Description
HYUNDAI ELECTRIC
HGN12A3B
AIR CIRCUIT BREAKER
HGN12A3BM2C2S269JAFV2
IN MAX= 1000A
3 POLES
UIMP= 12KV UI=1000V 50/60HZ
ICS=ICU100% CAT.B
EN/IEC 60947-2, VDE0660, GOST R 50030.2-99 9/1-2000
TA CERTI.LR/ABS/DNV-GL/NK/RINA/KR/RMRS/BV
HGN12 / A FRAME
3 POLE (1250AF)
ICT=1000A
IN=1000A
MOTOR CHARGE: (220VAC/DC)
CLOSING VOLTAGE: (220VAC)
TRIP VOLTAGE: (220VAC)
FIXING BLOCK
UVT COIL & CONTROLLER (220VAC)
AUTO CON+ CRADLE H-TYPE
UVT TIME DELAY MODULE
RATED VOLTAGE: 220V
MADE IN KOREA
The Hyundai Electric HGN12A3B is a 3-pole air circuit breaker rated at 1000A, supplied complete with a UVT (Under Voltage Trip) time delay module. Designed for use in marine main and emergency switchboards, this air circuit breaker provides reliable overcurrent and short-circuit protection within shipboard power distribution systems. Its robust construction and multi-class type approval make it a dependable solution for protecting critical electrical circuits across a wide range of vessel types and operational environments.
Key Features
✓ Rated at 1000A (IN MAX) with a 1250AF frame, operating at up to UI=1000V 50/60Hz, with an impulse withstand voltage of UIMP=12kV and full breaking capacity at ICS=ICU 100%, Category B to EN/IEC 60947-2.
✓ Supplied with a UVT coil & controller and a UVT time delay module rated at 220VAC, providing controlled under-voltage tripping with an adjustable time delay to prevent nuisance trips during momentary voltage dips.
✓ Motor charge mechanism operating at 220VAC/DC with 220VAC closing and trip voltages, suitable for integration into remotely operated switchboard panels and automated power management systems.
✓ Type approved by LR, ABS, DNV-GL, NK, RINA, KR, RMRS, and BV, confirming suitability for marine-class installations across major flag states and classification society requirements.
✓ Supplied in H-Type cradle with auto-connection and fixing block for draw-out installation, facilitating straightforward removal and replacement within existing switchboard configurations without full system shutdown.
Marine Applications
✓ Main switchboard and emergency switchboard feeder protection on merchant vessels, tankers, bulk carriers, and offshore support vessels.
✓ Power distribution panels aboard passenger vessels, RoRo ferries, and cruise ships where reliable overcurrent protection is critical to safe operations.
✓ Automation and power management systems on LNG carriers, chemical tankers, and DP vessels requiring precise under-voltage trip functionality with time delay control.
✓ Generator incomer and bus-tie breaker positions in marine electrical distribution systems where draw-out, motor-operated circuit breakers are specified.
✓ Retrofit and replacement applications within existing Hyundai Electric switchgear panels installed across a broad fleet of vessels worldwide.
Why Marine Engineers Choose
The Hyundai Electric HGN12A3B is trusted for its multi-class type approval coverage, full breaking capacity rating, and the practical advantage of a draw-out cradle design that supports maintenance and replacement without extended system downtime — making it a reliable choice for critical marine power protection duties.
Ideal For
Merchant vessels, tankers, bulk carriers, offshore support vessels, passenger ferries, LNG carriers, DP vessels, and any commercial or industrial marine application requiring a certified 3-pole 1000A air circuit breaker with under-voltage trip and time delay functionality.
Technical Support
Technical support is available for the Hyundai Electric HGN12A3B air circuit breaker and its associated UVT time delay module, covering onboard installation guidance, commissioning assistance, and remote troubleshooting. Support extends to integration within existing marine switchboard configurations and power management systems.




