Description
MITSUBISHI ELECTRIC CORPORATION
MODEL: AE2000-SS
LOW VOLTAGE AIR CIRCUIT BREAKER
INSULATION VOLT.: 1000VAC
OPERATIONAL VOLT.: 690VAC
FRAME SIZE: 2000 A
POLE: 3
RATED FREQUENCY: 50/60HZ
AMBIENT TEMP.: 45C
SHORT TIME: 1 SEC. 50KA
WITHSTAND CURRENT: 3 SEC. KA
MADE IN JAPAN
The Mitsubishi Electric AE2000-SS is a heavy-duty low voltage air circuit breaker rated at 2000A, designed to provide reliable overcurrent and short-circuit protection within marine electrical distribution systems. Operating at up to 690VAC with an insulation voltage of 1000VAC, this 3-pole breaker is engineered to handle the demanding electrical environments found aboard commercial and industrial vessels. As a critical component within the Air Circuit Breaker category, it plays a fundamental role in safeguarding main switchboards, distribution panels, and essential onboard power circuits from potentially damaging fault conditions.
Key Features
✓ Rated at 2000A frame size with an operational voltage of 690VAC and insulation voltage of 1000VAC, providing robust protection for high-current marine distribution circuits.
✓ Short-time withstand rating of 50kA for 1 second, offering proven fault current tolerance suited to the high fault levels present in marine main switchboard environments.
✓ Compatible with 3-pole low voltage switchgear panels and main distribution boards operating on 50Hz or 60Hz systems, accommodating both single and dual-frequency vessel electrical networks.
✓ Rated for ambient temperatures up to 45°C, making it suitable for installation in engine room switchboards and electrical panels subject to elevated thermal conditions typical of marine machinery spaces.
✓ Manufactured in Japan by Mitsubishi Electric Corporation, this breaker reflects the quality standards expected for critical protection equipment used in marine power distribution applications.
Marine Applications
✓ Main switchboard and bus-tie protection aboard merchant vessels, tankers, and bulk carriers where high-capacity circuit breaking is essential for safe power management.
✓ Feeder and incomer protection within engine room distribution panels on offshore support vessels, platform supply vessels, and drill ships operating demanding electrical loads.
✓ Generator circuit protection in vessel power generation systems where fault isolation speed and withstand capability are critical to maintaining onboard power continuity.
✓ Shore power connection panels and distribution systems aboard passenger ferries, RoRo vessels, and cruise ships requiring reliable high-current switching and protection.
✓ Industrial marine applications including dredgers, cable-laying vessels, and heavy-lift crane vessels where large motor loads and variable power demands place high stress on distribution protection equipment.
Why Marine Engineers Choose
The Mitsubishi Electric AE2000-SS is a trusted choice among marine electrical engineers for its proven performance in high-current protection applications, its tolerance of elevated ambient temperatures, and the reliability associated with Mitsubishi Electric’s Japanese manufacturing standards — qualities that matter when protecting critical shipboard electrical infrastructure.
Ideal For
Merchant vessels, bulk carriers, tankers, offshore support vessels, passenger ferries, RoRo ships, cruise vessels, dredgers, and other commercial or industrial marine platforms requiring dependable low voltage air circuit breaker protection at the 2000A level.
Technical Support
Technical support is available for the Mitsubishi Electric AE2000-SS air circuit breaker, covering onboard installation guidance, panel integration, and remote troubleshooting assistance. Support extends to maintenance queries and fault diagnosis to help keep your vessel’s electrical distribution system operating safely and efficiently.
