YUANKY QF(26)H Series Black AC Miniature Circuit Breaker (MCB) is a high-performance circuit protection device fully compliant with IEC 60947-2 standards, engineered with advanced hydraulic-magnetic tripping technology for reliable overload and short-circuit protection in AC power systems. Covering rated currents from 5A to 100A with C-curve tripping characteristics, it supports 1-pole, 2-pole and 3-pole configurations, rated for 240V/415V AC at 50/60Hz and delivering a 6kA short-circuit breaking capacity. Its compact black housing and robust construction make it suitable for both residential and industrial electrical installations.

This MCB stands out with its core hydraulic-magnetic operating technology, which ensures 100% rated capacity and precision tripping characteristics unaffected by ambient temperature fluctuations. Unlike thermal-type MCBs, it can be reset immediately after tripping without cooling downtime, improving operational efficiency. It features dual mounting compatibility, supporting both standard DIN rail and mini rail installation to fit various distribution cabinet dimensions. The sleek black enclosure provides excellent electrical insulation and mechanical durability, while its compact modular design optimizes cabinet space utilization. With a full range of amperage ratings and pole configurations, it offers flexible options to match diverse circuit protection requirements.

The QF(26)H black MCB covers a wide spectrum of application scenarios. In residential buildings, it protects lighting circuits, wall socket branches and household appliance feeders in distribution boards. In industrial environments, it serves as branch protection for machinery control panels, production line equipment and workshop power distribution systems. It is also widely deployed in telecom and datacom facilities to safeguard servers, network equipment and UPS systems, as well as in mobile power generation units and temporary construction power boxes. For railway signalling systems, it delivers stable power protection for signal control circuits. Additionally, it is an ideal OEM component for lighting control systems, electrical enclosures and industrial automation equipment.

With reliable hydraulic-magnetic performance, flexible mounting options and comprehensive specification coverage, YUANKY black AC MCB provides a cost-effective and dependable circuit protection solution for global electrical contractors, equipment manufacturers and power distribution projects.