Description
ABB SACE PR120/D-M COMMUNICATION MODULE (NEW WITHOUT BOX)
ABB
SACE
PR120/D-M
COMMUNICATION MODULE
MODBUS FOR PR122-PR123 E1-6
PR120/D-M COMMUNICATION MODULE IS THE SOLUTION FOR CONNECTING EMAX TO A MODBUS NETWORK, ALLOWING THE REMOTE SUPERVISION AND CONTROL OF THE CIRCUIT-BREAKER. IT IS SUITABLE FOR PR122/P AND PR123/P TRIP UNITS.
REF: FKM455
The ABB SACE PR120/D-M is a Modbus communication module designed for integration with ABB Emax series air circuit breakers equipped with PR122/P and PR123/P electronic trip units. Onboard vessels, this module enables remote monitoring, supervision, and control of circuit breakers via a Modbus network, which is essential for efficient power management in marine electrical distribution systems. Reliable communication between switchgear and vessel automation or power management systems is critical for safe and efficient shipboard operations.
Key Features
✓ Modbus communication protocol for seamless integration with shipboard automation and SCADA systems
✓ Designed for ABB Emax E1–E6 air circuit breakers with PR122/P and PR123/P trip units
✓ Enables remote supervision, monitoring, and control of circuit breaker parameters
✓ Compact module format for straightforward installation within existing switchgear assemblies
✓ Supports centralised power management and diagnostics from the engine control room or bridge
Marine Applications
Main switchboard communication and remote circuit breaker monitoring on commercial vessels
Integration with vessel power management systems (PMS) for load sharing and blackout prevention
Engine room automation networks requiring real-time circuit breaker status and fault data
Shore-to-ship and port facility electrical distribution monitoring via Modbus networks
Retrofit and upgrade of existing ABB Emax breaker installations to enable remote communication capabilities
Why Marine Engineers Choose
Marine engineers rely on the ABB PR120/D-M for its proven compatibility with the widely installed Emax breaker series, enabling critical remote diagnostics, supervision, and control that reduce response times and support safe, uninterrupted power distribution across vessel electrical systems.
Ideal For
Bulk carriers, tankers, container ships, offshore platforms, cruise vessels, ferries, naval vessels, LNG/LPG carriers, and any marine or industrial installation utilising ABB Emax E1–E6 air circuit breakers with PR122/P or PR123/P trip units.
Technical Support & Compliance
We provide complete solutions including remote troubleshooting, onboard support, testing and commissioning, repair, retrofit and upgrade services, and full integration support for ABB Emax communication modules. To confirm compatibility with your specific installation, please share nameplate photos, part numbers, system drawings, switchgear model and firmware version, vessel name/IMO number, and project scope. All compatibility and technical details are subject to confirmation based on your vessel’s configuration.




