Description
TERASAKI ELECTRIC CO., LTD.
TEMPOWER 2
AR216H
3-POLE AIR CIRCUIT BREAKER
1H2545SAB
POLES: 3
FREQ.: 50/60HZ
UI: 1000V
UIMP: 12KV
MAX.: 1600A
CAT. B
AMB. TEMP.: 45°C
ANN1 ANN2: 40°C
TYPE: AGR-21BL-PS
OVER-CURRENT RELEASE
MADE IN JAPAN
The Terasaki Tempower 2 AR216H is a 3-pole air circuit breaker rated at 1600A, designed to provide reliable overcurrent protection and circuit isolation in demanding marine electrical distribution systems. As a core component within shipboard main switchboards, distribution panels, and power management systems, this air circuit breaker plays a critical role in protecting electrical circuits from overload and fault conditions, safeguarding both equipment and vessel operations.
Key Features
✓ Rated at 1600A maximum with a UI of 1000V and an impulse withstand voltage (UIMP) of 12kV, offering robust protection for high-capacity marine circuits.
✓ Fitted with an AGR-21BL-PS over-current release unit, providing adjustable overcurrent protection suited to the load profiles typical in marine power distribution.
✓ Rated for operation at ambient temperatures up to 45°C (with annex conditions at 40°C), making it suitable for engine room and machinery space electrical enclosures.
✓ 3-pole configuration operating across 50/60Hz frequencies, compatible with a wide range of international shipboard power systems and switchboard arrangements.
✓ Manufactured in Japan by Terasaki Electric Co., Ltd., a well-established supplier of marine-grade electrical protection equipment, ensuring build quality consistent with demanding offshore and commercial maritime standards.
Marine Applications
✓ Main switchboard and distribution panel protection aboard commercial cargo vessels, tankers, and bulk carriers requiring high-capacity circuit breakers.
✓ Feeder circuit protection for large auxiliary machinery including pumps, compressors, and HVAC systems in engine room electrical systems.
✓ Power distribution and fault isolation in offshore platforms, drill ships, and support vessels where reliable electrical protection is operationally critical.
✓ Passenger vessel and ferry electrical systems where Category B protection devices are required within primary distribution switchgear.
✓ Replacement or retrofit applications within existing Terasaki Tempower switchboard installations during scheduled dry-dock maintenance or emergency spares requirements.
Why Marine Engineers Choose
Marine engineers specify the Terasaki Tempower 2 AR216H for its proven performance in high-load marine environments, its compatibility with established Terasaki switchboard systems, and the confidence that comes with Japanese-manufactured electrical protection equipment rated to the demands of commercial shipping operations.
Ideal For
Cargo vessels, tankers, bulk carriers, container ships, passenger ferries, offshore support vessels, drill ships, and any commercial or industrial marine application requiring a high-capacity 3-pole air circuit breaker within a main or secondary distribution switchboard.
Technical Support
Technical support is available for this air circuit breaker and related Terasaki Tempower switchboard systems, covering onboard installation guidance, fault diagnosis, and remote troubleshooting assistance. Contact our team directly to discuss your specific requirements.
