S202MT-B20

Name: S202MT-B20
Brand: ABB
SKU: S202MT-B20

The ABB S202MT-B20 is a 2-pole miniature circuit breaker with a rated current of 20A, designed for rail mounting. It ensures reliable operation and meets international safety standards, making it suitable for industrial and commercial use.

Product ModelS202MT-B20

Material Number2CDS272445R0205

Product ID79379

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. High Performance and ReliabilityThe ABB S202MT-B20 is engineered to provide consistent and reliable performance, ensuring the safety of your electrical systems.
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2. Rail Mounting CapabilityDesigned for easy installation on DIN rail, this MCB simplifies your electrical setup and saves space.
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3. Compliance with International StandardsMeets IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, and CSA 22.2 No. 235 standards, ensuring compliance with global safety regulations.
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4. Versatile ApplicationSuitable for a wide range of applications, including industrial, commercial, and residential settings, making it a versatile choice for various electrical needs.
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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, IEC/EN 60947-2, UL 1077, CSA 22.2 No. 235

Tripping Characteristic

Rated Voltage (Ur)

440 V

Rated Operational Voltage

acc. to IEC 60898-1 400 V acc. to IEC 60898-1 440 V acc. to IEC 60947-2 230 V

Operational Voltage

Maximum (Incl. Tolerance) 253 V AC Maximum (Incl. Tolerance) 66 V DC Minimum 12 V AC Minimum 12 V DC

Rated Insulation Voltage (Ui)

5. Advanced Safety FeaturesEquipped with a delayed thermal tripping mechanism for overload protection and an electromechanical tripping mechanism for short circuit protection, providing comprehensive safety against electrical faults.

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

Dielectric Test Voltage

50/60 Hz-1 min: 2 kV

Input Voltage Type

Rated Current (In)

20 A

Rated Short-Circuit Capacity

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

Rated Ultimate Short-Circuit Breaking Capacity (Icu)

15 kA (230 V) 15 kA (400 V) 15 kA

Rated Service Short-Circuit Breaking Capacity (Ics)

11.2 kA

Rated Frequency (f)

50 / 60 Hz

Power Loss

5 W

Energy Limiting Class

Mechanical Endurance

20000 cycle

Number of Protected Poles

Number of Poles

Number of Modular Spacings per DIN Rail

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 I, 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 ... 16 mmÂ² Flexible 0.75 ... 25 mmÂ² Flexible 0.75 ... 25 mmÂ² Rigid 0.75 ... 35 mmÂ² Stranded 0.75 ... 35 mmÂ²

Installation Size

acc. to DIN 43880 3

Terminal Type

Screw Terminals

Ambient Air Temperature

Operation -40 ... +70 Â°C Storage -40 ... 75 Â°C

Degree of Protection

Enclosure with Cover IP20

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

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

0.115 kg

Built-In Depth (t2)

69 mm

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

2CDS272445R0205