BQC53 series

explosion-proof electromagnetic starter

1. It is widely used in flammable and explosive gas environment such as oil exploitation, refining, chemical industry, offshore oil platform, oil tanker, etc. It is also used in flammable dust places such as military industry, port, grain storage and metal processing;

2. Applicable to Zone 1 and Zone 2 of explosive gas environment;

3. Applicable to IIA, IIB, IIC explosive gas environment;

4. Applicable to areas 21 and 22 of flammable dust environment;

5. Applicable to the temperature group is T1 ~ T4 / T5 / T6;

6. It can be used for remote start or direct control of start, stop and forward and reverse of three-phase squirrel cage motor, and can protect motor overload, under voltage, short circuit and phase failure. There should also be pre-level power distribution and protection during installation.

Model Implication

Features

1. The outer casing is cast aluminum alloy ZL102. Adopting one-time die-casting process, the surface is smooth, the appearance is beautiful, the internal structure is high in density, and the impact resistance is strong. The outer casing has good explosion-proof performance, and the product has a permanent “Ex” explosion-proof mark.

2. After the surface of the product is deburred by industrial robots and high-speed shot blasting, the advanced automatic high-pressure electrostatic spray and heat-curing line technology is adopted. The plastic layer formed on the surface of the shell has strong adhesion and good anti-corrosion ability.

3. The component cavity adopts an explosion-proof structure, and the inlet and outlet chambers adopt an increased safety structure. The modular combination between each cavity is small, neat and beautiful, and takes up less space on the installation site; it is convenient to install and maintain.

4. The explosion-proof chamber is equipped with AC contactor, thermal relay and other components, and the built-in terminal block, explosion-proof start-stop button and other components.

5. The sealing strip adopts two-component polyurethane primary casting foaming process with high protection performance.

6. All exposed fasteners are made of stainless steel.

7. The inlet and outlet ports are usually made of pipe threads, and the cable clamping and sealing device is arranged. It can also be made into metric thread, NPT thread, etc. according to the requirements of the user site.

8. Steel pipes and cable wiring are available.

Main Technical Parameters

Order Note

1. Please indicate the details of product model, size and quantity according to model implication;

2. Please indicate Ex-mark;

3. Indicate thermal relay trip setting current, otherwise it should be set value 3/4 of thermal relay’s scope;