Description
MITSUBISHI ELECTRIC CORP.
Y-5
5A ADAPTER FOR AIR CIRCUIT BREAKER
ACCESSORY FOR AE-SS
LN319N766H01
INPUT CURRENT: 5AAC
OUTPUT:- VOLTAGE SIGNAL: 50HZ 141MVAC / 60HZ 170MVAC
TEST POWER: 30VDC
POWER CURR.: 0.4AAC
JAPAN
The Mitsubishi Electric Y-5 is a 5A current adapter designed as an accessory for the AE-SS series air circuit breaker. Its primary function is to convert an AC input current signal into a proportional voltage output, enabling accurate current monitoring within electrical distribution and protection systems. As part of the Air Circuit Breaker category, this adapter plays a supporting but operationally critical role in ensuring that breaker performance can be measured, tested, and verified within shipboard power management and distribution panels.
Key Features
✓ Converts 5A AC input current to a voltage signal output: 141mVAC at 50Hz and 170mVAC at 60Hz, supporting both common marine electrical supply frequencies.
✓ Compatible with the Mitsubishi AE-SS series air circuit breakers, referenced by part number LN319N766H01, ensuring a precise accessory match for this breaker family.
✓ Test power input of 30VDC with a power current draw of 0.4AAC, providing a low-burden measurement interface suitable for instrumentation and monitoring circuits.
✓ Manufactured in Japan by Mitsubishi Electric Corp., a recognised name in industrial and marine electrical equipment, reflecting consistent build quality typical of the product line.
✓ Replacement and installation context should be confirmed against the specific AE-SS breaker configuration onboard; compatibility with associated panels or monitoring systems is subject to vessel-specific setup confirmation.
Marine Applications
✓ Shipboard main and emergency switchboards where AE-SS series air circuit breakers are installed for power distribution and protection.
✓ Engine room electrical panels on commercial vessels requiring accurate current signal monitoring for breaker performance verification.
✓ Cargo and tanker vessels with integrated power management systems that rely on breaker accessories for load monitoring and fault detection.
✓ Offshore platforms and support vessels utilising Mitsubishi AE-SS breakers within high-reliability electrical distribution arrangements.
✓ Passenger and ro-ro ferries where continuous monitoring of circuit breaker status and current levels is part of routine electrical system oversight.
Why Marine Engineers Choose
Marine engineers select the Mitsubishi Y-5 adapter because it provides a purpose-built, manufacturer-matched interface for AE-SS series breakers, ensuring that current monitoring is accurate and consistent with the original equipment specification — reducing the risk of signal errors or incompatibility in critical distribution circuits.
Ideal For
Commercial cargo vessels, tankers, offshore support vessels, passenger ferries, and any vessel class operating Mitsubishi AE-SS series air circuit breakers within their main or auxiliary electrical distribution systems.
Technical Support
Technical support is available for this adapter and its associated air circuit breaker system. Assistance covers onboard installation guidance, functional testing, and remote troubleshooting to help ensure correct integration within your vessel’s electrical distribution setup.
