S201MR-K50

Name: S201MR-K50
Brand: ABB
SKU: S201MR-K50

The ABB S201MR-K50 Mini Circuit Breaker is a reliable, compact solution for electrical safety. Rated for 50 amps and single pole, it meets UL 1077 standards, ensuring protection and efficiency in various applications.

Product ModelS201MR-K50

Material Number2CDS271437R0577

Product ID80516

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable ProtectionThe ABB S201MR-K50 Mini Circuit Breaker provides reliable protection for your electrical systems, ensuring safety and efficiency in various applications.
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2. Compact DesignIts compact design makes it ideal for use in tight spaces, making it a versatile solution for different electrical setups.
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3. UL 1077 CompliantMeets UL 1077 standards, ensuring that the breaker adheres to stringent safety protocols, providing peace of mind for users.
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4. Efficient OperationDesigned to handle 50 amps, this single-pole circuit breaker operates efficiently, handling the demands of your electrical system with ease.
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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

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 60947-2 230 V AC

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

5. Versatile ApplicationSuitable for a wide range of applications, from residential to commercial use, the ABB S201MR-K50 Mini Circuit Breaker is a versatile and reliable choice for electrical safety.

Rated Current (In)

50 A

Rated Short-Circuit Capacity

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

Rated Ultimate Short-Circuit Breaking Capacity (Icu)

(230 V AC) 15 kA (400 V AC) 10 kA (400 V) 6 kA

Rated Conditional Short-Circuit Current (Inc)

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

Rated Service Short-Circuit Breaking Capacity (Ics)

(230 V AC) 10 kA

Rated Frequency (f)

50 / 60 Hz

Power Loss

1.8 W at Rated Operating Conditions per Pole 1.8 W

Energy Limiting Class

Number of Protected Poles

Number of Poles

Overvoltage Category

III

Accessories Available

Yes

Connecting Capacity

Flexible with Ferrule 0.75 ... 25 mmÂ² Flexible 0.75 ... 25 mmÂ² Flexible 0.75 ... 25 mmÂ² Rigid 0.75 ... 35 mmÂ² Stranded 0.75 ... 35 mmÂ²

Terminal Type

Double Clamp

Ambient Air Temperature

Operation -25 ... +55 Â°C

Degree of Protection

IP20

Pollution Degree

Interrupting Rating acc. to UL1077

(277 V AC) 10 kA

Width in Number of Modular Spacings

1.0

Product Net Width

17.5 mm

Product Net Height

100 mm

Product Net Depth / Length

71 mm

Product Net Weight

0.14 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

Manufacturer ID

2CDS271437R0577