weeks
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Why Choose the ABB S201M-K40 Miniature Circuit Breaker?

The ABB S201M-K40 is a premium 1 pole miniature circuit breaker (MCB) from the proven ABB System pro M Compact S200M series. Designed to provide dependable overload and short circuit protection, it is ideal for industrial, commercial and OEM electrical installations where circuits experience high inrush currents.

Featuring a K curve tripping characteristic and a 40 A rated current, the S201M-K40 is particularly suitable for protecting motors, transformers, solenoids, contactors and other inductive loads. Its current limiting design reduces fault energy, helping protect connected equipment while improving electrical safety and system reliability.

Manufactured in accordance with IEC/EN 60898-1 and IEC/EN 60947-2, the ABB S201M-K40 provides a 10 kA breaking capacity, compact DIN rail mounting and compatibility with ABB System pro M Compact accessories, making it an excellent choice for modern control panels and electrical distribution systems.

Key Advantages

  • Compact 1 pole miniature circuit breaker.
  • 40 A rated current with K curve tripping characteristic.
  • 10 kA short circuit breaking capacity.
  • Designed for circuits with high inrush currents.
  • Reliable overload and short circuit protection.
  • Compatible with ABB System pro M Compact accessories.

Key Features

  • ABB System pro M Compact S200M series.
  • 40 A rated current.
  • K characteristic thermal magnetic trip.
  • 1 pole configuration.
  • 10 kA breaking capacity at 230/400 V AC.
  • DIN rail mounting.
  • Red/green contact position indication.
  • Current limiting design for enhanced protection.

Reliable Protection for Inductive Loads

The ABB S201M-K40 combines delayed thermal overload protection with electromechanical short circuit protection. The K curve characteristic accommodates higher inrush currents than standard B or C curve devices, making it particularly suitable for motors, transformers, compressors, contactors and other inductive equipment.

As part of the ABB S200M range, this miniature circuit breaker provides dependable long-term performance, excellent current limiting characteristics and compatibility with a comprehensive range of ABB accessories for industrial control panels and electrical distribution systems.

Typical Applications

  • Motor starter circuits.
  • Industrial machinery.
  • Transformer protection.
  • Control panels and automation systems.
  • Commercial electrical distribution.
  • OEM equipment and machine building.

Technical Specifications

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Current 40 A
Phase Single Phase
Poles 1-pole
Device Type MCB
Trip Curve K curve
Breaking Capacity 10 kA
Manufacturer ABB
Series System pro M Compact S200M
Model S201M-K40
MPN 2CDS271001R0557
EAN 4016779599757
Product type Miniature Circuit Breaker (MCB)
Rated current 40 A
Tripping characteristic K
Number of poles 1
Rated operational voltage 230/400 V AC
Frequency 50 / 60 Hz
Breaking capacity 10 kA
Rated insulation voltage 440 V
Protection rating IP20
Energy limiting class 3
Mounting type 35 mm DIN rail
Terminal type Screw terminals
Contact indication Red ON / Green OFF
Dimensions (W × H × D) 17.5 × 88 × 69 mm
Power loss approx. 4.5 W
HS Code 85362010
Country of Manufacture Germany

Frequently Asked Questions

What is the ABB S201M-K40 used for?

The ABB S201M-K40 protects electrical circuits against overloads and short circuits, particularly those supplying motors, transformers and other inductive loads.

What does the K curve tripping characteristic mean?

The K curve is designed to accommodate higher inrush currents than B or C curve breakers, making it suitable for motors, transformers and equipment with high starting currents.

What is the rated current of the S201M-K40?

This miniature circuit breaker has a rated current of 40 A.

What is the breaking capacity?

The ABB S201M-K40 provides a 10 kA short circuit breaking capacity at 230/400 V AC.

How is the breaker installed?

The S201M-K40 mounts onto a standard 35 mm DIN rail and is suitable for installation inside distribution boards and industrial control panels.

Trusted by Electrical Professionals Worldwide

ABB System pro M Compact miniature circuit breakers are trusted by electricians, panel builders and industrial engineers worldwide for dependable circuit protection, reliable operation and long service life.