ABS Explosion Proof Transfer Switch , Corrosion Prevention Position Switch

ABS explosion proof transfer switch , corrosion prevention position switch

Description:

The changeover switch can be used as a circuit control switch, a test equipment switch, a motor control switch and a master control switch, and a transfer switch for an electric welder. The transfer switch is generally applied to AC 50HZ, voltage to 380V and below, DC voltage 220V and below to convert electrical control lines and electrical measuring instruments. For example, the commonly used LW5/YH2/2 type transfer switch is often used to convert and measure three-phase voltage.
The combination switch is suitable for AC 50HZ, voltage to 380V and below, DC voltage of 220V and below, for manual infrequently turning on or off the circuit, changing the power supply or load, the current can be carried larger.

the contact system of the changeover switch is composed of a plurality of movable contacts mounted in the insulating housing and movable contacts in the movable bracket. The moving contact is a double-breakpoint docking type contact bridge. On the rotating shaft with the handle, the circuit is turned on or off as the rotating shaft is rotated to different positions. The positioning mechanism adopts a ratchet card ratchet structure and is configured with different limit members to obtain switches of different gear positions. The changeover switch is assembled by multiple layers of insulating shells, which can be arranged in a three-dimensional manner, which reduces the installation area, is simple and compact, and is safe and reliable in operation.
The change-over switch can make different connection switches according to the requirements of the line to meet the requirements of different circuits. In control and measurement systems, conversion switches are used to convert the circuit. For example, the switching of the power supply of the electrical equipment, the forward and reverse switching of the motor, the voltage in the measuring circuit, the commutation of the current, and the like. The use of a transfer switch instead of a knife switch not only simplifies the control loop or the measurement loop, but also avoids operational errors and reduces the number of components used.

The changeover switch is a kind of development of the knife switch. The difference is that the upper and lower planes move when the knife switch is operated, and the changeover switch is the left and right rotation plane action, and can be made into a multi-contact, multi-position switch.

Application:

Designed for Explosive atmosphere Zone land Zone 2

Designed for Groups IIA, IIB, IIC

Designed for Combustible dust Zone20, Zone 21, Zone22

Designed for Temperature classesT6

Apply to oil drilling platforms, offshore oil platform, oil derrick, etc for the dangerous sites

Vican Explosion Proof Technology Co.,ltd, is an explosion-proof electrical high-tech enterprise, strong technical force, advanced technology, and sound quality assurance system, has passed ISO9001， international quality system certification, products designed and manufactured according to national standards GB3836-2000 and IEC standards, and obtained the explosion-proof certificate and production license issued by the national explosion-proof industry quality supervision department.

The main products are: explosion-proof panel, explosion-proof junction box, explosion-proof control station, explosion-proof swith, explosion-proof lighting, explosion-proof enclosure, explosion-proof fan, explosion-proof flexible conduit, explosion-proof plugs and receptacles, explosion-proof connectors etc. more than a dozen series of more than 300 varieties. Widely used in domestic and foreign oil fields, petrochemical, chemical, pharmaceutical, military and other fields as well as international key projects. The products are characterized by exquisite design, beautiful appearance, complete functions and convenient maintenance. They are well received by users. The company has established long-term and stable cooperation with many oilfields, refineries and general equipment manufacturers.

"Quality is our culture, Best service is credit, New products promote development, Good management attain profit" is the persistent tenet of Vican Explosion Proof Technology Co.,ltd,. Our products can give you the most reliable solution, caring for the quality feedback from user, continue serving for petroleum, petrochemical, chemical industry, oil refining, coal and gas industrial projects

Our rules: reasonable price, reliable quality, advanced performance, punctual delivery, Compliance with contract execution the products have three guarantees, consequently are your best choice

We welcome new and old clients to cooperate and build a good future