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ABB S203-B4NA MCB - S200P - 3+NP - B - 4A

MPN: 2CDS253103R0045

Alt. SKU: S203-B4NA

Special Price £105.84 £88.20 Regular Price £192.43

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Why Choose the S203-B4NA [2CDS253103R0045]

System pro M compact S200 miniature circuit breakers are current limiting. They have two different tripping mechanisms, the delayed thermal tripping mechanism for overload protection and the electromechanic tripping mechanism for short circuit protection. They are available in different characteristics (B,C,D,K,Z), configurations (1P,1P+N,2P,3P,3P+N,4P), breaking capacities (up to 6 kA at 230/400 V AC) and rated currents (up to 63A). All MCBs of the product range S200 comply with IEC/EN 60898-1, IEC/EN 60947-2, UL1077 allowing the use for residential, commercial and industrial applications. Bottom-fitting auxiliary contact can be mounted on S200 to save 50% space.

Technical Specification

  • Function: Current limiting miniature circuit breaker with thermal overload and electromechanic short circuit tripping.
  • Rated Voltage: 230/400/440 V AC; max operating voltage UL/CSA 110 V DC / 480Y/277 V AC.
  • Rated Current: Up to 63A (specific product rated 4 A).
  • Breaking Capacity: Ultimate up to 20 kA (230 V AC), 10 kA (400/440 V AC); service up to 15 kA (230 V AC), 7.5 kA (400/440 V AC).
  • Contact Configuration: 3 poles + neutral (3P+N) with contact position indicator (red ON/green OFF).
  • Terminal Type and Capacity: Screw terminals; supports flexible (0.75–25 mm²), rigid and stranded wires up to 35 mm²; torque 2.8 N·m.
  • Insulation & Dielectric Strength: Dielectric test voltage 2 kV at 50/60 Hz for 1 min; insulation group II actuator.
  • Mechanical & Electrical Endurance: 20,000 cycles each.
  • Actuator Markings: I / O, sealable black material.

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"Specified by UK panel builders for dependable control." Controls Engineer, UK

Frequently Asked Questions

What are the tripping mechanisms of the S200 miniature circuit breakers?
The S200 miniature circuit breakers feature a delayed thermal tripping mechanism for overload protection and an electromechanic tripping mechanism for short circuit protection.
What is the maximum breaking capacity of the S200 circuit breakers?
The ultimate breaking capacity is up to 20 kA at 230 V AC and 10 kA at 400/440 V AC.
What configurations are available for the S200 circuit breakers?
The S200 circuit breakers are available in configurations of 1P, 1P+N, 2P, 3P, 3P+N, and 4P.
What is the rated current range for the S200 circuit breakers?
The rated current for the S200 circuit breakers is up to 63A, with specific products rated at 4 A.
What types of wires can be connected to the S200 circuit breakers?
The S200 circuit breakers support flexible wires from 0.75 to 25 mm², as well as rigid and stranded wires up to 35 mm².
Are the S200 circuit breakers compliant with any standards?
Yes, all S200 circuit breakers comply with IEC/EN 60898-1, IEC/EN 60947-2, and UL1077. See the manufacturer's data sheet for standards and approvals.
Can auxiliary contacts be mounted on the S200 circuit breakers?
Yes, bottom-fitting auxiliary contacts can be mounted on the S200 circuit breakers, saving 50% space.
More Information
Manufacturer Part Number 2CDS253103R0045
Amperage 4A
Number of Poles 4 Pole
Manufacturer ABB
Alternative Product SKU S203-B4NA
Barcode 4016779926591
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