Thomas Betts NJ664 Polycarbonate Enclosure 6x6x4 Nema 4X

Product Description

The THOMAS BETTS NJ664 is a standard polycarbonate electrical enclosure designed to house and protect electrical components in demanding indoor and outdoor environments. Measuring 6 inches wide, 6 inches high, and 4 inches deep, it carries a broad NEMA rating spanning Types 1, 2, 3, 3S, 3SX, 3X, 4, and 4X, making it suitable for applications requiring protection from dust, rain, sleet, and corrosion. The hinged flat cover closes with captive screws, and the enclosure ships with hinges and swing panels included. Electricians and controls technicians install this enclosure when routing or terminating low-voltage or line-voltage conductors in locations where environmental protection and code compliance are both required.

This enclosure fits residential, light commercial, and industrial control applications where a compact, corrosion-resistant housing is needed. The polycarbonate construction makes it appropriate for installations where metal enclosures are unsuitable due to corrosion concerns or weight constraints. Typical use cases include junction boxes, small control panels, and terminal block enclosures mounted on walls, panels, or machinery. The NEMA 4X rating allows deployment in wet or washdown areas, and the impact-resistant material holds up in environments with mechanical abuse risk.

Key Features

• Polycarbonate construction provides impact resistance and corrosion immunity
• NEMA 1, 2, 3, 3S, 3SX, 3X, 4, and 4X rated for broad environmental coverage
• Hinged flat cover with captive screws for secure, tool-accessible entry
• Includes hinges and swing panels — no separate hardware required
• cULus Listed (E88685) and UL Listed 50 for code-compliant installations
• Compact 6 x 6 x 4 inch footprint suits tight mounting locations

Compatibility

Designed as an OEM-style standard electrical enclosure suitable for general-purpose control and junction applications requiring NEMA 4X-rated polycarbonate housing.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and any applicable local codes. De-energize all circuits before opening or wiring the enclosure. Ensure all conduit entries are properly sealed with rated fittings to maintain the NEMA environmental rating after installation. Do not drill or modify the enclosure in ways that compromise its rated ingress protection.