S204M-B4DC

Name: S204M-B4DC
Brand: ABB
SKU: S204M-B4DC

"ABB S204M-B40UC: A high-performance miniature circuit breaker for DC and AC applications. 4P, 40A, 10kA breaking capacity. Ideal for commercial and residential use, ensuring reliability and flexibility in your electrical setup."

Product ModelS204M-B4DC

Material Number2TAZ112400R0045

Product ID79138

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Versatile Application\"Suitable for both DC and AC applications, the ABB S204M-B40UC offers unparalleled versatility in your electrical setup.\"
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2. High Short-Circuit Breaking Capacity\"With a high short-circuit breaking capacity of 10kA, this MCB ensures your electrical system is protected against sudden surges.\"
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3. Compliance with International Standards\"Compliant with major international standards like IEC/EN 60898-1 and IEC/EN 60947-2, ensuring your equipment meets global safety requirements.\"
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4. Flexible Installation\"Easy to install and mount on DIN rail, the ABB S204M-B40UC is a simple and flexible solution for your 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 60898-2 GB 10963 IEC/EN 60947-2 GB 14048

Tripping Characteristic

Rated Voltage (Ur)

440 V

Rated Operational Voltage

440 V DC

Rated Insulation Voltage (Ui)

440 V

Rated Impulse Withstand Voltage (Uimp)

4 kV

5. Reliability and Durability\"Designed for reliability and durability, this miniature circuit breaker withstands harsh environmental conditions and provides long-lasting performance.\"

Input Voltage Type

Rated Current (In)

4 A

Rated Short-Circuit Capacity

(400 V) 10 kA

Rated Ultimate Short-Circuit Breaking Capacity (Icu)

(440 V DC) 10 kA

Rated Conditional Short-Circuit Current (Inc)

(400 V) 10 kA

Frequency (f)

0...0 Hz

Rated Frequency (f)

0-0 Hz

Energy Limiting Class

Number of Protected Poles

Number of Poles

Overvoltage Category

III

Release Type

Options Provided

DC application

Accessories Available

Yes

Connecting Capacity

Flexible 0 ... 25 mmÂ² Rigid 0 ... 35 mmÂ²

Ambient Temperature

-25...55 Â°C

Ambient Air Temperature

Operation -25...55 Â°C

Degree of Protection

IP20

Pollution Degree

Width in Number of Modular Spacings

Product Net Width

0.070 m

Product Net Height

0.088 m

Product Net Depth / Length

0.044 m

Product Net Weight

0.500 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

85362010

eClass

V11.0 : 27141901

Object Classification Code

Manufacturer ID

2TAZ112400R0045