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Manufacturer Resources
Product Specs
- Country Of Origin:
- United States (US)
- Selling Unit Of Measure:
- each
- Surface Finishing:
- Pre-Galvanized
- Volume:
- 5 in³
- Department:
- Electrical
- Product Group:
- Electrical Enclosures
- Product Subgroup:
- Boxes
- Product Type2:
- Outlet Box Covers
- Product Size:
- 4 Inches
- Product Color:
- Silver
- Product Shape:
- Square
- Product Material:
- Steel
Steel City RS4-10R – Frequently Asked Questions
1) What does the Steel City RS4-10R cover fit?
The RS4-10R is a raised square cover for a 4 inch square outlet box, so it mounts on standard 4 inch square boxes using the box's two diagonal cover screw holes. It is a surface-mount cover for a box set in the wall or ceiling, not a box itself.
2) Will this cover accept a 20 amp twist-lock receptacle?
Yes, the RS4-10R is punched for a single 20A twist-lock (locking) receptacle. A standard duplex or a straight-blade single receptacle will not match the round locking configuration opening, so order this one only if the device you are installing is a 20A twist-lock.
3) Is the Steel City RS4-10R cover suitable for damp or unfinished areas like a garage or shop?
It is pre-galvanized steel, which gives it corrosion resistance for dry and normally dry indoor locations such as garages, shops and mechanical rooms. Pre-galvanized steel is not a weatherproof or gasketed cover, so for wet locations outdoors you want a weatherproof cover and box assembly instead.
4) What is the exact part number to order for a 4 inch square raised cover with a 20A twist-lock opening?
Order Steel City RS4-10R. That is the manufacturer part number for the 4 inch square raised cover punched for a 20A twist-lock receptacle.
5) How is the RS4-10R sold, individually or in a pack?
Sold each, one cover per unit, so an MRO or maintenance buyer standardizing on locking receptacles can order exact counts rather than a carton quantity.
6) What color is the RS4-10R cover and will it match other Steel City steel boxes?
Finish is the bare silver-gray of pre-galvanized steel, the same look as other pre-galvanized steel boxes and covers, so it blends in on exposed industrial and shop installations. It is not a painted or plated decorative cover.
How fast can I get the Steel City RS4-10R delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Steel City RS4-10R come with a warranty?
Absolutely. The Steel City RS4-10R is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Steel City RS4-10R?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Steel City RS4-10R from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.