Features：

 3 Point control(NS series)

 Manuel function

 Square shaft 12x12mm

 Two auxiliary switches

 Cast aluminum housing

 Protection level IP66

Meet the following standard

IEC60079-0:2017, EN60079-0:2012+A11:2013

Electrical Apparatus for Explosive Gas Atmospheres,General Requirements

IEC60079-1:2014, EN60079-1:2007 

Electrical Apparatus for Explosive Gas Atmospheres,Explosion-proof type: flame-proof

IEC60079-31:2013,EN60079-31:201

Equipment dust ignition protection by enclosure "t"

Usage and Maintenance

 The matching thread size of the cable joint and shell is M16 × 1.5, and the diameter of the cable is Φ 6 - Φ 8. The cable joint shall have Explosion-proof certificate.

 Tightening torque of ground terminal is 2N. m,Tightening torque of Flameproof joint is 3.2N.m.,External ground bolt M4X6, compressing 4mm² conductor.

 It is strictly prohibited to disassemble or open the cover without permission, and do not open the cover with electricity; please do not open it in dangerous occasions; wipe it with wet cloth when opening it.

 The interface shall be equipped with explosion-proof certified cable gland and have compatible protection mode.

 In addition to the use of the installation manual, during assemble, operation and maintenance,

the operator shall comply with the requirements of EN 60079-14

  The maintenance and repair shall meet the requirements of EN 60079-19.