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Manufacturer Resources
Product Specs
- Country Of Origin:
- United States
- Selling Unit Of Measure:
- each
- Standards:
- UL E2969
- Surface Finishing:
- Pre-Galvanized
- Volume:
- 5 in³
- Department:
- Electrical
- Product Group:
- Boxes & Enclosures
- Product Subgroup:
- Box Covers
- Product Type2:
- Outlet Box Covers
- Product Size:
- 4 Inches
- Product Color:
- Silver
- Product Shape:
- Square
- Product Material:
- Steel
- Product Type:
- Raised Device Cover
Steel City RS 4 – Frequently Asked Questions
1) What is the Steel City RS 4 cover used for?
The RS 4 is a 4 inch square steel box cover punched for a single 4-wire twist-lock receptacle. It closes off a standard 4 inch square outlet box and carries one locking device, the kind used for 3-phase or 4-wire cord-and-plug equipment drops. It is sold individually.
2) Will the RS 4 cover fit a standard 4 inch square outlet box?
Yes. It is a square cover sized at 4 inches, so it mounts to the two tapped cover holes on any standard 4 inch square box. The receptacle opening is dedicated to one 4-wire twist-lock device, so it will not accept duplex receptacles, toggle switches, or decorator devices.
3) Can a RACO 897KH swivel cover be used in place of the Steel City RS 4 on a 4 inch square box?
No - they do different jobs even though both mount to a 4 inch square box. The Steel City RS 4 is a steel square box cover punched for a 4-wire twist-lock single receptacle, so it closes the box and presents the device opening. The RACO 897KH is a KWIK-HANG Series swivel cover for a 4 in. square box that takes 1/2 or 3/4 in. pipe, so it is used to hang or support the box from conduit rather than to mount a receptacle. If you need the twist-lock receptacle face, the RS 4 is the one; if you need a pipe-hung box closure, the 897KH is the one.
4) Can a pre-galvanized steel box cover be used outdoors or in a damp location?
Pre-galvanized steel is a dry and indoor industrial finish, not a weatherproof assembly. The RS 4 is a flat device cover with no gasket or weatherproof lid, so for exterior or wet locations you need a listed weatherproof cover and enclosure instead. Inside, on exposed conduit runs and machine drops, the galvanized finish is what you want.
5) What part number do I order for the Steel City 4-wire twist-lock single receptacle cover?
Order Steel City RS 4. That is the manufacturer part number, and it ships as a single cover rather than a carton quantity.
How fast can I get the Steel City RS 4 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 RS 4 come with a warranty?
Absolutely. The Steel City RS 4 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 RS 4?
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 RS 4 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.