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Evolution™ Series 4-Gang Hinged Wall Box

EHWB4-WH Wiremold
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Designed to fit into the 16'' on center (406mm) opening between studs in a standard 2''x 4'' (51mm x 102mm) wall. For both new work and old work applications. The box has 4-gang standard NEMA size openings and is designed to accommodate power, communications, and A/V devices. The box has been designed with a cable pass-through capability, allowing multiple service access points to be daisy chained together, eliminating the need for multiple conduit runs. Box includes temporary cover. Finished cover assembly (EHWB4C) sold separately.

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  • Available in both 4- and 8-gang versions to provide maximum flexibility.
  • Built-in tunnel & feed through capability allows service feeds to be fed through the box, reducing the number f feeds required to reduce installation time.
  • Cover opens a full 180° and can be painted to blend with room decor. Includes integrated handle, lock and key set for security, and flush egress door for cabling.
  • Designed to accept standard 1- to 4-gang device plates. No proprietary plates simplifies ordering and installation.
  • Accepts Legrand AVIP devices, plus A/V devices from leading manufacturers.
  • 3 5/8'' [92mm] of space behind device plates provides the extra depth needed for wiring larger A/V devices.
  • Accepts trade size service feeds from 3/4'' up to 2''. Knockout plates are removable and interchangeable, providing multiple options.
  • Can be installed in new work and old work installations. New hardware not necessary.
  • Both boxes (4- and 8-gang) fit are designed to fit in 16'' opening between studs in standard 2'' x 4'' [51mm x 102mm] wall.
  • UL Listed to U.S. and Canadian safety standards.
  • Finished interior eliminates industrial look for upscale installations, while increasing visibility, making it easier to locate.


General Info
Product Line Wiremold
UPC Number 786564085577
Country Of Origin United States
Construction Assembled
Application Sector Commercial
Standard cULus Listed Metallic Outlet Boxes: File E2961 Guide QCIT, Meets Article 314.27(C) of NEC.
Type Floor Box
Product Width US 7.98 in
Product Depth US 3.98 in
Product Length US 10.98 in
Cubic Capacity 56.9 cu in
Additional Information
RoHS Conformant Yes This product meets the material restrictions of Article 4 of the RoHS Directive (2011/65/EU), including Commission Delegated Directive 2015/863.
Listing Agencies / 3rd Party Agencies
cULus ListingNumber  E2961
cULus Listed  Yes
Buy American Act Compliance
Technical Information
Cable Entry Knockouts in
Number of Outlets 4


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Questions & Answers

Do you make a hinged cover for the EFSB4 wall box or an adapter for the box that allows it to have a hinged cover installed without damaging the wall finish. The owner changed his mind and now wants the hinge instead of the plate held on by screws.

Asked by: Travis Lenhart
Hello Travis, A hinged cover option isn't available for the EFSB4. However, we do offer the EHWB4 four-gang wall box which does have a hinged cover option. The cover is available in white (EHWBC4-WH) or black (EHWBC4-BK) and is made to fit the EHWB4. Thank you!
Answered by: Wiremold Tech Support
Date published: 2022-06-23
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