The flameproof structure of ZH series explosion-proof products complies with the relevant provisions of GB3836.1-2010 "Electrical Equipment for Explosive Gas Atmospheres Part 1: General Requirements" and GB3836.2-2010 "Electrical Equipment for Explosive Gas Atmospheres Part 2: Flameproof Type "d" Protection Equipment". And the whole machine flameproof structure is adopted. The explosion-proof shell composed of various explosion-proof components of the product can withstand the explosion pressure generated by the explosion of explosive gas mixture in the shell, and can prevent the explosion in the shell from spreading to the explosive gas environment around the shell, that is, when the explosion occurs inside the product, it will not spread to the outside of the shell to detonate the explosive gas mixture outside the shell.

Precision Small Explosion-proof Electric Actuator

- Working voltage range:

Three-phase: 380VAC range: 340VAC~420VAC
Single-phase: 220VAC range: 200VAC~240VAC

- Working temperature range: -20℃~70℃; 
- Storage temperature range: -40℃℃~85℃.

- Humidity range: 
 ≤90%RH, no condensation; 
 no strong corrosive; 
 flammable and explosive gas or dust around.

- Analog signal feedback: 
 Feedback the current valve opening signal;
 usually DC4~20mA current signal;
 load capacity ≤750Q.

- Switch signal feedback: 
 4 groups of relay switch signals can be fed back;
 They are remote status, fault status, open position and closed position;
 2.6 Analog signal input: Detect input opening signal;
 usually DC4~20mA current signal, internal load size 195Q.

- Switch signal input: 

 Passive dry contact input, built-in 24V DC power supply;
 Common end is 24V+;
 Detect remote open, close, hold and other control signal inputs.