High voltage strong magnetic blow DC contactorDetailed product description：

Product Application
The GZJ-250A/10B high-voltage strong magnetic blow DC contactor series products are currently the only DC electrical products produced by Lutong Company in the domestic DC electrical industry with international advanced level characteristics such as high voltage, high current, small size, light weight, and strong arc breaking ability. It is mainly used for high-voltage and high current power switching and uninterruptible power supply systems in various fields such as traction locomotives, railway locomotives, mining machinery, petrochemicals, metallurgical ships, telecommunications, computers, etc. This product complies with standards such as IEC77 "Rules for Electric Traction Equipment" and TB1333-1996 "Basic Technical Conditions for Locomotive Electrical Appliances".

Product Features
Maximum breaking capacity of the main contact: 4 times the rated load current (5ms duration) for one breaking, and the rated load current value is determined based on the voltage value in the performance parameter table.
Voltage fluctuation range: 80%~120% (communication contactors) 70%~110% (vehicle contactors)
Main contact voltage drop: not more than 60mV under 100A load (for communication), not more than 80mV (for vehicle)
Electrical strength: AC 50HZ/2KV
Coil working range: continuous and intermittent working system (user selectable)
Environmental temperature: -25~45 ℃
Installation direction: The inclination of the relative vertical installation position should not exceed 10 º
It should be installed in a waterproof and dustproof box.
Note: Products with special parameters will be negotiated separately by the customer.  

Performance parameters of GZJ-250A/10B high-voltage strong magnetic blow DC contactor

Parameter Name	Product model
	GZJ-250A/10B
Number and type of contacts	1NO
Main contact current (A)	250A
Contact rated voltage V (DC)	630V
Rated voltage of coil V (DC)	twenty-four	forty-eight	seventy-two	one hundred and ten	two hundred and twenty	two hundred and eighty
Rated insulation voltage V (AC)	1600V
Rated impulse voltage V (AC)	6000V
Number and type of auxiliary contacts	2×NO 2×NC

Overall dimensions

GZJ-250A/10B high-voltage strong magnetic blow DC contactor