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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:
- 240 IN
- Product Weight:
- 20.64 LB
- Product Width:
- 2.12 IN
- Department:
- Electrical
- Product Finish:
- Yellow zinc chromate
- Product Material:
- Steel
B-LINE 4D21SH-240YZN – Frequently Asked Questions
1) Is yellow zinc chromate strut channel OK for outdoor or wet locations?
Yellow zinc chromate (the YZN suffix) is a plated steel finish meant for dry indoor use. It gives corrosion protection in conditioned interior spaces, mechanical rooms and above ceilings, but it is not a coating for exterior exposure, wash-down areas or corrosive process environments. For those, move to a hot-dip galvanized or stainless channel instead.
2) Will standard strut nuts and fittings fit the B-Line 4D21 channel?
The 4D21 profile is 2.12 in wide, which is the wider of the two common strut widths, so it takes 1-5/8 in series channel nuts, clamps and fittings across the open slot. What changes with 4D21 is the depth, not the slot: at 1.06 in high it is a shallow channel, so deep-throat fittings sized for a 1-5/8 in deep section can bottom out. Match fittings to the shallow depth.
3) What does the SH in B-Line 4D21SH-240YZN mean?
SH is the hole pattern designation on this 4D21 channel, so the back of the strut comes punched rather than solid. If your layout calls for a solid back or a different punching, order a different hole-pattern suffix in the same 4D21 profile.
4) Is 18 gauge strut channel heavy enough for hanging conduit and small pipe?
18 gauge is the light-duty end of the strut range, and combined with the shallow 1.06 in 4D21 section it is intended for lighter loads: conduit runs, cable tray drops, small pipe, equipment bracing and framing rather than heavy mechanical support. For long spans or heavy pipe, step up to a 12 or 14 gauge, 1-5/8 in deep channel.
5) What is the exact part number to reorder this B-Line strut channel?
Order Eaton B-Line part number 4D21SH-240YZN. The code reads as the 4D21 channel profile, SH hole pattern, 240 in length, YZN yellow zinc finish. Quote that full string if you are standardizing a building on one strut profile so the depth and punching match what is already installed.
How fast can I get the B-LINE 4D21SH-240YZN 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-240YZN come with a warranty?
Absolutely. The B-LINE 4D21SH-240YZN 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-240YZN?
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installation tips, and troubleshooting. Contact Us
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