Products

The Electronic Molded Case Circuit Breaker MCCB from Dongfa Intelligent is designed for low-voltage distribution and motor protection applications. The GNM1E series covers frame currents from 125A to 800A and uses an electronic trip unit with an adjustable setting current range of 0.4–1.0In. Available in 3- or 4-pole configurations and L/M/H breaking capacity levels, the circuit breaker provides configurable long-time, short-time, and instantaneous overcurrent protection according to the selected application and technical requirements.

The Molded Case Circuit Breaker MCCB from Zhejiang Dongfa Intelligent Electric Technology Co., Ltd. is a low-voltage circuit protection device for power distribution, equipment, and motor circuits. It covers rated currents from 16A to 1250A, with 400V breaking capacities from 25kA to 100kA and 3P/4P configurations. The thermal-magnetic trip unit provides overload and short-circuit protection, while different frame sizes and breaking capacity levels allow selection according to load current and fault level. Standard orders can be supplied with a lead time of 7–15 working days, with custom configurations available upon request.

Dongfa Intelligent supplies the Universal Intelligent Air Circuit Breaker ACB with a 1600A frame rating for low-voltage distribution projects requiring configurable protection and operating functions. Its control system can be matched with different auxiliary power supplies, while the undervoltage release provides selectable delay settings of 1s, 3s, 5s, or instantaneous operation. Motor and manual operating options are also available for different installation and control requirements.

Dongfa Intelligent supplies global low voltage power distribution buyers with Intelligent Air Circuit Breaker ACB. This product covers frame sizes from 2000A to 6300A, with rated ultimate short-circuit breaking capacity up to 120kA (400V), equipped with intelligent controllers supporting selective protection, remote communication, and fault recording. Buyers seeking main incoming, bus-tie, or large-capacity feeder protection and control can request a quote for selection support.

Dongfa Intelligent 40.5kV Indoor Earthing Switch 31.5kA is designed for 40.5kV switchgear applications and supplied as a JN22-40.5/31.5 series configuration. As a China manufacturer, Dongfa Intelligent provides a rated short-time withstand current of 31.5kA/4s, an 80kA short-circuit making current, 95kV power-frequency withstand voltage, and 185kV lightning impulse withstand voltage. Three phase spacing options of 300mm, 350mm, and 400mm are available, with an insulating partition required for the 300mm configuration.

Dongfa Intelligent JN15-12 series 12kV Indoor Earthing Switch : 31.5kA/4s thermal stability, 80kA making current, four phase spacings (210–275mm), 2,000 operations mechanical life, dedicated production line with full inspection, MOQ 1 unit, and 7–15 working days lead time for standard products.