Products

Dongfa Intelligent is a China manufacturer and supplier of DC 220V Latching Solenoid with Auxiliary Micro Switch for high voltage switchgear interlocking and circuit breaker cabinet anti-misoperation systems. The solenoid operates at DC220V and integrates an auxiliary micro switch for push rod position signal feedback. It features a galvanized metal housing, chrome-plated metal push rod, spring self-reset structure, and blue multi-strand copper lead wires.This latching solenoid is suitable for switchgear applications where both mechanical interlocking and position feedback are required. Contact type, mounting dimensions, push rod stroke, and other configuration details should be confirmed before ordering.

Dongfa Intelligent, a manufacturer of switchgear components, supplies the AC/DC 110V Position Latching Solenoid for Switchgear for PT handcart position interlocking and circuit breaker cabinet anti-misoperation applications. The solenoid supports AC110V/DC110V operation and features an integrated arc suppression element, spring self-reset structure, chrome-plated push rod, and adjustable mounting bracket for switchgear control mechanisms.

Dongfa Intelligent, a China manufacturer, provides the AC/DC 110V Latching Solenoid for Switchgear for high-voltage switchgear interlocking systems. It supports AC110V and DC110V control circuits and is designed for PT handcart interlocking, circuit breaker cabinet anti-misoperation interlocking, and five-prevention applications. Replacement matching is available based on voltage, mounting dimensions, push rod stroke, and installation requirements.

Dongfa Intelligent manufactures the 40.5kV Solid-Insulated Vacuum Circuit Breaker for C-GIS and compact switchgear applications. The series covers 12kV, 24kV, and 40.5kV voltage classes, with rated current from 630A to 2500A and rated short-circuit breaking current from 20kA to 40kA. It uses a solid-insulated pole and vacuum interrupter, with a three-position mechanism integrating circuit breaking, isolation, and earthing functions. Selection should be based on system voltage, rated current, short-circuit breaking capacity, operating mechanism voltage, mounting dimensions, and interlocking requirements.

Dongfa Intelligent supplies the 40.5kV Wind and Solar Vacuum Circuit Breaker for wind power, solar power, and other new energy switching applications. The product uses a vacuum interrupter and offers rated current of 630–1250A, rated short-circuit breaking current of 20–31.5kA, and a circuit breaker interrupter mechanical life of 10,000 operations. It features an opening time of 20–50ms, closing time of 30–70ms, and a spring operating mechanism supporting AC/DC 220V and 110V. Configuration can be confirmed according to system voltage, current, short-circuit level, control voltage, and switchgear installation requirements.

Dongfa Intelligent is a 40.5kV Wind and Solar Vacuum Load Switch-Fuse Combination Unit manufacturer supplying medium-voltage switchgear for wind power, solar power, energy storage, and new energy step-up stations. The product combines a load break switch, fuse protection, and vacuum circuit breaker, supporting 630–1250A rated current, 31.5kA short-circuit breaking, and up to 80kA short-circuit making capacity for 40.5kV applications.