Dongfa Intelligent DC 220V 47 Ohm Closing and Tripping Coil is designed for high voltage vacuum circuit breaker operating mechanisms requiring higher initial electromagnetic force. Operating at DC220V with 47Ω resistance, approximately 4.68A current and approximately 1030W short-time power output, the coil provides strong thrust for long stroke switching actions. It features a long stroke brass push rod with locking adjustment nut, external reset spring and lead wire connection for flexible mechanism matching and reliable operation.
Long stroke operating mechanisms require higher electromagnetic force during the initial movement stage to overcome spring resistance, friction and mechanical inertia. The 47Ω coil increases current output under DC220V operation, providing stronger initial thrust for reliable closing and opening actions.
Key electrical values:
The coil is equipped with an extended brass push rod and locking adjustment nut. The adjustable structure helps match different operating mechanisms by fine tuning push rod extension and initial position. The rear external reset spring allows easier inspection and replacement during maintenance.
The lead wire type design uses black multi-strand copper wires for flexible cabinet wiring. The galvanized housing provides mechanical protection, while the top 5 threaded mounting holes allow different fixing positions according to the circuit breaker mechanism structure.
| Parameter | Specification |
| Product Name | DC 220V 47 Ohm Closing and Tripping Coil |
| Voltage | DC220V |
| Resistance | 47Ω ±5% |
| Current | Approx. 4.68A |
| Power | Approx. 1030W short time duty |
| Push Rod | Long stroke brass push rod with locking nut |
| Reset | External spring self-reset |
| Mounting | 5 threaded mounting holes |
For replacement projects involving DC 220V 47 Ohm Closing and Tripping Coil, please provide the original coil model and operating mechanism information. Dongfa Intelligent technical team can help confirm whether the coil matches the required stroke, mounting structure and control circuit capacity.
Dongfa Intelligent controls the production process of low resistance coils through winding accuracy, resistance inspection and insulation testing. Each coil is tested before shipment to verify electrical parameters and mechanical operation performance.
Dongfa Intelligent is a high voltage electrical manufacturer based in Yueqing, Zhejiang, China. The company provides circuit breaker accessories and customized coil solutions for switchgear manufacturers with factory production capability and technical support.
The coil operates at DC220V with 47Ω resistance. The steady-state current is approximately 4.68A and instantaneous power is approximately 1030W under short time duty.
It is suitable for high voltage vacuum circuit breaker operating mechanisms requiring higher initial electromagnetic force, especially long stroke or higher resistance switching mechanisms.
Replacement depends on the original mechanism design, control power capacity, auxiliary contact performance and installation dimensions. Technical confirmation is recommended before replacement.
The low resistance design produces higher current and power output. Continuous energization may cause overheating, so the control circuit must disconnect power after operation.
Please provide original coil model, operating voltage, resistance, push rod stroke, mounting dimensions and quantity. Dongfa Intelligent technical team will help confirm matching requirements before production.
Address
No. 281, Wei 18th Road, Yueqing Economic Development Zone, Yueqing, Wenzhou, Zhejiang, China
Tel
