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Manufacturer Resources
Spec Sheet
Product Specs
- Assembly Arrangement:
- Surface mounted housing
- Colour:
- Silver
- Cubic Capacity:
- 14 Cubic Inches
- Knockouts:
- Yes
- Mounting Direction:
- Vertical
- Number Of Outlet:
- 1
- Outer Dimensions Inches:
- 13.75x10x6.25
- Outer Quantity:
- 25
- Standards:
- UL E2969
- Transparent:
- N
- Unspsc:
- 39121306 Switch box
- Weight Uom:
- 50 lbs. per 100
- Width Of Device:
- 50.8mm
- Department:
- Electrical
- Product Group:
- Boxes & Enclosures
- Product Subgroup:
- Electrical Boxes
- Product Type:
- Switch Box
- Product Size:
- 3 Inches Height x 2 Inches Width x 2-3/4 inches depth
- Product Details:
- Switch Boxes
- Product Color:
- Silver
- Product Material:
- Steel
Steel City CW3/4-25 – Frequently Asked Questions
1) How many conductors can I put in a Steel City CW3/4-25 switch box?
The CW3/4-25 is a 14 cubic inch single-gang steel switch box. Box fill is what governs here, so that 14 cubic inches is the number you work from when counting conductors, devices, clamps and grounds for your wire size. If you need more volume on a single-gang opening, a deeper or non-metallic box such as the Allied Moulded P-181 FlexBox is rated 18 cubic inches.
2) What are the actual box dimensions of the Steel City CW3/4-25?
3 inches height by 2 inches width by 2-3/4 inches depth, which is the standard single-gang switch box footprint with a deep back. The 2 inch width also shows up as 50.8mm in the device width spec. Confirm you have 2-3/4 inches of clear depth behind the finished wall surface before you set it.
3) I am adding a switch to an existing finished wall. Is the CW3/4-25 the right box?
For cut-in work on a finished wall you want a box designed to clamp to the drywall rather than one that mounts to structure. The RACO 517 TIGER GRIP is an old-work gangable steel switch box, and the Cantex EZ20SB is made for steel stud framing. The CW3/4-25 is a surface mounted housing, so plan it where you can fasten the box itself.
4) I need more than 14 cubic inches in a single-gang switch box - what should I use instead of the Steel City CW3/4-25?
The Steel City CW3/4-25 is a single-gang steel switch box rated at 14 cubic inches. If your conductor count pushes you past that, the Allied Moulded P-181 FlexBox is a 1-gang thermoplastic switch/receptacle box rated at 18 cubic inches for residential work. The trade-off is material: the CW3/4-25 is steel, while the P-181 is thermoplastic, so raceway and bonding methods differ.
5) Can I use the Steel City CW3/4-25 in a steel stud wall, or is there a box made for that?
The Steel City CW3/4-25 is a surface mounted single-gang steel housing with knockouts, so it is not a stud-mount box. For framing into steel studs, the Cantex EZ20SB EZ Box is a 1-gang non-metallic box specifically built as a steel stud box. Note the material difference: the EZ20SB is non-metallic, while the CW3/4-25 is steel.
6) Is the Steel City CW3/4-25 a metal box or plastic?
Steel, finished silver. A steel box lets you bond the box itself as part of the equipment grounding path, which is what you want with armored cable or metal conduit runs. If the job is non-metallic cable in a residential wall and you want no bonding of the enclosure, a thermoplastic or fiberglass box like the Cantex EZ20SB or Allied Moulded 2302-NKV is the other direction to go.
7) Does the CW3/4-25 switch box have knockouts for conduit or cable connectors?
Yes, the CW3/4-25 comes with knockouts, so you punch only the openings you need and leave the rest closed. It is a single-gang box with one device opening, mounted vertically.
8) I need to gang two switches in one box - can the Steel City CW3/4-25 do that?
The Steel City CW3/4-25 is a single-outlet steel switch box and is not described as gangable. For multi-device work, the RACO 517 and RACO 518S are both gangable steel switch boxes, and the Allied Moulded 2302-NKV is a fiberglass reinforced 2-gang box. Choose by wall type: the RACO 517 is an old-work box, while the 2302-NKV is a molded two-gang box.
9) Is the Allied Moulded 2302-NKV a substitute for the Steel City CW3/4-25?
No. The Steel City CW3/4-25 is a single-gang steel switch box with one outlet opening, 3 inches by 2 inches by 2-3/4 inches deep. The Allied Moulded 2302-NKV is a fiberglass reinforced 2-gang switch box, so it covers a two-device opening and uses a two-gang plate. Specify the 2302-NKV only where the wall opening and device count are actually two-gang.
10) What should I use instead of the Steel City CW3/4-25 if I want push-in cable connectors already on the box?
The Steel City CW3/4-25 is a 14 cubic inch single-gang steel switch box with knockouts, so cable connectors are added separately. If you want the connector integral to the box, the RACO 518S is a gangable switch box 2-1/2 inches deep with a STAB-IT series connector. Depth differs as well: the CW3/4-25 is 2-3/4 inches deep against 2-1/2 inches on the 518S.
11) For a UL listed metallic switch box on a commercial job, does the Steel City CW3/4-25 or a non-metallic box fit the spec better?
If the drawing calls for metallic boxes, the Steel City CW3/4-25 is the fit: steel construction, UL E2969, 14 cubic inches, one device opening, vertical mounting. The non-metallic comparables take a different path - the Cantex EZ20SB is non-metallic and the Allied Moulded P-181 is thermoplastic - which changes how the equipment grounding conductor is handled at the box.
12) How many CW3/4-25 boxes come in a box, and what does the carton weigh?
They ship 25 to the carton. Weight runs 50 lbs per 100 boxes, so a 25-count carton of steel boxes is a modest lift. The shipping carton measures 13.75 x 10 x 6.25 inches.
13) Is there a spec sheet for the Steel City CW3/4-25?
Yes, Steel City publishes a spec sheet for the CW3/4-25 and it is linked from the product information. Useful if you are submitting the box against an electrical drawing or a standardization package.
How fast can I get the Steel City CW3/4-25 delivered?
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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 CW3/4-25 come with a warranty?
Absolutely. The Steel City CW3/4-25 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 CW3/4-25?
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