Hammond HP350PCLG 3.5" Conduit Type 4X Polycarbonate Hole Plug, Lt. Gray

The HP350PCLG hole plug seals a 3.5" conduit-size opening in light gray enclosures. Finished in RAL7035 Light Gray, it matches the common light gray cabinet color and covers plugged holes from 4.00 in (102 mm) to 4.25 in (108 mm); its trade-size reference is 3-1/2" conduit at 4.125 in. It suits integrators and electricians who need to close a surplus entry without compromising the enclosure seal.

Construction is molded polycarbonate for both plug and nut, with a closed cell EPDM/neoprene blend gasket. Together they seal the unused opening against dust, oil and water.

Dimensions to plan around:

• External diameter: 4.62 in (117 mm)
• Head: .24 in (5.97 mm); body: .75 in (19.05 mm)
• Installed depth: .24 in + .75 in + panel wall thickness
• Shipping weight: 0.4 lbs (0.18 kg)

Installation needs no tools. The self centering, anti-rotational design lets one person fit the plug, and it grips walls between 0.06 in (2 mm) and 0.25 in (6 mm), or 16 gauge to 1/4". The HPN4PC series is recognized (UR/cUR) for use with UL and CSA listed Type 1, 3, 3R, 4 and 4X enclosures, and the part is REACH and RoHS compliant. For ANSI 61 gray panels choose HP350PCGY.