S201M-K8UC

Name: S201M-K8UC
Brand: ABB
SKU: S201M-K8UC

The ABB S201M-K8UC is a high-performance miniature circuit breaker suitable for both DC and AC applications. It features a high inbuilt short circuit breaking capacity, flexible mounting options, and compliance with major international standards like IEC/EN 60947-2 and UL 1077. This compact MCB is perfect for supplementary protective devices and energy limiting circuits, ensuring reliable protection against overloads and short-circuits.

Product ModelS201M-K8UC

Material Number2CDS271061R0407

Product ID79571

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. High PerformanceThe ABB S201M-K8UC is designed to provide high-performance circuit protection, ensuring reliable operation in a wide range of applications.
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2. Flexible Mounting OptionsThis miniature circuit breaker offers flexible mounting options, including DIN rail mounting, making it easy to integrate into various electrical systems.
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3. Compliance with International StandardsThe S201M-K8UC meets major international standards such as IEC/EN 60947-2 and UL 1077, ensuring it is compliant with global safety regulations.
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4. High Inbuilt Short Circuit Breaking CapacityWith a high inbuilt short circuit breaking capacity, this MCB provides robust protection against short-circuits and overloads, ensuring the safety of electrical equipment.

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 60898-1 230 V AC acc. to IEC 60898-1 220 V acc. to IEC 60947-2 253 V AC acc. to IEC 60947-2 220 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

5. Compact DesignThe compact design of the S201M-K8UC makes it ideal for space-constrained applications, providing efficient and reliable circuit protection in a small footprint.

Rated Current (In)

8 A

Rated Short-Circuit Capacity

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

Rated Ultimate Short-Circuit Breaking Capacity (Icu)

(110 V DC) 20 kA (220 V DC) 10 kA (230 V AC) 10 kA (253 V AC) 10 kA (230 V) 10 kA

Rated Conditional Short-Circuit Current (Inc)

(230 V) 10 kA

Rated Service Short-Circuit Breaking Capacity (Ics)

(110 V DC) 10 kA (230 V AC) 10 kA

Rated Frequency (f)

50 / 60 Hz DC

Power Loss

1.26 W at Rated Operating Conditions per Pole 1.26 W

Power Supply Connection

Please Note Polarity of Device

Contact Position Indication

Red ON / Green OFF

Energy Limiting Class

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 I, RAL 7035

Options Provided

Universal current

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

Remarks

Please note polarity of device

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 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

Degree of Protection

IP20 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

Environmental Information

2CDK400030D201

Maximum Operating Voltage UL/CSA

250 V DC 480Y / 277 V AC

Interrupting Rating acc. to UL1077

(110 V DC) 10 kA (220 V AC) 10 kA (250 V DC) 10 kA (253 V AC) 6 kA (480Y / 277 V AC) 10 kA

Connecting Capacity UL/CSA

Busbar 14-8 AWG Conductor 14-4 AWG

Tightening Torque UL/CSA

25 inÂ·lb

Width in Number of Modular Spacings

1.0

Product Net Width

17.5 mm

Product Net Height

85 mm

Product Net Depth / Length

69 mm

Product Net Weight

0.125 kg

Pole Net Weight

0.125 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)

4899 >> Miniature circuit breaker (MCB) screw-in model

Object Classification Code

Manufacturer ID

2CDS271061R0407