Description
ABB S 203M-C32 MINIATURE CIRCUIT BREAKER (NEW OPEN BOX)
ABB STOTZ-KONTAKT GMBH
S 203M-C32
MINIATURE CIRCUIT BREAKER
2CDS 273 001 R0324
UIMP: 4 KV
UMAX: 462 V AC
CAT: A
MADE IN GERMANY
REF.NO: FKM1964
The ABB S 203M-C32 is a three-pole miniature circuit breaker (MCB) with a C-curve 32A trip characteristic, designed for reliable overcurrent and short-circuit protection in marine and industrial electrical distribution systems. Manufactured by ABB Stotz-Kontakt GmbH in Germany, this MCB is engineered for dependable performance in demanding onboard environments, protecting branch circuits, lighting panels, auxiliary machinery feeds, and control systems aboard vessels of all types.
Key Features
✓ Three-pole (3P) miniature circuit breaker with C-curve 32A rated current for balanced overcurrent protection
✓ Rated impulse withstand voltage (Uimp) of 4 kV and maximum operating voltage (Umax) of 462 V AC
✓ Category A energy limiting class for enhanced safety in marine electrical installations
✓ Manufactured by ABB Stotz-Kontakt GmbH in Germany, ensuring premium build quality and reliability
✓ Compact DIN-rail mounting design suitable for space-constrained marine switchboards and distribution panels
Marine Applications
Protection of branch circuits in main and emergency switchboards aboard commercial vessels
Overcurrent safeguarding for onboard lighting distribution panels and HVAC auxiliary circuits
Circuit protection for navigation, communication, and bridge console power supplies
Safeguarding pump motors, ventilation fans, and other auxiliary machinery starter circuits
Integration into engine room and machinery space sub-distribution boards for critical system protection
Why Marine Engineers Choose
Marine engineers trust ABB miniature circuit breakers for their proven reliability, consistent tripping performance under harsh conditions, and global availability of spare parts. The S 203M-C32 delivers dependable overcurrent protection with a well-established design backed by ABB’s extensive marine track record, making it an essential component for maintaining electrical safety and system uptime at sea.
Ideal For
Cargo vessels, bulk carriers, tankers, container ships, offshore support vessels, cruise ships, ferries, naval vessels, FPSOs, jack-up rigs, and any marine or offshore installation requiring reliable three-pole circuit protection in low-voltage distribution systems.
Technical Support & Compliance
We provide complete technical support including remote troubleshooting, onboard assistance, testing and commissioning, repair services, retrofit and upgrade solutions, and full integration support for ABB miniature circuit breakers and associated switchgear. To confirm compatibility with your specific installation, please share nameplate photos, existing part numbers, electrical drawings, system model and version details, vessel name and IMO number, and scope of work. All technical specifications and compatibility are subject to confirmation based on your vessel’s specific configuration and classification requirements.




