S202M-B50

Name: S202M-B50
Brand: ABB
SKU: S202M-B50

The ABB S202M-B50 is a versatile 2-pole, 50A miniature circuit breaker ideal for Curve B applications. It combines thermal tripping for overload protection with electromechanical tripping for short circuit protection, providing comprehensive safety and reliability in electrical distribution systems.

Product ModelS202M-B50

Material Number2CDS272001R0505

Product ID79983

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Comprehensive Safety FeaturesThe ABB S202M-B50 is equipped with both thermal tripping for overload protection and electromechanical tripping for short circuit protection, ensuring maximum safety in electrical distribution systems.
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2. Versatile ApplicationDesigned for Curve B applications, this miniature circuit breaker is suitable for a wide range of electrical installations, from residential to commercial settings.
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3. High ReliabilityBuilt with high-quality components, the S202M-B50 offers reliable performance and long-lasting operation, minimizing the risk of electrical failures.
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4. Easy InstallationThe S202M-B50 features a user-friendly design, making it easy to install and integrate with existing electrical systems. Its compact size also ensures minimal space requirements.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Standards

IEC/EN 60898-1 CSA 22.2 No. 235 IEC/EN 60947-2 UL 1077

Tripping Characteristic

Rated Operational Voltage

acc. to IEC 60898-1 400 V AC acc. to IEC 60898-1 400 V acc. to IEC 60947-2 440 V AC

Operational Voltage

Maximum (Incl. Tolerance) 125 V DC 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)

5. Compliance with International StandardsThe ABB S202M-B50 meets all major international and local standards, including IEC/EN 60898-2 and IEC/EN 60947-2, ensuring compliance with regulatory requirements.

4 kV at 2000 m 5 kV at Sea Level 6.2 kV

Dielectric Test Voltage

50/60 Hz-1 min: 2 kV

Input Voltage Type

AC/DC

Rated Current (In)

50 A

Rated Short-Circuit Capacity

(AC) 10 kA (230 V AC) 10 kA (400 V AC) 10 kA (400 V) 10 kA

Rated Ultimate Short-Circuit Breaking Capacity (Icu)

(230 V AC) 25 kA (400 V AC) 15 kA (440 V AC) 15 kA (230 V) 25 kA (400 V) 15 kA

Rated Conditional Short-Circuit Current (Inc)

(230 V) 10 kA (400 V) 20 kA

Rated Service Short-Circuit Breaking Capacity (Ics)

(133 V AC) 15 kA (230 V AC) 7.5 kA

Frequency (f)

50 Hz

Rated Frequency (f)

50 / 60 Hz

Power Loss

6.5 W at Rated Operating Conditions per Pole 3.25 W

Power Supply Connection

Arbitrary

Contact Position Indication

Red ON / Green OFF

Energy Limiting Class

Electrical Endurance

20000 AC cycle 10000 AC cycle

Mechanical Endurance

20000 cycle

Number of Protected Poles

Number of Poles

Overvoltage Category

III

Tightening Torque

2.8 NÂ·m

Screw Terminal Type

Failsafe Bi-directional Cylinder-lift Terminal

Actuator Marking

I / O

Actuator Material

Insulation Group II, Black, Sealable

Housing Material

Insulation Group II, RAL 7035

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

Recommended Screw Driver

Pozidriv 2

Accessories Available

Yes

Connecting Capacity

Busbar 10 / 10 mmÂ² Flexible with Ferrule 0.75 ... 25 mmÂ² Flexible 0.75 ... 25 mmÂ² Flexible 0.75 ... 25 mmÂ² Rigid 0.75 ... 35 mmÂ² Rigid 0.75 ... 35 mmÂ² Stranded 0.75 ... 35 mmÂ²

Installation Size

acc. to DIN 43880 1

Terminal Type

Screw Terminals

Ambient Air Temperature

Operation -25 ... +55 Â°C Storage -40 ... +70 Â°C

Reference Ambient Air Temperature

30 Â°C

Degree of Protection

IP20 IP40 Enclosure with Cover IP40

Pollution Degree

Environmental Conditions

28 cycles with 55 Â°C / 90-96 % and 25 Â°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

Maximum Operating Voltage UL/CSA

125 V DC 480Y/277 V AC

Interrupting Rating acc. to UL1077

(125 V DC) 10 kA (277 V AC) 6 kA (480Y / 277 V AC) 6 kA

Connecting Capacity UL/CSA

Busbar 14-8 AWG Conductor 14-4 AWG

Tightening Torque UL/CSA

18 inÂ·lb

Width in Number of Modular Spacings

2.0

Product Net Width

35 mm

Product Net Height

88 mm

Product Net Depth / Length

69 mm

Product Net Weight

0.25 kg

Pole Net Weight

0.125 kg

Built-In Depth (t2)

69 mm

Dimension Diagram

2CDC022007F0010

ETIM 8

EC000042 - Miniature circuit breaker (MCB)

ETIM 9

EC000042 - Miniature circuit breaker (MCB)

WEEE Category

5. Small Equipment (No External Dimension More Than 50 cm)

WEEE B2C / B2B

Business To Business

CN8

8536 20 10

UNSPSC

39121603

eClass

V11.0 : 27141901

IDEA Granular Category Code (IGCC)

4897 >> Miniature circuit breakers

Object Classification Code

Manufacturer ID

2CDS272001R0505