Enclosure 6N Pressure Switches
Page 1
CHAPTER
1
INTRODUCTION
The Neo-Dyn
®
Switches described in this manual are weather -
proof, electromechanical sensing devices designed for a wide
range of applications in pneumatic and hydraulic systems up to
150 psig. The Enclosure 6N Switches are for use in Zone 1
Potentially Explosive Atmospheres (Division 1 hazardous
locations).
The wetted material for these Vacuum Switches include a
polyimide (Kapton) sensing diaphragm, nitrile O-ring, corrosion
resistant steel (CRES) helical spring and aluminum alloy or CRES
pressure port. Viton or EPR O-rings are also available.
Set points are easily adjusted by turning an adjustment screw
located inside the pressure port. This is discussed further in
Chapter 3.
The standard configuration of these switches will switch up to 11 amp
at 125 or 250 VAC, 5 amp resistive at 28 VDC, or 0.5 amp
resistive at 125 VDC. When ordered with M Option, the switch is
rated for currents to 1 amp, but its bifurcated gold contacts will
reliably switch currents in the milliampere and microampere ranges.
These switches have CE Mark, with weatherproof enclosure,
IP 66 ingress protection that meet the requirements of NEMA 3.
3R, 3S, 4, 4X and 13.
The Enclosure 6 electrical subassemblies are approved by
Underwriters Laboratories, CSA International and Factory Mutual
as well as having SIRA approval for ATEX certification.