Description
ABB T75 DU THERMAL OVERLOAD RELAY (USED)
ABB
T75 DU
THERMAL OVERLOAD RELAY
IEC 947-4-1 / UI=660VAC
TRIP CLASS 10A
VDE 0660
NF C 63-650
MADE IN GERMANY
REF.NO: FKM400
The ABB T75 DU is a robust thermal overload relay engineered to protect electric motors and associated circuits from sustained overcurrent conditions. Widely deployed in marine and industrial electrical systems, this relay plays a critical role in safeguarding motors that drive pumps, fans, compressors, and auxiliary machinery found throughout vessel engine rooms and deck equipment installations. Reliable motor protection is essential for operational continuity and compliance with marine classification requirements.
Key Features
✓ Thermal overload protection with Trip Class 10A for dependable motor circuit safeguarding
✓ Rated insulation voltage of 660VAC, suitable for marine-grade power distribution systems
✓ Manufactured to IEC 947-4-1, VDE 0660, and NF C 63-650 standards
✓ German-engineered ABB quality ensuring long service life in demanding environments
✓ Compatible with ABB contactor ranges – exact current range subject to confirmation based on specific DU variant
Marine Applications
Motor protection for seawater cooling pumps, ballast pumps, and fire pumps
Overload protection in ventilation fan and air handling unit motor circuits
Safeguarding compressor motors in refrigeration and HVAC systems onboard
Protection of auxiliary machinery motors in engine room switchboards
Deck machinery and cargo handling equipment motor circuit protection
Why Marine Engineers Choose
ABB thermal overload relays are trusted across global fleets for their proven reliability, precise trip characteristics, and seamless integration with ABB contactors. The T75 DU delivers consistent overcurrent protection critical for maintaining vessel uptime and protecting valuable rotating equipment in harsh marine environments.
Ideal For
Merchant vessels, bulk carriers, tankers, container ships, offshore support vessels, passenger ferries, naval auxiliaries, and any vessel employing ABB motor control switchgear.
Technical Support & Compliance
We provide complete support solutions including remote troubleshooting, onboard technical assistance, testing and commissioning, repair services, retrofit and upgrade consultation, and full integration support for ABB motor protection equipment. To confirm compatibility with your specific installation, please share nameplate photographs, part numbers, electrical drawings, system model and version details, vessel name and IMO number, and scope of work required. All technical specifications and fitment are subject to confirmation based on your vessel’s configuration.
