Bridgeport Fittings Porcelain ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$28.39
Bridgeport Fittings Porcelain Wire Holders 1-1/4" Trade Size Clamp-On Service Entrance System

Bridgeport Fittings Porcelain Wire Holders 1-1/4" Trade Size Clamp-On Service Entrance System

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Model: MWH-1

In Stock (leaves warehouse same day if ordered before 3pm ET)

$28.39
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Bridgeport Fittings Porcelain Wire Holders 1-1/4" Trade Size Clamp-On Service Entrance System

Professional Non-Conductive Wire Management for Service Entrance Applications

Bridgeport Fittings Porcelain Wire Holders deliver reliable wire management for service entrance mast installations with professional-grade porcelain construction. These clamp-on adjustable wire holders accommodate 1-1/4" through 3" service entrance mast applications, featuring a non-conductive porcelain design with 1" x 15/16" wire opening for secure wire guidance and electrical isolation.

Professional Features & Benefits

  • 1-1/4" Trade Size Compatibility: Designed for precise fit on service entrance mast installations with professional sizing standards.
  • Non-Conductive Porcelain Construction: Provides electrical isolation and weather resistance for long-term outdoor service entrance applications.
  • Two-Bolt Clamp Design: Creates quick, flexible installation across variety of conduit sizes from 1-1/4" through 3" mast diameter.
  • 1" x 15/16" Wire Opening: Precisely sized porcelain guide ensures secure wire positioning and protection during installation and service.
  • NRTL Approved Performance: Meets stringent bonding and grounding requirements for professional electrical installations.
  • Compact 4.125" Length Design: Professional dimensions provide secure mounting while maintaining clearance requirements.

Technical Specifications

  • Bpt Trade Size: 1-1/4"
  • Collection Folder: MWH-1
  • Country Of Origin: China
  • Department: Electrical
  • Division: Electrical H1
  • Easy Installation: Two-bolt clamp creates a quick, flexible and easy installation to a variety of conduit
  • Field Application: Clamp-on adjustable wire holder for 1 1/4 " through 3" service entrance mast, approx 1" by 15/16"
  • Npd Date Electrical: 2008-07-01T00:00:00.000Z
  • Porcelain Wire Hole: Non-conductive porcelain guides wires through a 1" x 15/16" wire opening
  • Product Family: Electrical Supplies
  • Product Length: 4.125 in
  • Product Material: Porcelain
  • Product Weight: 143.5 lbs
  • Product Width: 1.8125 in
  • Professional Performance: All Bridgeport Fittings are NRTL approved and meet the stringent bonding and grounding requirements
  • Sub Division: Electrical-E H2

Professional Applications

  • Residential Service Entrance Installations
  • Commercial Building Electrical Service
  • Multi-Unit Property Service Entrance
  • Professional Office Building Electrical
  • Retail Establishment Service Connections
  • Light Industrial Electrical Service
  • Municipal and Institutional Facilities

Why Choose Bridgeport Fittings Quality?

Bridgeport Fittings delivers professional-grade electrical components with NRTL approval and compliance with stringent bonding and grounding requirements. The porcelain construction provides long-term durability and electrical isolation performance for demanding service entrance applications, ensuring reliable wire management in professional electrical installations.

Manufacturer Resources

Product Specs

Bpt Trade Size:
1-1/4"
Department:
Electrical
Division:
Electrical H1
Product Length:
4.125 in
Product Material:
Porcelain
Product Weight:
143.5 lbs
Product Width:
1.8125 in
Sub Division:
Electrical-E H2
Product Type:
Wire Holder
Product Subgroup:
Service Entrance Fittings
Product Group:
Conduit & Raceway

Bridgeport Fittings MWH-1 – Frequently Asked Questions

1) Will the Bridgeport MWH-1 porcelain wire holder clamp onto a 2 inch or 3 inch service entrance mast?
Yes. The MWH-1 is a clamp-on adjustable wire holder that fits masts from 1-1/4 inch through 3 inch, so a 2 inch or 3 inch rigid mast is within range. The two-bolt clamp is what gives it that span, and it is the same part across the range rather than a size-specific holder.
2) How big a conductor will fit through the Bridgeport porcelain wire holder opening?
The porcelain guide gives an opening of roughly 1 inch by 15/16 inch. That is the hard limit on conductor size and count through the holder, so size your service entrance conductors (including insulation) against that before you set the mast.
3) Why use a porcelain wire holder instead of a metal one on a service mast?
Porcelain is non-conductive, so it isolates the service entrance conductors from the mast and the grounded metal around it while still physically supporting them. On an exposed outdoor mast that also means it takes weather without corroding. A metal holder gives you no isolation, which is why the porcelain body is the standard choice at the mast head.
4) Do Bridgeport porcelain wire holders meet bonding and grounding requirements for a permitted service install?
Bridgeport states all of its fittings are NRTL approved and meet stringent bonding and grounding requirements. That is the approval language on the MWH-1 holder as well. No specific UL file or code article number is given beyond the NRTL approval.
5) Is any drilling or mast prep needed to install the MWH-1 porcelain wire holder?
No mast prep. The holder clamps on with two bolts, so it tightens directly onto the conduit at whatever height you need and can be repositioned. Nothing gets drilled or threaded, which is what makes it workable on an existing mast that is already set.
6) Can I standardize the MWH-1 porcelain wire holder across mixed residential and commercial services in my portfolio?
That is what the adjustable clamp is for. Because one part covers 1-1/4 inch through 3 inch masts, the same holder works on a small residential service riser and on a larger commercial or multi-unit mast, so you can stock a single item instead of one per trade size.
7) What are the dimensions of the Bridgeport MWH-1 wire holder for clearance planning?
It measures 4.125 inches long and 1.8125 inches wide. That is the footprint to check against your weatherhead and any nearby structure or drip loop clearance when you pick the mounting point on the mast.
8) Is one part number the only thing I need to order for the Bridgeport porcelain wire holder?
Yes. The holder is ordered as MWH-1, the clamp-on adjustable version covering 1-1/4 inch to 3 inch mast. There are no finish or size options to specify.
How fast can I get the Bridgeport Fittings MWH-1 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 Bridgeport Fittings MWH-1 come with a warranty?
Absolutely. The Bridgeport Fittings MWH-1 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 Bridgeport Fittings MWH-1?
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 Bridgeport Fittings MWH-1 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.
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