EDS and EFS Series Explosionproof Selector Switch Control Stations
Factory sealed enclosures are used:
To prevent arcing of enclosed device from causing ignition of a hazardous atmosphere external to the enclosure
In conjunction with magnetic starters or contactors for remote control of motors
Manual motor starters are used:
For manual starting of small AC/DC motors
To provide manual starting and stopping and motor running protection (with heater)
FEATURES
Reduce installation problems
Eliminate external seals
Lower installation costs
Improve safety
Are used with general purpose snap and pushbutton type switches
Standard neoprene covers for front operated pushbuttons; prevents accumulation of dirt and entrance of water around operating shafts
Mounting lugs and taper tapped hubs with integral bushings
Large machine screws for fastening covers to bodies
Lockout provisions on front operated pushbutton (marked "STOP" and "OFF") and selector switch covers
Lockout hole for padlock having 1/4" hasp is provided when used with covers for front lever and side rocker type operation
Close tolerances in machining of wide, mating flanges and journalled shafts and bearings for front button operation, produces flametightness of enclosure joints
On enclosures with front lever and side rocker type operating handles, threaded type shafts and bushings are used to ensure flametightness
Dead end (EFS or EDS) or through feed (EFSC or EDSC) hubs – 1/2" to 1" sizes
CERTIFICATIONS
Class I, Divisions 1 & 2, Groups B*, C, D
Class II, Division 1, Groups E, F, G
Class II, Division 2, Groups F, G
Class III
NEMA 3, 7B*CD, 9EFG