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Eaton B-Line series 4Dimension strut channel
Manufacturer Resources
Product Specs
- Certifications:
- Not Applicable
- Channel Type:
- 4D21
- Hole Pattern:
- SH
- Material Gauge:
- 18 Gauge
- Product Height:
- 1.06 IN
- Product Length Depth:
- 120 IN
- Product Weight:
- 10.32 LB
- Product Width:
- 2.12 IN
- Department:
- Electrical
- Product Finish:
- Plain
- Product Material:
- Steel
- Product Length:
- 120 in
B-LINE 4D21SH-120PLN – Frequently Asked Questions
1) Is plain finish strut channel OK for outdoor or damp locations?
No. The 4D21SH-120PLN is plain finish steel, meaning bare mill steel with no zinc or paint on it. Keep it to dry indoor runs, mechanical rooms, and interior ceilings. For exterior, parking structures, wash-down areas, or anywhere condensation is expected, order the same 4D21 channel in a galvanized finish instead.
2) Is 18 gauge strut channel strong enough for my conduit run?
The 4D21 is rolled from 18 gauge steel, which is the lighter end of the strut range. It handles conduit, small bore pipe, cable tray drops, and equipment bracketing on reasonable spans. For heavy pipe, long unsupported trapeze spans, or seismic bracing, step up to a 12 gauge channel and size it against the load table for your span rather than using this one.
3) Will 4D21 half-height strut accept standard 1-5/8 inch strut fittings?
The 4D21 profile is 2.12 inches across the outside and 1.06 inches deep, which is the shallow version of the standard 1-5/8 inch wide strut family. Fittings that engage the channel lip, spring nuts and clamps, work with it. Deep-section fittings and back-to-back brackets sized for full 1-5/8 inch height channel will not seat on a half-height section, so match the fitting to the channel depth.
4) What does the SH in B-Line 4D21SH mean for mounting?
SH is the slotted hole pattern, so the channel comes punched along the back rather than solid. That lets you bolt the run to structure anywhere along its length without field drilling, and gives some adjustment to square up a rack or trapeze before you torque the fasteners down.
5) How heavy is a 10 foot stick of B-Line 4D21 strut, and can one person carry it?
A full 120 inch length of 4D21SH-120PLN weighs 10.32 pounds, so a single stick is a one-man carry up a ladder. Figure roughly 1 pound per foot when you are working out how many sticks fit a truck load or what a bundle adds to a lift.
6) Does B-Line 4D21 strut channel come with nuts, bolts, or brackets?
No, the 4D21SH-120PLN is the bare channel only. Budget separately for channel nuts (spring nuts sized to the 1-5/8 inch opening), the bolts or threaded rod to hang it, pipe clamps or conduit straps for whatever you are supporting, and end caps if the cut ends will be exposed.
7) Can I cut B-Line 4D21 strut to length in the field?
Yes. It is 18 gauge steel and cuts cleanly with a bandsaw, chop saw with a metal blade, or portable band saw. Because the finish is plain and uncoated, a cut end is bare steel either way, so there is no galvanizing to touch up. Deburr the cut and cap it where it is within reach.
How fast can I get the B-LINE 4D21SH-120PLN 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 B-LINE 4D21SH-120PLN come with a warranty?
Absolutely. The B-LINE 4D21SH-120PLN 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 B-LINE 4D21SH-120PLN?
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selection,
installation tips, and troubleshooting. Contact Us
Why buy the B-LINE 4D21SH-120PLN from ZenSupply?
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