Thomas Betts NS16146 Polycarbonate Enclosure 14x16x6 Nema 4X

Product Description

The THOMAS BETTS NS16146 is a standard polycarbonate electrical enclosure rated for NEMA 1, 2, 3, 3S, 3SX, 3X, 4, and 4X environments. It measures 14 inches wide, 16 inches high, and 6 inches deep, making it a versatile housing for electrical components, terminal blocks, and control equipment. The enclosure features a screw flat cover and impact-resistant polycarbonate construction that holds up in demanding indoor and outdoor installations. It ships with captive cover screws, hinges, and swing panels included. Electricians and controls technicians specify this enclosure when a single housing needs to satisfy multiple NEMA rating requirements across varied site conditions.

This enclosure is suited for residential, commercial, and light industrial applications where protection against dust, water, and corrosion is required. Its polycarbonate material makes it a practical choice for installations where metal enclosures are undesirable due to corrosion exposure or weight constraints. Typical uses include housing PLCs, relays, terminal strips, and low-voltage control wiring in outdoor service panels, pump control stations, and equipment rooms. The 14 x 16 x 6 inch interior provides adequate space for mid-size control assemblies.

Key Features

• Impact-resistant polycarbonate construction suitable for indoor and outdoor use
• NEMA 1, 2, 3, 3S, 3SX, 3X, 4, and 4X multi-rating for broad environmental compliance
• Screw flat cover with captive cover screws for secure, tool-accessible closure
• Includes hinges and swing panels for flexible internal layout options
• cULus Listed (E88685) and UL Listed 50 certified
• 14 x 16 x 6 inch footprint accommodates mid-size control and terminal assemblies

Compatibility

Designed as an OEM-style standard electrical enclosure suitable for use wherever a NEMA 1 through 4X rated polycarbonate enclosure of this size is specified.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the NEC and applicable local codes. Disconnect and de-energize all circuits before mounting or wiring inside the enclosure. Ensure all conduit entries are properly sealed with rated fittings to maintain the NEMA 4X rating where required. Do not overtighten cover screws, as polycarbonate threads can strip; use hand tools and follow standard fastener practice for non-metallic enclosures.