Products

Dongfa Intelligent supplies the HD11FA series Anti-Misoperation Knife Switch for low-voltage power distribution and isolation applications. The series covers rated operating current configurations of 200A, 400A, 600/630A, 1000A and 1500/1600A. It has a rated insulation voltage of 660V, rated working voltage of AC380V/DC220V, rated frequency of 50Hz and utilization category AC-20. The series is available in HD11FA/38 front-board and HD11FA/39 back-board mounting types.

The HR17B Series Fuse Switch Disconnector from Dongfa Intelligent is designed for manual isolation, normal-current switching, and fuse-based short-circuit protection in low-voltage AC distribution systems. The series covers rated operating currents from 40A to 630A, supports 2P and 3P configurations, and is compatible with RT14 and NT fuse links. With a rated operating voltage of 400V, rated insulation voltage of 690V, and a rated limited short-circuit current of up to 50kA when coordinated with the specified fuse link, it is suitable for distribution cabinets, motor circuits, and industrial control applications.

Dongfa Intelligent, a low voltage switchgear manufacturer, supplies the Protected Open-Type Knife Switch HD11F/HS11F Series for manual isolation and power transfer in low voltage distribution cabinets, industrial control cabinets, and PV combiner boxes. The open-type structure provides exposed contacts and a clearly visible break after opening. The series covers 100A, 200A, 400A, 600A, and 1000A ratings, with 2P, 3P, and 4P configurations, rated-current making and breaking at AC380V and DC220V, and defined short-time withstand and dynamic stability current levels.

As a China manufacturer, Dongfa Intelligent provides the Molded Case Circuit Breaker with Residual Current Protection for low-voltage distribution systems, including main incoming circuits and high-capacity branch circuits. The GNM1L Series is available in 125A, 250A, 400A, 600A, and 800A frame sizes, with AC400V rated operating voltage, residual operating current settings from 30mA to 1000mA, and time-delay or non-delay protection. With an Icu of up to 65kA at 400V, the series offers configurations for different rated current, leakage current, short-circuit current, and protection coordination requirements.

Dongfa Intelligent COAFLE-32 Residual Current Operated Circuit Breaker is designed for low-voltage terminal distribution systems requiring integrated residual current, overload, and short-circuit protection. The series covers rated currents from 6A to 63A, with 30mA/50mA residual operating current, 4500A/6000A rated short-circuit capacity, and 1P+N, 2P, 3P, 3P+N, and 4P configurations for different single-phase and three-phase distribution systems.

Dongfa Intelligent supplies DZ47LE Series Residual Current Protection RCBO for terminal distribution systems requiring combined circuit protection. The series covers 6A–63A rated current and supports multiple pole configurations, 30mA/50mA residual operating current, and C/D trip characteristics. It is suitable for lighting, socket circuits, commercial distribution, industrial control cabinets, and other terminal circuits requiring residual current, overload, and short-circuit protection.