Description
ABB SACE ISOMAX S1N CIRCUIT BREAKER (USED)
ABB
SACE ISOMAX S1N
CIRCUIT BREAKER
ISOMAX S1
LU=125A UE=500V
IEC 947-2 CEI 60947-2
ITH (40°C) 125
IM 1250
MADE IN ITALY
REF.NO: FKM3817
The ABB Sace Isomax S1N is a robust moulded case circuit breaker (MCCB) rated at 125A and 500V, designed for reliable overcurrent protection and circuit isolation in demanding electrical distribution systems. Widely installed aboard commercial and naval vessels, this breaker plays a critical role in safeguarding switchboards, motor control centres, and essential power distribution panels against short circuits and overloads. Its proven performance under IEC 60947-2 standards makes it a trusted component in marine and industrial electrical networks.
Key Features
✓ ABB Sace Isomax S1N moulded case circuit breaker with 125A thermal current rating at 40°C
✓ Rated operational voltage of 500V, suitable for main and auxiliary marine distribution systems
✓ Magnetic trip threshold of 1250A for dependable short-circuit protection
✓ Manufactured in Italy to IEC 947-2 / CEI 60947-2 international standards
✓ Compact, high-performance design for straightforward installation in existing switchboard configurations
Marine Applications
Main and emergency switchboard circuit protection on merchant vessels
Motor control centre feeder protection for pumps, fans, and auxiliary machinery
Shore power connection panels and generator distribution boards
Essential and non-essential lighting and power distribution circuits
Engine room and accommodation electrical panel protection
Why Marine Engineers Choose
The ABB Sace Isomax S1N is favoured by marine engineers for its proven reliability, straightforward maintenance, and broad interchangeability within ABB switchgear lineups. Its compliance with internationally recognised standards and robust Italian manufacturing ensure consistent performance in the harsh conditions of marine electrical environments.
Ideal For
Bulk carriers, tankers, container ships, offshore support vessels, passenger vessels, naval auxiliaries, ferries, and any vessel or offshore platform utilising ABB Sace series switchgear and distribution systems.
Technical Support & Compliance
We provide complete support services including remote troubleshooting, onboard technical assistance, testing and commissioning, repair, retrofit and upgrade solutions, and full integration support for ABB Sace Isomax circuit breakers. To confirm compatibility and ensure the correct replacement unit, please share nameplate photographs, part numbers, electrical drawings, switchboard model and version details, vessel name and IMO number, and project scope. All specifications and fitment are subject to confirmation based on your vessel’s specific configuration.
