Description
Bussmann Explosionproof Snap Switch Control Station, 1-Gang Dead End, Series: EDS, 120/277 V AC, 20 A, 4-Way Contact Configuration, Front Operated Lever Operator, Handle Actuator, Thread Connection, NEMA 3/7BCD/9EFG NEMA Rating, Surface Mounting, Copper Free Aluminum, Natural, 3-1/2 in W x 3-1/16 in D Dimensions
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 in 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
- Dust-ignitionproof, rain tight wet locations
- 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
- For manual starting of small AC/DC motors
- To provide manual starting and stopping and motor running protection (with heater)
- 3/4 in hub
Applications:
Chemical Plants, Oil and Gas Refineries, Paint and Varnish Manufacturing Plants, Gasoline Bulk Loading, Terminals, Grain Elevators and Grain Processing
Standards/Approval:
- UL 1203
- CSA C22.2, Class I, Division 1 and 2, Groups B, C, D, Class II, Division 1, Groups E, F, G, Class II, Division 2, Groups F, G, Class III
