S203MR-K1.6

Name: S203MR-K1.6
Brand: ABB
SKU: S203MR-K1.6

The ABB S203MR-K1.6 is a 3-pole miniature circuit breaker with a 1A rating and 10kA interrupting capacity. It meets UL 1077 and CSA 22.2 No. 235 standards, ensuring reliable electrical operation and safety.

Product ModelS203MR-K1.6

Material Number2CDS273437R0257

Product ID80446

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliability and SafetyThe ABB S203MR-K1.6 is designed to meet stringent safety standards, including UL 1077 and CSA 22.2 No. 235, ensuring reliable and safe electrical operation.
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2. High Interrupting CapacityWith an interrupting capacity of 10kA, this circuit breaker can handle high short-circuit currents effectively, protecting your electrical system from damage.
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3. Versatile ApplicationSuitable for a wide range of applications, the S203MR-K1.6 is versatile and can be used in various electrical systems, from residential to commercial settings.
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4. Compact DesignThe compact design of the S203MR-K1.6 makes it easy to install and integrate into existing electrical systems, minimizing space requirements.

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 60947-2 400 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. Compliance with StandardsThe product adheres to international standards such as IEC/EN 60947-2 and IEC 60898-1, ensuring compatibility and reliability in global applications.

Rated Current (In)

1.6 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) 10 kA (400 V AC) 15 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)

(400 V AC) 11.2 kA

Rated Frequency (f)

50 / 60 Hz

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

(480Y / 277 V AC) 10 kA

Width in Number of Modular Spacings

3.0

Product Net Width

52.5 mm

Product Net Height

100 mm

Product Net Depth / Length

71 mm

Product Net Weight

0.42 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

Manufacturer ID

2CDS273437R0257