S204MR-K8

Name: S204MR-K8
Brand: ABB
SKU: S204MR-K8

"ABB S204MR-K8: A reliable 4P miniature circuit breaker rated at 8 A for K-rated systems. Ideal for industrial and commercial applications, ensuring safe and efficient electrical distribution."

Product ModelS204MR-K8

Material Number2CDS274437R0407

Product ID78037

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
Feature1. Reliability and Safety\n- \"The ABB S204MR-K8 is engineered to provide reliable and safe electrical distribution, ensuring your system operates without interruptions or hazards.\"\",\"2. Efficient Operation\n- \"Designed for K-rated systems, this circuit breaker ensures efficient operation, minimizing energy loss and maximizing system performance.\"\",\"3. Versatile Application\n- \"Perfect for various industrial and commercial settings, the S204MR-K8 is versatile and adaptable to different electrical requirements.\"\",\"4. High-Quality Construction\n- \"Built with high-quality materials, the S204MR-K8 offers durability and longevity, reducing the need for frequent replacements.\"\",\"5. Easy Installation\n- \"Easy to install and maintain, the S204MR-K8 simplifies your electrical setup, saving time and effort in the process.\"

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

Rated Current (In)

8 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

Power Loss

5.6 W at Rated Operating Conditions per Pole 1.4 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

(480Y / 277 V AC) 10 kA

Width in Number of Modular Spacings

4.0

Product Net Width

70 mm

Product Net Height

100 mm

Product Net Depth / Length

71 mm

Product Net Weight

0.56 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

2CDS274437R0407