S203M-Z0.5DC

Name: S203M-Z0.5DC
Brand: ABB
SKU: S203M-Z0.5DC

The ABB S203M-Z0.5DC miniature circuit breaker provides robust DC power protection with a tripping characteristic of Z and a rated current of 0.5A. It features advanced tripping mechanisms and meets all major international standards for safety and reliability.

Product ModelS203M-Z0.5DC

Material Number2TAZ112300R0158

Product ID78220

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Advanced Tripping MechanismsThe S203M-Z0.5DC features both delayed thermal tripping for overload protection and electromechanical tripping for short circuit protection, ensuring reliable and efficient operation.
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2. Compliance with International StandardsThis miniature circuit breaker complies with IEC/EN 60898-1 and IEC/EN 60947-2, making it suitable for residential, commercial, and industrial applications worldwide.
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3. High ReliabilityDesigned with a high inbuilt short circuit breaking capacity and robust electrical endurance, the S203M-Z0.5DC ensures continuous operation even under harsh conditions.
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4. Compact DesignThe compact design of the S203M-Z0.5DC allows for easy installation and saves space, making it ideal for modern electrical systems.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Standards

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. Versatile ApplicationWith a rated operational voltage of 12 V DC to 440 V DC, the S203M-Z0.5DC is versatile and can be used in a wide range of DC power applications, from small devices to complex systems.

Rated Current (In)

0.5 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

Power Loss

6.6 W

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

0.053 m

Product Net Height

0.088 m

Product Net Depth / Length

0.044 m

Product Net Weight

0.375 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

2TAZ112300R0158