Appleton EFD/EFDB and EDS Explosionproof Control Stations and Pilot Lights
Appleton EFD/EFDB and EDS Series factory sealed control stations are explosionproof, dust-ignitionproof enclosures that confine internal arcing to prevent ignition of surrounding hazardous atmospheres during motor and equipment control operation. The family includes push buttons, selector switches, and pilot lights rated 10 Amp, 600 Vac, with EFDB and EDS bodies built from malleable iron and finished with a triple-coat of zinc electroplate, chromate, and epoxy powder coat. Rated for Class I, Division 1 and 2, Groups B, C, D and Class II, Division 1 and 2, Groups E, F, G as well as Class III locations with NEMA 3, 7CD, 9EFG protection, these control stations are built for chemical, petrochemical, and other process-industry environments where flammable vapors, gases, or combustible dusts are present.
Key Features
- Durable Construction: Malleable iron body with copperfree (4/10 of 1% max.) aluminum cover on EFDB units, finished with a triple-coat of zinc electroplate, chromate, and epoxy powder coat for corrosion resistance.
- Push Button Operation: Stainless steel push button shaft operates within a stainless steel bushing for long, maintenance-free operation; heavy-duty push buttons are rated 10 Amp, 600 Vac.
- Factory Sealed Design: Eliminates the need for adding sealing fittings and compound at each conduit entrance; pigtail leads from push buttons are factory sealed in the sealing well.
- Contact Reliability: Push button and selector switch contacts are silver cadmium oxide, sealed in a lower phenolic chamber isolated from corrosive elements for positive, trouble-free contact.
- Selector Switches: EFD/EFDB factory sealed selector switches feature nylon cam-operated, heavy-duty push buttons for 2-position or 3-position maintained contact operation with high thermal and arc resistance.
- Lockout Security: EFD/EFDB momentary push buttons include lockout type guards as standard, with a hole accepting locks up to a 1/4" hasp to prevent unauthorized operation.
- Pilot Lights: EFD/EFDB factory sealed pilot lights are supplied with a red jewel/guard assembly and a 120 Vac/Vdc, 50/60 Hz, 6 Watt, Type 6S6 lamp for visual confirmation of electrical function.
- Hardware & Wiring: Accurately tapped, tapered hubs with internal ground screw for tight, rigid joints and ground continuity; clearly marked terminals with brass screws and corrosion resistant captive stainless steel hex head cap screws.
Certifications & Compliance
- Class I, Division 1 and 2, Groups B, C, D
- Class II, Division 1 and 2, Groups E, F, G
- Class III
- NEMA 3, 7CD, 9EFG
Technical Specifications
- Refer to manufacturer documentation for complete technical specifications.
Typical Applications
- Remote and Local Control of Motors and Contactors
- Chemical and Petrochemical Processing Plants
- Refineries and Other Process Industries
- Classified Areas with Flammable Vapors or Gases
- Areas with Highly Combustible Dusts
- Panel and Motor Control Circuit Selection
Why Appleton?
Appleton engineers the EFD/EFDB and EDS Series with stainless steel operating components, sealed silver cadmium oxide contacts, and a triple-coat malleable iron finish to deliver dependable, code-compliant performance in demanding hazardous locations. Factory sealing removes an installation step while helping maintain the enclosure integrity that Class I, II, and III ratings depend on, making these control stations a reliable choice for professional electrical work in classified industrial environments.
What this is: ESKBBQ is a 1-gang blank factory-sealed EFD-series front cover — a cover plate with no pilot light, push button, or selector switch installed. It is used to close off an unused device position on an EFD/EFDB Series control station body, or as a spare cover for a future device. It is not a complete control station or a functioning pilot light/selector switch by itself. If you need a working push-button, selector-switch, or pilot-light control station, see the related Appleton EDS and EFD control station listings (different catalog numbers, sold complete with the device installed).
Manufacturer Resources
Product Specs
- Product Type:
- Control Station
- Product Finish:
- Zinc Electroplate, Chromate, Epoxy Powder Coat
- Voltage Rating:
- 600V
- Amperage Rating:
- 10A
- Standards:
- NEMA 3, 7CD, 9EFG
- Product Material:
- Malleable Iron
- Department:
- Electrical
- Product Group:
- Wiring Devices