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ABB S203D50 Miniature Circuit Breaker 10kA at 400VAC 3-P 50A 400/415VAC D-Curve

Product Code: S203D50

  • 50A MCB with 3 poles for commercial use
  • Breaking capacity of 10 kA at 400 VAC
  • IP20 protection, screw clamp terminals
  • Complies with AS/NZS and UL standards
  • Operates in -25 to 55°C environments
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Specifications

Cable Cross Section - Solid/Stranded (mm²) Top/Bottom - 35/35
Cable Cross Section - Flexible (mm²) Top/Bottom - 25/25
Busbar Cross Section (mm²) Top/Bottom - 10/10
Dimensions (mm) 88H x 69D x 52.5W
No. of Poles 3P
Pole Width (mm) 17.5
Power Loss (W) 2.9/Pole
Rated Conditional Short-Circuit Current - Inc (kA) 20
Pollution Degree 3
Rated Current (A) 50
Rated Frequency (Hz) 50/60
Rated Insulation Voltage (V) 440
Rated Impulse Withstand Voltage (kV) 4
Rated Short-Circuit Capacity - Icn (kA) 6
Rated Operational Voltage AC (V) 400
Breaking Capacity 400V AC - Icu (kA) 10
Maximum Operational Voltage AC (V) 440
Minimum Operational Voltage AC (V) 12
Minimum Operational Voltage DC (V) 12
Rated Voltage AC (V) 400
Poles 3P
Breaking Capacity (kA) 10 @400 V AC
Current Rating (A) 50
Family S200
AC Voltage (V) 400/415
Icn-Rated Short Circuit Capacity (kA) 6
Inc-Rated Conditional Short Circuit Capacity (kA) 20
Impulse Withstand Voltage (kV/1.2µS) 4
Product Type Miniature Circuit Breaker
Brand ABB
Series S200
Ambient Temperature -25 to 55 deg C Operation, -40 to 70 deg C Storage
Application Commercial and Industrial
Breaking Capacity 10 kA at 400 VAC
Bulbar Cross Section 10 sq-mm Top, 10 sq-mm Bottom
Cable Cross Section 35 sq-mm Top, 35 sq-mm Bottom
Collection S200
Curve Type D
Degree of Pollution IP3
Degree of Protection IP20
Depth 69 mm
Electrical Durability 10000 Cycles
Height 88 mm
Housing Colour RAL 7035 Grey
Housing Material Insulation Group II, RAL 7035
Impulse Voltage 4 kV
Mounting Type DIN Rail
Number of Poles 3
Pole Width 17.5 mm
Power Loss 2.9 W
Rated Current 50 A
Rated Frequency 50/60 Hz
Rated Impulse Withstand Voltage 4 kV
Rated Insulation Voltage 440 V
Rated Short Circuit Current 20 kA
Rated Voltage 400/415 VAC
Short Circuit Capacity 6 kA
Standards and Approvals AS/NZS 60898-1, AS/NZS 60947-2, UL 1077
Terminal Type Screw Clamp
Tightening Torque 2.8 N-m
Trip Curve D Curve
Width 52.5 mm
Wire Stripping Length 12.5 mm

Description

The ABB Miniature Circuit Breaker is a reliable and efficient solution for commercial and industrial applications. With a 6kA breaking capacity at 400VAC and 10kA at 125VDC, it provides robust protection against short circuits and thermal overload. This 3-pole circuit breaker has a rating of 50A and features D curve protection. Trust ABB for high-quality circuit breakers that meet your needs.

Documents

  • IPD Product Catalogue

    IPD Product Catalogue V17

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