1.14kV LV Vacuum Contactor/Switch for Mining and Petrol Field, VACJP-125,250,400,630A/1.14kV

1. General description
   VACJP-125,250,400,630 type low voltage AC vacuum contactor is suitable for power system with AC 50Hz, rated working voltage of main circuit 660~1140v, rated current 125~630A, for making and breaking line and frequently starting and control AC motor, also for a variety of protective devices consisting of magnetic starter, especially for consisting anti-explosion magnetic starter.

2. Operating principles
   After control supply being power on, armature of electromagnet drives square shaft to rotate plastic arm. At this time, moving contact of vacuum interrupter moves under the effect of vacuum sub-pressure to contact with fixed contact, to make main circuit power on. When power off, the electromagnet loses the excitation, under the effect of inverse force spring the armature drives plastic arm to pull dynamic conductive lever of vacuum interrupter to release conductive contact, the main circuit is power off.
   The control power supply is 220V and bridge type rectifying (principle diagram is seen in Fig.2). Armature moves to break NC auxiliary contact K, the circuit is in series with diode V1 and resistance R, the electromagnet changes from moving to keeping

The Technical Specifications of this LV Vacuum Contactor define its electrical and mechanical parameters for low-voltage mining and petrol field applications. The VACJP-1.14kV Contactor is suitable for power systems with AC 50Hz, rated working voltage of main circuit 660~1140V, and rated current from 125A to 630A, designed for making and breaking lines, frequently starting and controlling AC motors. This Mining Vacuum Contactor can be combined with various protective devices to form magnetic starters, and is especially suitable for forming anti-explosion magnetic starters in hazardous environments. The LV Vacuum Contactor operates with a control supply that energizes the electromagnet armature, driving the square shaft to rotate the plastic arm, causing the moving contact of the vacuum interrupter to contact the fixed contact under vacuum sub-pressure. This VACJP-1.14kV Contactor features a bridge-type rectifying control power supply of 220V, with the armature moving to break the NC auxiliary contact. The Mining Vacuum Contactor offers a mechanical life of up to 100,000 operations and is ideal for demanding industrial environments. Each LV Vacuum Contactor undergoes comprehensive testing to ensure reliable performance. Proper installation of this VACJP-1.14kV Contactor ensures safe operation in anti-explosion applications.

VACJP-125A/1.14kV (single-pole）

VACJP-250A/1.14kV (single-pole)

VACJP-630A/1.14kV (single pole)