Porcelain mast wire holder · 1-1/4 in to 3 in service entrance mast fit · adjustable clamp-on · Bridgeport MWH-1
Porcelain clamp-on wire holder for 1-1/4 in to 3 in service entrance mast conduit. Commonly used to guide and support service entrance conductors at the mast; verify mast size, conductor layout, and local code before ordering.
What this product is for
This porcelain mast wire holder is used on service entrance mast installations to guide conductors and provide a non-conductive wire contact point. It clamps onto 1-1/4 in to 3 in trade size mast conduit.
Use for
Use for overhead service entrance mast work on residential, commercial, or light industrial installations where a clamp-on porcelain wire holder is specified. It is commonly selected when you need an adjustable holder that fits multiple mast sizes instead of stocking several fixed sizes.
Avoid for
Avoid using this as a general indoor cable support, a conduit hanger, or a substitute for hardware not intended for service entrance mast applications. Do not assume CSA or UL listing applies unless your project documentation accepts the product as specified.
Best for
Best for electricians and utility-related contractors working on mast service upgrades or replacements where the mast trade size falls between 1-1/4 in and 3 in. The adjustable clamp style helps simplify truck stock for common mast sizes.
Installed in
Typically installed on service entrance mast conduit above the roofline or at the service mast assembly. Fits 1-1/4 in to 3 in trade sizes, approximately 32 mm to 78 mm.
Why this product exists
This product provides a porcelain wire guide and clamp-on mounting method for mast service conductors. Compared with improvised supports, it is purpose-built for mast applications and sized for common service entrance conduit diameters.
Compared with similar products
Compared with fixed-size mast wire holders, this adjustable style covers a wider conduit range. Typical buying check: confirm the mast trade size and whether you need an adjustable clamp-on holder or a different mast fitting. Actual suitability depends on conductor type, service layout, utility requirements, and local electrical code.
Specifications
- Brand: Bridgeport
- Manufacturer part number: MWH-1
- Product type: Porcelain mast wire holder
- Mounting style: Clamp-on, adjustable
- Application: Service entrance mast
- Trade size range: 1-1/4 in to 3 in (approximately 32 mm to 78 mm)
- Wire opening: approximately 1 in x 15/16 in (approximately 25 mm x 24 mm)
- Material: Porcelain
- Approximate dimensions: 4-1/8 in x 1-13/16 in (about 105 mm x 46 mm)
- UNSPSC: 39121312
- ApplicationService entrance mast
- MaterialPorcelain
- MountingClamp-on, adjustable
- Dimensions4-1/8 in x 1-13/16 in (about 105 mm x 46 mm)
- Unspsc39121312
- BrandsBridgeport Fittings
- Stock in Elmira3
- Stock in Flesherton3
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Aptico Supply helps electricians, contractors, and commercial buyers get the electrical materials they need without unnecessary delays. Whether you are ordering for a jobsite, restocking service inventory, or arranging pickup, our delivery options are designed to keep work moving.
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Free daily delivery is available for larger contractor accounts.
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Free weekly delivery is available for smaller accounts in select service areas.
- Elmira area delivery: Tuesday
- Flesherton area delivery: Thursday
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- Elmira pickup available
- Flesherton pickup available
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See our local delivery coverage below. Delivery charges may apply outside regular route areas or for oversized items.
Delivery Questions
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Can I pick up my order?
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Do delivery charges apply?
Delivery charges may apply outside regular local routes, for smaller orders, or for oversized and heavy items.
Can you deliver to jobsites?
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