Reliable DC and AC protection with high short-circuit breaking capacity. Flexible design for various applications. Compliant with major international standards.
Product ModelS203M-Z6UC
Material Number2CDS273061R0378
Product ID79381
Stock on Request
Last updated: 8/29/2026
Key Features
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1. Reliable ProtectionThe ABB S203M-Z6UC provides robust protection against short circuits and overloads, ensuring the safety of your electrical system.
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2. Flexible DesignThis miniature circuit breaker is designed to work seamlessly with both DC and AC applications, making it a versatile solution for various settings.
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3. High Short-Circuit Breaking CapacityWith a high short-circuit breaking capacity, the S203M-Z6UC can handle even the most demanding electrical conditions, providing reliable operation.
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4. Compliance with International StandardsThe S203M-Z6UC is compliant with major international standards such as IEC/EN 60898-1 and IEC/EN 60947-2, ensuring it meets the highest safety and performance 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
Z
Rated Operational Voltage
acc. to IEC 60898-1 400 V AC acc. to IEC 60898-1 440 V acc. to IEC 60947-2 440 V AC acc. to IEC 60947-2 440 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
5. Easy Installation and MaintenanceDesigned for easy installation and maintenance, the S203M-Z6UC features a compact design that fits perfectly on DIN rails, making it a convenient choice for both new installations and upgrades.
AC/DC
Rated Current (In)
6 A
Rated Short-Circuit Capacity
(AC) 10 kA (230 V AC) 10 kA (400 V AC) 10 kA (230 V) 10 kA (400 V) 10 kA
