Description
ABB B50 CONTACTOR (USED)
ABB
B50
CONTACTOR
65A
ITH=125A LEAC-1=100A UI=1000V~
600V MAX
AWG 1-8 CU STR 75â
AUX.CONT A600
REF.NO: FKM252
The ABB B50 is an industrial-grade contactor designed for reliable electromagnetic switching of electrical loads in demanding marine and industrial environments. Rated at 65A with an ITH of 125A and a maximum voltage of 600V AC, it is well-suited for motor control, load switching, and power distribution duties onboard commercial vessels and offshore platforms. As part of ABB’s established contactor range, the B50 is widely used across shipboard electrical panels and automation systems.
Key Features
✓ Rated operational current of 65A with ITH of 125A, supporting high-current switching requirements
✓ Maximum system voltage of 600V AC, compatible with standard marine and industrial power supply voltages
✓ Wide conductor acceptance range AWG 1–8, accommodating stranded copper cabling typical in marine installations
✓ Auxiliary contact rated at A600, enabling integration with control, interlock, and monitoring circuits
✓ ABB manufacture — a globally recognised standard in marine electrical switchgear and control equipment
Marine Applications
Motor control and protection panels for pumps, fans, blowers, and compressors in engine rooms
Main and auxiliary switchboard load control and power distribution circuits
Deck machinery and cargo handling automation control panels
HVAC and ventilation system motor starters aboard passenger and cargo vessels
General-purpose electrical control panels in marine and offshore industrial installations
Why Marine Engineers Choose
ABB contactors are a standard specification in marine electrical engineering due to their proven reliability in high-cycle switching environments, broad compatibility with IEC-compliant systems, and the global availability of technical documentation and replacement parts — making the B50 a dependable choice for both original equipment and refit applications.
Ideal For
Cargo vessels, bulk carriers, tankers, container ships, offshore support vessels, ferries, fishing vessels, and industrial marine platforms requiring reliable contactor solutions for motor control and power distribution panels.
Technical Support & Compliance
Complete solutions are available including remote troubleshooting, onboard installation and commissioning support, testing and verification, repair, retrofit and upgrade assistance, and integration support for switchboard and control panel applications. Compatibility with your specific installation is subject to confirmation — please provide nameplate photographs, part numbers, wiring diagrams, system model and version details, and vessel name or IMO number where available so we can confirm suitability prior to supply.
