ABB S203M-C1UC: High-performance, current-limiting MCB for AC and DC applications, with flexible mounting and robust short circuit protection.
Product ModelS203M-C1UC
Material Number2CDS273061R0014
Product ID79633
Stock on Request
Last updated: 8/29/2026
Key Features
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1. Versatile ApplicationThe ABB S203M-C1UC is designed to handle both AC and DC applications, making it a versatile solution for various electrical needs.
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2. High Short Circuit Breaking CapacityWith a high inbuilt short circuit breaking capacity, the S203M-C1UC ensures reliable protection against short circuits, even at high voltages.
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3. Flexible Mounting OptionsThe MCB can be easily mounted on DIN rails using standard mounting rails like TH35-7.5 and TH35-15, providing flexibility in installation.
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4. Compliance with Major StandardsThe S203M-C1UC complies with IEC/EN 60898-1 and IEC/EN 60947-2, ensuring it meets the highest standards for safety and performance in residential, commercial, and industrial applications.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Standards
IEC/EN 60898-1 IEC/EN 60947-2
Tripping Characteristic
C
Rated Operational Voltage
acc. to IEC 60898-1 400 V AC acc. to IEC 60898-1 440 V DC acc. to IEC 60898-1 440 V acc. to IEC 60898-2 400 V AC acc. to IEC 60947-2 440 V AC acc. to IEC 60947-2 440 V DC
Operational Voltage
Maximum (Incl. Tolerance) 440 V AC Maximum (Incl. Tolerance) 500 V DC Minimum 12 V AC Minimum 12 V DC
Rated Insulation Voltage (Ui)
acc. to IEC/EN 60664-1 440 V
Rated Impulse Withstand Voltage (Uimp)
5
5. Robust Design and DurabilityBuilt with durable materials, the S203M-C1UC offers a long lifespan and high electrical endurance, withstanding up to 20,000 AC cycles and 20,000 mechanical cycles.
4 kV at 2000 m 5 kV at Sea Level 6.2 kV
Dielectric Test Voltage
50/60 Hz-1 min: 2 kV
Input Voltage Type
AC/DC
Rated Current (In)
1 A
Rated Short-Circuit Capacity
(AC) 10 kA (230 V AC) 10 kA (253 V AC) 10 kA (400 V AC) 10 kA (440 V DC) 10 kA (230 V) 10 kA (400 V) 10 kA
