ABB S201-B25NA MCB - 1P+N - B Curve - 25A - 6kA

ABB S201-B25NA MCB – 1P+N – B Curve – 25A – 6kA

ABB S201-B25NA 1P+N miniature circuit breaker with 25 A rating, B tripping characteristic and 6 kA breaking capacity for reliable low voltage circuit protection.

SKU: 2CDS251103R0255Alt SKU: S201-B25NAMPN: 2CDS251103R0255
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List Price £86.11 ex VAT
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Manufacturer Lead Time Estimated Delivery 5 weeks
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Why Choose the ABB S201-B25NA Miniature Circuit Breaker?

The ABB S201-B25NA (Part Number: 2CDS251103R0255) is a high quality 1P+N miniature circuit breaker (MCB) from the trusted ABB System pro M Compact S200 range. Designed to protect low voltage electrical circuits against overloads and short circuits, it provides dependable performance for residential, commercial and industrial installations.

With a 25 A rated current, B tripping characteristic and 6 kA breaking capacity, the S201-B25NA is suitable for general purpose circuits where low inrush currents are expected. Its current-limiting design helps reduce fault energy, while thermal and electromagnetic trip mechanisms provide reliable protection for wiring and connected equipment.

The ABB S201-B25NA is designed for straightforward DIN rail installation inside consumer units, distribution boards and control panels. Its compact modular format, robust construction and compatibility with ABB System pro M Compact accessories make it a dependable choice for professional electrical installations.

Key Advantages

  • Premium 1P+N miniature circuit breaker from ABB.
  • 25 A rated current with B curve tripping characteristic.
  • 6 kA short-circuit breaking capacity.
  • Suitable for general circuits with low inrush currents.
  • Provides overload and short-circuit protection.
  • Compact DIN rail mounted design for fast installation.

Key Features

  • ABB System pro M Compact S200 series.
  • Model: S201-B25NA.
  • Product ID: 2CDS251103R0255.
  • 25 A rated current.
  • B tripping characteristic.
  • 1P+N configuration.
  • 6 kA rated breaking capacity.
  • Thermal overload and electromagnetic short-circuit protection.
  • Current-limiting miniature circuit breaker design.
  • DIN rail mounting.

Reliable Circuit Protection for General Electrical Installations

Miniature circuit breakers automatically disconnect electrical circuits when overload or short-circuit conditions occur, helping protect wiring, connected equipment and electrical installations from excessive current.

The B curve characteristic is commonly used for general purpose circuits with relatively low inrush currents, making the ABB S201-B25NA suitable for lighting, socket outlets, domestic distribution boards and commercial electrical installations.

Typical Applications

  • Residential consumer units.
  • Commercial distribution boards.
  • Industrial electrical panels.
  • Lighting circuits.
  • Socket outlet circuits.
  • General low voltage circuit protection.

Technical Specifications

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Certification UL 1077
Current 25 A
Phase Single Phase
Poles 1-pole + N
Device Type MCB
Trip Curve B curve
Breaking Capacity 6 kA
Manufacturer ABB
Series System pro M Compact S200
Model S201-B25NA
Product ID 2CDS251103R0255
Product type Miniature Circuit Breaker (MCB)
Rated current 25 A
Tripping characteristic B
Number of poles 1P+N
Rated operational voltage 230 / 400 V AC
Rated insulation voltage 440 V
Rated frequency 50 / 60 Hz
Breaking capacity 6 kA
Protection rating IP20
Mounting type DIN rail
Dimensions (H × W × D) approx. 88 × 35 × 69 mm
Standards IEC/EN 60898-1, IEC/EN 60947-2, UL1077
HS Code 85362010
Country of Manufacture Germany

Frequently Asked Questions

What is the ABB S201-B25NA used for?

The ABB S201-B25NA is used to protect electrical circuits against overloads and short circuits in residential, commercial and industrial installations.

What is the rated current?

The S201-B25NA has a 25 A rated current.

What does the B tripping characteristic mean?

A B curve miniature circuit breaker is designed for general electrical circuits with relatively low inrush currents, such as lighting and socket outlet circuits.

How is this circuit breaker installed?

The device is designed for standard DIN rail mounting inside consumer units, distribution boards and electrical control panels.

Which standards does the S201-B25NA comply with?

The circuit breaker complies with IEC/EN 60898-1, IEC/EN 60947-2 and UL1077.

Trusted by Electrical Professionals Worldwide

ABB System pro M Compact miniature circuit breakers are trusted by electricians, panel builders and industrial engineers worldwide for reliable circuit protection, robust construction and consistent long-term performance.