Description
MITSUBISHI ELECTRIC CORPORATION
JRCS
MODEL: AE1600-SS
LOW VOLTAGE AIR CIRCUIT BREAKER
INSULATION VOLT.: 1000VAC
OPERATIONAL VOLT.: 690VAC
FRAME SIZE: 1600A
POLE: 3
RATED FREQUENCY: 50/60HZ
AMBIENT TEMP: 45℃
SHORT TIME: 1SEC. 25KA
WITHSTAND CURRENT: 3SEC.
MADE IN JAPAN
The Mitsubishi Electric JRCS AE1600-SS is a low voltage air circuit breaker rated at 1600A, designed to provide overcurrent and short-circuit protection within marine main switchboards and distribution panels. Operating at up to 690VAC with an insulation voltage of 1000VAC, this 3-pole device is built to handle the demanding power distribution requirements found aboard commercial and industrial vessels. As a core component of the ship’s electrical protection system, it plays a critical role in safeguarding generators, bus bars, and feeder circuits from fault conditions that could compromise vessel operations.
Key Features
✓ Rated at 1600A frame size with a 690VAC operational voltage and 1000VAC insulation voltage, providing robust protection for high-current marine power circuits.
✓ Short-time withstand current rated at 25kA for 1 second, with a 3-second withstand current capability, ensuring reliable fault tolerance under transient overload conditions.
✓ 3-pole configuration compatible with three-phase low voltage switchboard panels typical of marine main and emergency distribution systems; frequency rated for both 50Hz and 60Hz networks.
✓ Rated for ambient temperatures up to 45℃, making it suitable for installation in engine room switchboards and other thermally demanding onboard environments.
✓ Manufactured in Japan by Mitsubishi Electric, a recognised supplier to JRCS marine electrical systems, supporting direct replacement and system compatibility in existing JRCS-equipped installations.
Marine Applications
✓ Main switchboard protection on merchant vessels, tankers, and bulk carriers where high-capacity feeder circuit breakers are required for generator and bus tie applications.
✓ Power distribution panels aboard offshore support vessels, platform supply vessels, and drill ships operating high-load electrical systems.
✓ Emergency switchboard and section board installations where reliable overcurrent protection is essential to maintain vessel safety systems.
✓ Feeder protection for large motor starters, bow thrusters, and cargo handling equipment connected to 690VAC distribution systems.
✓ Retrofit and direct replacement applications in JRCS marine electrical control systems where the original AE1600-SS unit requires like-for-like substitution.
Why Marine Engineers Choose
The Mitsubishi Electric AE1600-SS is trusted in marine electrical systems for its high interrupting capacity, stable performance at elevated ambient temperatures, and proven compatibility with JRCS switchboard configurations — reducing downtime risk during critical replacement operations.
Ideal For
Merchant vessels, tankers, bulk carriers, offshore support vessels, platform supply vessels, RoPax ferries, and any commercial vessel operating JRCS or Mitsubishi Electric low voltage switchboard systems requiring 1600A-rated circuit protection.
Technical Support
Technical support is available for the AE1600-SS air circuit breaker, covering onboard installation guidance, fault diagnosis, and remote troubleshooting assistance. Support extends to integration within existing JRCS marine switchboard systems and general repair queries.
