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ABB s203m-b20 mcb s200m 3p b type 20amp

MPN: 2CDS273001R0205

Alt. SKU: S203M-B20

Special Price £63.31 £52.76 Regular Price £115.10

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Why Choose the S203M-B20 [2CDS273001R0205]

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 overload and electromechanical short circuit tripping.
  • Voltage Rating: Up to 440 V AC.
  • Current Rating: Up to 63 A.
  • Contact Configuration: 3 poles (3P) with red ON / green OFF indication.
  • Breaking Capacity: Ultimate up to 25 kA at 230 V AC, 15 kA at 400/440 V AC.
  • Terminal Type: Screw terminals with failsafe bi-directional cylinder-lift design.
  • Connecting Capacity: Busbar 10/10 mm²; flexible cables 0.75–25 mm²; rigid cables 0.75–35 mm².
  • Electrical Endurance: 20,000 AC cycles.
  • Mechanical Endurance: 20,000 cycles.
  • Tightening Torque: 2.8 N·m (metric), 18 in·lb (UL/CSA).

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"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 maximum breaking capacity is up to 25 kA at 230 V AC and 15 kA at 400/440 V AC.
What is the rated current range for the S200M circuit breakers?
The rated current for the S200M circuit breakers is up to 63 A.
What types of cables can be connected to the S200M circuit breakers?
The S200M circuit breakers can connect busbars of 10/10 mm², flexible cables from 0.75–25 mm², and rigid cables from 0.75–35 mm².
Can auxiliary contacts be mounted on the S200M circuit breakers?
Yes, bottom-fitting auxiliary contacts can be mounted on the S200M to save 50% space.
What standards do the S200M circuit breakers comply with?
All S200M circuit breakers comply with IEC/EN 60898-1 and IEC/EN 60947-2. See the manufacturer's data sheet for standards and approvals.
More Information
Manufacturer Part Number 2CDS273001R0205
Amperage 20A
Number of Poles 3 Pole
Trip Curve Type Type B 10KA
HS Code 85362010
Country of Manufacture Germany
Manufacturer ABB
Alternative Product SKU S203M-B20
Barcode 4016779549707
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