You may also like
ABB PVC-Coated Clamp-Back Spacer, Malleable Iron
The ABB PVC-Coated Clamp-Back Spacer is a malleable iron spacer designed to hold conduit off a mounting surface, allowing airflow between the conduit and the wall or structure. Available for pipe size 3/4 Inch/21 Metric, this clamp-back spacer is finished in dark gray PVC coating for added corrosion protection and is designed for use with a one-hole pipe strap. It is a practical solution for professional electricians who need reliable standoff spacing on conduit runs.
Key Features
- Trade Size: Pipe Size 3/4 Inch/21 Metric for standard conduit runs.
- Durable Construction: Malleable iron body for strength and long service life.
- Finish: PVC coated in dark gray for corrosion protection in demanding environments.
- Airflow Spacing: Provides spacing for airflow between conduit and the mounting surface.
- Compatible Hardware: Designed for use with a one-hole pipe strap.
- Type: Clamp-Back Spacer.
Technical Specifications
- Type: Clamp-Back Spacer
- Pipe Size: 3/4 Inch/21 Metric
- Material: Malleable Iron
- Coating: PVC, Dark Gray
- Compatible With: One-Hole Pipe Strap
Typical Applications
- Commercial and Industrial Electrical Installations
- Conduit and Raceway Standoff Mounting
- Corrosion-Prone or Damp Environments
- New Construction and Renovation Projects
Why ABB?
ABB clamp-back spacers combine a rugged malleable iron body with a PVC coating for added corrosion resistance, giving electrical contractors a dependable way to maintain proper conduit standoff and airflow. Built to work with standard one-hole pipe straps, this spacer supports clean, code-compliant conduit installations across commercial and industrial projects.
Manufacturer Resources
Spec Sheet
Product Specs
- Product Type:
- Conduit Clamp
- Product Finish:
- PVC Coated
- Product Material:
- Malleable Iron
- Product Color:
- Dark Gray
- Product Size:
- 3/4"
- Department:
- Electrical
- Product Group:
- Hangers, Supports & Fasteners
- Product Subgroup:
- Clamps
Ocal CB3/4-G – Frequently Asked Questions
1) Do I need anything else to mount conduit with a clamp-back spacer?
Yes. The clamp-back spacer is the standoff only, it sits between the mounting surface and the strap. You still need a one-hole pipe strap to capture the conduit, plus the fastener into the wall or structure. ABB's spacer is built to pair with a standard one-hole strap.
2) Is the ABB CB3/4-G a spacer or a complete conduit clamp?
It is a spacer, not a clamp. The clamp-back is the backing block that creates the standoff; the strap over the top is what actually holds the pipe. Ordering CB3/4-G alone gets you the malleable iron spacer body and nothing else.
3) Why use a clamp-back spacer instead of strapping conduit flat to the wall?
A clamp-back holds the conduit off the surface so air can move behind it. That matters in damp or washdown areas where water trapped between pipe and wall starts corrosion, and it keeps the run off of a surface you do not want to sit metal against. Strapping flat is fine on dry interior work; spacing is what you want in corrosion-prone environments.
4) Is a PVC-coated malleable iron spacer suitable for a wet or corrosive area?
That is the point of the coating. The body is malleable iron for strength, with a dark gray PVC coating over it for corrosion protection, and ABB lists damp and corrosion-prone environments among the intended uses. Pair it with PVC-coated straps and fasteners so you are not introducing a bare steel weak point in the same assembly.
5) What color is the ABB PVC-coated clamp-back spacer, and will it match my other coated fittings?
Dark gray, which is the standard PVC-coated conduit system color, so it reads consistently alongside coated straps, couplings and bodies on the same run. Only one model is offered, CB3/4-G, so there is no alternate finish to choose.
6) Can I use these clamp-back spacers on a facility standardization spec for commercial conduit runs?
They fit that use. ABB lists commercial and industrial electrical installations, conduit and raceway standoff mounting, and both new construction and renovation as typical applications. Since only the 3/4 inch version is offered under CB3/4-G, a facility standardizing across multiple conduit sizes will need the matching size for each run rather than one part number throughout.
How fast can I get the Ocal CB3/4-G 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 Ocal CB3/4-G come with a warranty?
Absolutely. The Ocal CB3/4-G 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 Ocal CB3/4-G?
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 Ocal CB3/4-G 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.