explosion-proof circuit breaker

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. as a function of turning the circuit on and off infrequently, and controlling the electricity the road is protected by overload, short circuit, etc.

model implication



1. the product is a flameproof and increased safety composite structure. the component cavity adopts an explosion-proof structure, and the inlet and outlet chambers adopt an increased safety explosion-proof structure. the modular combination between each cavity is small, tidy and beautiful, occupying less space on the installation site, and convenient for installation and maintenance.

2. the shell material is cast aluminum alloy zl102. it adopts one-time die-casting process, the surface is smooth, the appearance is beautiful, the internal structure is high density, the impact resistance is strong, the product shell has good explosion-proof performance, and the product has permanent permanent “ex” explosion-proof. sign.

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

4. the product is equipped with high-breaking miniature circuit breaker (≤100a) or low-voltage molded case circuit breaker (100a~250a), which has overload and short-circuit protection functions. it can also be equipped with leakage protection device according to user requirements.

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. cable in and out of the line, according to user requirements can be made up and down, down and down, up and down, down and up and other forms.

8. the inlet and outlet ports usually adopt pipe threads and are equipped with cable clamping and sealing devices. they can also be made into metric threads and npt threads according to the requirements of the user's site.

9. steel pipes and cable wiring are available.

10. the circuit breaker installation method is hanging type.

main technical parameters


order note

1. accord with the model implication's rules to select regularly, and ex-mark should be added behind model implication;

2. if there are some special requirements, it should be pointed as ordering.