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ABB s203m-k50na mcb s200p 4p k type 50amp

MPN: 2CDS273103R0577

Alt. SKU: S203M-K50NA

Special Price £209.45 £174.54 Regular Price £380.82

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Why Choose the S203M-K50NA [2CDS273103R0577]

System pro M compact S200M 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 10 kA at 230/400 V AC) and rated currents (up to 63A). All MCBs of the product range S200M comply with IEC/EN 60898-1 and IEC/EN 609 47-2, allowing the use for residential, commercial and industrial applications. Bottom-fitting auxiliary contact can be mounted on S200M to save 50% space.

Technical Specification

  • Function: Current limiting miniature circuit breaker with thermal and electromechanical tripping mechanisms for overload and short circuit protection.
  • Voltage Ratings: Up to 440 V AC; UL/CSA max operating voltage 480Y / 277 V AC, 125 V DC.
  • Current Rating: 50 A rated current.
  • Contact Configuration: 3 poles + neutral (3P+N) with contact position indication (red ON / green OFF).
  • Breaking Capacity: Ultimate breaking capacity up to 25 kA at 230 V AC and 15 kA at 400/440 V AC.
  • Terminal Type and Capacity: Screw terminals; supports busbar 10/10 mm², flexible conductors 0.75–25 mm², rigid conductors 0.75–35 mm².
  • Mechanical Endurance: 20,000 operational cycles.
  • Insulation and Dielectric Strength: Dielectric test voltage 2 kV (50/60 Hz, 1 min); actuator insulation group II.

Trusted By Customers Worldwide

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

Frequently Asked Questions

What are the tripping mechanisms used in the S200M miniature circuit breakers?
The S200M miniature circuit breakers utilise a delayed thermal tripping mechanism for overload protection and an electromechanical tripping mechanism for short circuit protection.
What is the maximum breaking capacity of the S200M circuit breakers?
The ultimate breaking capacity is up to 25 kA at 230 V AC and 15 kA at 400/440 V AC.
What are the available configurations for the S200M circuit breakers?
The S200M circuit breakers are available in configurations of 1P, 1P+N, 2P, 3P, 3P+N, and 4P.
What is the rated current for the S200M circuit breakers?
The S200M circuit breakers have a rated current of up to 63 A.
What types of conductors can be used with the S200M circuit breakers?
The S200M circuit breakers support busbar 10/10 mm², flexible conductors from 0.75 to 25 mm², and rigid conductors from 0.75 to 35 mm².
Are the S200M circuit breakers compliant with any standards?
Yes, all MCBs of the S200M range comply with IEC/EN 60898-1 and IEC/EN 609 47-2. See the manufacturer's data sheet for standards and approvals.
What is the mechanical endurance of the S200M circuit breakers?
The mechanical endurance is rated for 20,000 operational cycles.
More Information
Manufacturer Part Number 2CDS273103R0577
Amperage 50A
Number of Poles 4 Pole
HS Code 85362010
Country of Manufacture Germany
Manufacturer ABB
Alternative Product SKU S203M-K50NA
Barcode 4016779659604
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