Description
ABB SACE PR121/P ELECTRONIC TRIP UNIT PA5E6X16A (NEW WITHOUT BOX)
ABB
SACE PR121/P
ELECTRONIC TRIP UNIT
NR: PA5E6X16A
REF.NO: FKM9087
The ABB SACE PR121/P is a microprocessor-based electronic trip unit designed for use with ABB low-voltage air circuit breakers. Onboard vessels, electronic trip units are critical components within the main and emergency switchboard protection systems, providing precise overcurrent detection and configurable protection functions to safeguard generators, bus-ties, feeder circuits, and other essential electrical distribution equipment. Reliable tripping performance is vital for maintaining power continuity and protecting personnel and machinery at sea.
Key Features
✓ Microprocessor-based electronic trip unit offering programmable protection functions (L, S, I, G — typical settings subject to confirmation)
✓ Designed for integration with ABB SACE Emax series low-voltage air circuit breakers
✓ Adjustable current thresholds and time delays for flexible coordination within marine switchboard configurations
✓ Front-panel interface for intuitive setting adjustments and status indication
✓ Robust construction suitable for the demanding vibration, temperature, and humidity conditions found in marine electrical rooms
Marine Applications
Main switchboard generator circuit breaker protection on commercial and naval vessels
Emergency switchboard feeder protection ensuring compliance with classification society requirements
Bus-tie breaker protection for split-bus or parallel generator operation
Shore connection and cold-ironing breaker protection in port facilities and onboard panels
Motor feeder and large load circuit protection in engine rooms and cargo handling systems
Why Marine Engineers Choose
ABB SACE PR121/P electronic trip units are widely installed across global fleets and trusted for their proven reliability, ease of configuration, and full compatibility with the ABB Emax circuit breaker platform — making them a preferred choice for both planned maintenance replacements and urgent spares procurement.
Ideal For
Bulk carriers, tankers, container vessels, offshore support vessels, cruise ships, naval vessels, FPSOs, and any installation utilising ABB SACE Emax low-voltage air circuit breakers in marine or offshore electrical 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 trip units and associated switchgear. To confirm compatibility with your specific installation, please share nameplate photographs, existing trip unit part numbers, circuit breaker model and frame size, relevant single-line drawings, system model and firmware version if known, vessel name and IMO number, and full scope of work. All technical compatibility is subject to confirmation based on the information provided.
