Low Voltage Vacuum Contactor | Efficient 400V-2kV Switching

This series of single-pole vacuum contactors reaches a high level of performance both domestically and internationally. These vacuum contactors are suitable for use in power network systems with alternating current (AC) at 50-60 Hz, with a main circuit voltage of 1.14-2 kV and a main circuit rated current ranging from 250 A to 800 A. They are designed for long-distance switching and breaking, as well as for frequent starting and controlling of AC motors, transformers, and capacitor banks. It is especially suitable for use as the main AC switch in locomotives, wind power, and high-power photovoltaic inverters. With neutral point grounding protection, it offers high cost-performance.

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Feature

The vacuum contactor features a fully enclosed structure, making it dust-resistant, aging-resistant, aesthetically pleasing, and maintenance-free.

It uses military-grade specialized vacuum ceramic bottles with high capacity and excellent heat dissipation.

The product offers superior switching performance with good breaking and making characteristics. It can handle frequent operations with a mechanical life exceeding 300,000 cycles.

It is suitable for use as the main AC switch in locomotives, wind power systems, and high-power photovoltaic inverters. Additionally, it can frequently switch capacitor banks and is used in short-circuit compensation for electric arc furnace systems, providing stable and reliable performance.

Parameter

The name of the parameter	Model	250、400/1.14~2	630/1.14~2	800/1.14~2
Rated voltage of the main circuit	(KV)	1140~2000	1140~2000	1140~2000
Rated current of the main circuit	(A)	250、400	630	800
Main loop closing capability	(A/100 times)	2500、4000	6300	8000
The main circuit is on/off	(A/10)	2000、3200	5000	6000
Ultimate breaking capacity	(A/3)	2500、4000	6300	8000
Electrical endurance AC3	(10,000 times)	20	20	20
Electric endurance AC3 (for locomotives)	(10,000 times)	30	30	30
Mechanical life	(10,000 times)	100	100	100
Rated operating frequency AC3	(Ops./h)	300	300	300
Construct Operation Quality AC3 (Locomotive Only)	(Ops./h)	120	120	120
Clearance between open contacts	(mm)	2.5±0.5	2.5±0.5	2.5±0.5
Overtravel	(mm)	1.5±0.5	1.5±0.5	1.5±0.5
Secondary control voltage	(V)	AC or DC:36/1101127/220/380or customized