Description
ABB
SACE F1
AIR CIRCUIT BREAKER
F1S
IN = 1250 A / UE = 690 V
ICW = 50KA X1S
ICS=100% ICU
NR.: MD026059
NR.: MD0254309
10A 380V~
SACE PR1/P
PROTECTION UNIT
LTH.: 1250A
NR.: D0831 G
The ABB SACE F1 (F1S) is a high-performance air circuit breaker rated at 1250A and 690V, paired with the SACE PR1/P electronic protection unit for advanced overcurrent and fault protection. Designed for demanding power distribution environments, this unit plays a critical role in main and sub-main switchboards aboard commercial and industrial vessels. Its ability to handle high short-circuit currents — with an ICW of 50kA and ICS equal to 100% of ICU — makes it a robust choice for protecting essential electrical circuits in marine power systems where reliability and fault tolerance are non-negotiable.
Key Features
✓ Rated at IN = 1250A and UE = 690V with ICW = 50kA (X1S) and ICS = 100% ICU, providing high short-circuit withstand and breaking capability as specified in the original data.
✓ Supplied with the SACE PR1/P electronic protection unit (LTH: 1250A), which delivers configurable long-time, short-time, and instantaneous protection functions for precise circuit management.
✓ Compatible with ABB SACE F1-series switchgear assemblies and main distribution switchboards; system compatibility with specific panels should be confirmed against vessel electrical drawings.
✓ Suitable for installation in enclosed main switchboard compartments and distribution panels; mounting configuration and environmental suitability subject to onboard installation review.
✓ Replacement of the complete breaker and protection unit assembly ensures consistent protection coordination; the PR1/P unit settings should be verified and recommissioned following installation.
Marine Applications
✓ Main switchboard and bus-tie protection on merchant vessels, offshore support vessels, and platform supply vessels operating medium-voltage distribution systems.
✓ Sub-main feeder protection for essential services including propulsion auxiliaries, cargo handling equipment, and HVAC systems aboard large commercial ships.
✓ Power management and load distribution panels on RoPax ferries, tankers, and bulk carriers requiring high-current circuit protection with electronic trip coordination.
✓ Emergency and standby power circuits where reliable fault isolation is critical to maintaining vessel safety and continuity of essential systems.
✓ Refit and upgrade projects where aging or obsolete breakers in existing ABB SACE switchgear assemblies require like-for-like replacement to restore full protection capability.
Why Marine Engineers Choose
The ABB SACE F1 with PR1/P protection unit is a well-established combination in marine power distribution, trusted for its high breaking capacity, configurable electronic protection, and compatibility with ABB’s broader SACE switchgear ecosystem — making it a dependable choice for both original installations and maintenance replacements.
Ideal For
Merchant vessels, tankers, bulk carriers, RoPax ferries, offshore support vessels, platform supply vessels, and any commercial marine application requiring robust high-current air circuit breaker protection within main or sub-main switchboard assemblies.
Technical Support
Technical support is available for this ABB SACE F1 air circuit breaker and PR1/P protection unit, covering onboard installation guidance, protection setting verification, and remote troubleshooting assistance. Enquiries relating to system integration or commissioning support are welcomed.
