HUBBELL-WIEGMANN Hole Plug: Nonmetallic, For 1.25 in Hole Dia - Max, Fiberglass, 4X, Matte

The HUBBELL-WIEGMANN Hole Plug is a nonmetallic oiltight hole seal designed for conduit holes up to 1.25 inches in diameter. Constructed from fiberglass with a matte gray finish, it includes a lock nut and carries a…

SKU 3G-OTH-07131

Also listed as: HWFGHP100125 · HW FGHP 100 125

Brand

HUBBELL-WIEGMANN

Item

Hole Plug: Nonmetallic, For 1.25 in Hole Dia - Max, Fiberglass, 4X, Matte

Local availability & support

Delivery: Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment: Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

HUBBELL-WIEGMANN

Manufacturer Part Number

HW-FGHP-100-125 

Type

For 1.25 in Hole Dia - Max, Fiberglass, 4X, Matte, Gray 

Material

Fiberglass 

Color

Gray 

Finish

Matte 

Includes

Lock Nut 

For Hole Type

Conduit 

NEMA Enclosure Rating

4X

Technical Documents

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HUBBELL-WIEGMANN Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is the HUBBELL-WIEGMANN HW-FGHP-100-125 hole plug used for?

This nonmetallic oiltight hole seal seals unused conduit openings up to 1.25 inches in diameter. It is used in industrial enclosures, panelboards, and junction boxes to maintain NEMA 4X protection against water, dust, and corrosion. The fiberglass construction and matte gray finish suit harsh environments.

What are the specifications of the HUBBELL-WIEGMANN HW-FGHP-100-125?

The plug fits a 1.25 inch maximum hole diameter, is made of fiberglass with a matte gray finish, and includes a lock nut. It carries a NEMA 4X enclosure rating for corrosion resistance. The manufacturer part number is HW-FGHP-100-125.

Where to buy the HUBBELL-WIEGMANN HW-FGHP-100-125 worldwide?

3G Electric supplies the HUBBELL-WIEGMANN HW-FGHP-100-125 hole plug to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this fiberglass oiltight seal.

How to install the HUBBELL-WIEGMANN HW-FGHP-100-125 hole plug?

Insert the plug into the conduit knockout hole from the outside of the enclosure. Secure it from the inside using the included lock nut. Tighten the nut until the plug seats firmly against the enclosure wall. Ensure the gasket (if present) compresses evenly to maintain the NEMA 4X seal.

Used in

Common applications for HUBBELL-WIEGMANN

Industrial control panels — Hubbell-Wiegmann back panels (e.g., HW-WM4836A) for mounting relays and terminal blocks.

Outdoor electrical distribution — NEMA 4X enclosures with Hubbell-Wiegmann fiberglass hole plugs for weatherproof sealing.

Automation equipment cabinets — Swing-out panel kits (e.g., HW-P1412SPK) for easy access to PLC and drive components.

Maintenance and repair — Replacement covers (e.g., SC0810) for restoring NEMA 1 screw cover enclosures in manufacturing plants.

Corrosive environments — Polycarbonate enclosures and nonmetallic hole plugs for chemical processing or wastewater facilities.

Electrical panel upgrades — Aluminum back panels (e.g., HW-WM2016A) for lightweight mounting in retrofit projects.

HUBBELL-WIEGMANN Products

3G Electric supplies HUBBELL-WIEGMANN oiltight hole seals. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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