Part number
2CDS253001R0255
Model no
S203-B25
$24.31 In stock · 16 Dispatch Planned dispatch date. We aim to ship within 1 business day. Depending on warehouse workload it can take 2–3 business days. · From Türkiye

ABB 2CDS253001R0255 S203-B25 3P 25A 6kA Type-B DIN-Rail Miniature Circuit Breaker

Rated current
25 A
Rated operational voltage
230–400 V AC
Poles
3P
Breaking capacity
(230) 20 kA
EAN
4016779469203
Other ratings in ABB S200 All 9 ratings ↓
Neighbouring ratings in the same series
Motor power kW Rated current In (A) Part number Stock Price
16 2CDS253001R0165 In stock $24.31
20 2CDS253001R0205 In stock $24.31
25 2CDS253001R0255This part In stock $24.31
32 2CDS253001R0325 In stock $30.42
40 2CDS253001R0405 In stock $31.61
Description

About the S203-B25

The ABB S203-B25 miniature circuit breaker (MCB), catalog number S203-B25 and SKU 2CDS253001R0255, is a 3-pole, 25A, Type-B device rated at 230/400V AC with a 6kA breaking capacity — engineered for reliable overcurrent and short-circuit protection in residential, commercial, and light industrial control panels. Designed for fast DIN-rail installation, the S200 series delivers consistent performance across demanding electrical environments.

Certifications & Standards

  • IEC/EN 60898-1: Miniature circuit breakers for overcurrent protection in household and similar installations
  • IEC 60898-1: International standard for miniature circuit breakers
  • EN 60898-1: European harmonised standard for miniature circuit breakers
  • IEC/EN 60947-2: Low-voltage switchgear — circuit breakers for industrial applications
  • IEC 60947-2: International standard for low-voltage circuit breakers
  • EN 60947-2: European standard for low-voltage circuit breakers
  • IEC 60898: General requirements for miniature circuit breakers
  • IEC 60947: Low-voltage switchgear and controlgear general requirements
  • IEC 60068-2: Environmental testing procedures for electrical/electronic components
  • IEC/EN 60664: Insulation coordination for equipment within low-voltage systems
  • EN 60664: European standard for insulation coordination in low-voltage systems
  • UL 1077: Supplementary protectors for use in electrical equipment (UL listed)
  • CSA: Canadian Standards Association certification for electrical safety
  • CE: European Conformity marking — meets EU safety, health, and environmental requirements
  • UKCA: UK Conformity Assessed marking for the Great Britain market
  • RoHS: Restriction of Hazardous Substances — compliant with EU Directive 2011/65/EU
  • REACH: Registration, Evaluation, Authorisation and Restriction of Chemicals compliant
  • WEEE: Waste Electrical and Electronic Equipment Directive compliant
  • EN 45555: General methods for the assessment of the ability to recover energy and materials from electrical and electronic equipment
Specification

Full specification

84 values · Last verified 30 Oct 2026

Technical 21

Dielectric Test Voltage 50 / 60 Hz - 1 min 2 kV
Rated Ultimate Short-Circuit Breaking Capacity (Icu) (230 V AC) 20 kA, (400 V AC) 10 kA, (440 V AC) 10 kA, (230 V) 20 kA, (400 V) 10 kA
Rated Service Short-Circuit Breaking Capacity (Ics) (230 V AC) 15 kA, (400 V AC) 7.5 kA, (440 V AC) 7.5 kA
Power Supply Connection Arbitrary
Contact Position Indication Red ON / Green OFF
Energy Limiting Class 3
Electrical Endurance 20000 AC cycle
Mechanical Endurance 20000 cycle
Number of Protected Poles 3
Number of Poles 3P
Tightening Torque 2.8 N·m
Screw Terminal Type Failsafe Bi-directional Cylinder-lift Terminal
Actuator Marking I / O
Actuator Material Insulation Group II, Black, Sealable
Recommended Screw Driver Pozidriv 2
Accessories Available Yes
Connecting Capacity Busbar 10/10 mm², Flexible with Ferrule 0.75 ... 25 mm², Flexible 0.75 ... 25 mm², Rigid 0.75 ... 35 mm², Rigid 0.75 ... 35 mm², Stranded 0.75 ... 35 mm²
Installation Size acc. to DIN 43880 1
Wire Stripping Length 12.5 mm
Terminal Type Screw Terminals
Actuator Type Toggle

Electrical 12

Tripping Characteristic B
Rated Operational Voltage acc. to IEC 60898-1 400 V AC, acc. to IEC 60947-2 440 V AC
Operational Voltage Maximum (Incl. Tolerance) 440 V AC, Minimum 12 V AC, Minimum 12 V DC
Rated Insulation Voltage (Ui) acc. to IEC/EN 60664-1 440 V
Rated Impulse Withstand Voltage (Uimp) 4 kV, at 2000 m 5 kV, at Sea Level 6.2 kV
Input Voltage Type AC/DC
Rated Current (In) 25 A
Rated Short-Circuit Capacity (AC) 6 kA, (DC) 6 kA
Frequency (f) 50 Hz
Rated Frequency (f) 50 / 60 Hz
Power Loss 9.6 W, at Rated Operating Conditions per Pole 3.2 W
Overvoltage Category III

Design 1

Housing Material Insulation Group II, RAL 7035
Show all 84 specifications ↓ Show less ↑50 more values in Identification, Technical UL/CSA, Material Compliance, Environmental, Dimensions, Engineering, Installation, External Classifications and Standards, Logistics.

Identification 12

Part number 2CDS253001R0255
Type designation S203-B25
Brand ABB
Condition New, factory sealed
Source ABB and its authorised distributors
Warranty Manufacturer warranty
EAN 4016779469203
ETIM class EC000042
eCl@ss 27141901
Package Level 1 Units carton 1 piece
Package Level 1 Gross Weight 0.365 kg
E-Number (Sweden) 2100450

Technical UL/CSA 4

Maximum Operating Voltage UL/CSA 110 V DC, 480Y/277 V AC
Interrupting Rating acc. to UL1077 (277 V AC) 6 kA, (480Y / 277 V AC) 6 kA, (240 V) 10 kA
Connecting Capacity UL/CSA Busbar 18-8 AWG, Conductor 18-4 AWG
Tightening Torque UL/CSA 18 in·lb

Material Compliance 6

RoHS Information Following EU Directive 2011/65/EU and Amendment 2015/863 July 22, 2019
RoHS Date 20260312
REACH Information False - does not contain substances > 0.1 mass percentage
REACH Date 20260312
WEEE Category 5. Small Equipment (No External Dimension More Than 50 cm)
WEEE B2C / B2B Business To Business

Environmental 7

Ambient Air Temperature Operation -25 ... +55 °C, Storage -40 ... +70 °C
Reference Ambient Air Temperature 30 °C
Degree of Protection IP20, IP40, Enclosure with Cover IP40
Pollution Degree 3
Environmental Conditions 28 cycles, with 55 °C / 90-96 %, and 25 °C / 95-100 %
Resistance to Vibrations 20 Cycles with Load 0.8 In: 5g 5 ... 150 ... 5 Hz
Resistance to Shock acc. to IEC 60068-2-27 25g 2 shocks 13 ms

Dimensions 7

Width in Number of Modular Spacings 3
Product Net Width 52.5 mm
Product Net Height 88 mm
Product Net Depth / Length 69 mm
Product Net Weight 0.345 kg
Pole Net Weight 0.125 kg
Built-In Depth (t2) 69 mm

Engineering 1

EPLAN Data 9AAC204436_EPLAN

Installation 3

Mounting Type DIN-Rail
Mounting on DIN Rail TH35-15 (35 x 15 mm Mounting Rail) acc. to IEC 60715, TH35-7.5 (35 x 7.5 mm Mounting Rail) acc. to IEC 60715
Mounting Position any

External Classifications and Standards 6

ETIM 10 EC000042 - Miniature circuit breaker (MCB)
UNSPSC 39121603
eClass V11.0 : 27141901
Standards IEC/EN 60898-1, IEC/EN 60947-2, UL 1077
Certification Agency EN, IEC, UL
Standardization Body EN, IEC, UL

Logistics 4

Shipping weight 0.4 kg
Ships from Türkiye
Dispatch 11 Nov
Stock In stock

Source: manufacturer data · Last verified: 30 Oct 2026

Documents

Documents for 2CDS253001R0255

No documents are on file for this part yet.

Ask us for the datasheet
Other ratings

All 9 ratings in ABB S200

ABB ABB S200 series page →
Other ratings in the same series
Motor power Rated current Part number Model no Stock Dispatch Price Add to cart
10 A 2CDS253001R0105 S203-B10 In stock $24.31
16 A 2CDS253001R0165 S203-B16 In stock $24.31
20 A 2CDS253001R0205 S203-B20 In stock $24.31
25 A 2CDS253001R0255 This part S203-B25 In stock $24.31
32 A 2CDS253001R0325 S203-B32 In stock $30.42
40 A 2CDS253001R0405 S203-B40 In stock $31.61
50 A 2CDS253001R0505 S203-B50 In stock $36.49
63 A 2CDS253001R0635 S203-B63 In stock $41.35
Certifications

Certifications and standards

  • CE
  • CSA
  • RoHS
  • UKCA
  • IEC/EN 60898-1
  • IEC/EN 60947-2
  • UL 1077
Quick answers

Questions about the S203-B25

What is the rated current of S203-B25?

The rated current of S203-B25 is 25 A.

Which supply voltage is S203-B25 rated for?

The rated operational voltage of S203-B25 is 230–400 V AC.

What is the HS code of S203-B25 for customs?

The tariff (HS) code on file for S203-B25 is 853620.

What is the EAN of S203-B25?

The EAN (GTIN) of S203-B25 is 4016779469203.

Where does S203-B25 ship from, and how fast?

S203-B25 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.

Guides

Guides for MCB

All guides for MCB
Reviews

Customer reviews

Series

ABB ABB S200

Brand
ABB
Series
ABB S200
Rated current
6–63 A
Supply voltage
230–400 V AC
Ratings listed
9
Series page →
Series

Other series in Miniature Circuit Breakers (MCB)

$24.31 In stock · 11 Nov
Quote

Get a Quote

S203-B25

Genuine parts

Genuine, factory-sealed parts

ABB · 2CDS253001R0255

Every part on Stoklink is new, unused and made by the manufacturer named on the page.

Condition
New and unused, in the manufacturer's factory-sealed packaging.
Sourced from
ABB and its authorised distributors.
Warranty
The manufacturer's warranty applies.
If a part is not genuine
We refund the full amount.

Added to cart Could not add to cart

View cart