AurFort
ABBS200MABB S203M-C50, manufacturer catalog image

ABB catalog image for this SKU; may represent the product family.

MINIATURE CIRCUIT BREAKER

S203M-C50

SKU 2CDS273001R0504

ABB S203M-C50 is a 3P miniature circuit breaker in the S200M range, rated at 50 A with a C tripping characteristic. It provides overload and short-circuit protection.

50 ARated current
3PPoles
CTrip curve
PRODUCT DATA

Technical specifications

Source: ABB product catalog.
Verified September 06, 2026.

2CDS273001R0504 — selected manufacturer specifications
Rated Current (In)50 A
Number of Poles3P
Number of Protected Poles3
Tripping CharacteristicC
Input Voltage TypeAC/DC
Rated Operational Voltageacc. to IEC 60898-1 400 V AC acc. to IEC 60947-2 440 V AC
Operational VoltageMaximum (Incl. Tolerance) 440 V AC Minimum 12 V AC Minimum 12 V DC
Rated Short-Circuit Capacity(AC) 10 kA (230 V AC) 10 kA
Rated Ultimate Short-Circuit Breaking Capacity (Icu)(230 V AC) 25 kA (400 V AC) 15 kA (440 V AC) 15 kA (230 V) 25 kA (400 V) 15 kA
Rated Service Short-Circuit Breaking Capacity (Ics)(133 V AC) 15 kA (230 V AC) 7.5 kA
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
Rated Frequency (f)50 / 60 Hz
StandardsIEC/EN 60898-1 CSA 22.2 No. 235 IEC/EN 60947-2 UL 1077
Degree of ProtectionIP20 IP40 Enclosure with Cover IP40
Terminal TypeScrew Terminals
Tightening Torque2.8 N·m
Product Net Width52.5 mm
Product Net Height88 mm
Product Net Depth / Length69 mm
Product Net Weight0.36 kg

For complete electrical ratings, applicable standards, connection requirements and installation instructions, consult the official ABB reference ↗.