Leviton 16P21-UW Nema 3R Single Pole Protective Cap

Product Description

The LEVITON 16P21-UW is a single pole protective cap rated for NEMA 3R environments. This male cap fits over female plugs to seal exposed electrical contacts when a cord or device is not in use. It provides a physical barrier against rain, sleet, and external ice formation, which is the core requirement of the NEMA 3R rating. Electricians and maintenance technicians use this cap on job sites and in permanent installations where outdoor or damp-location protection is required. The white finish and compact form factor make it suitable for residential and light commercial applications. It meets both CSA and UL listing requirements, confirming third-party safety verification.

This protective cap is used wherever a female plug is left disconnected in an outdoor or damp-rated installation. Typical applications include temporary power drops on construction sites, exterior receptacle covers, and cord-and-plug connected equipment stored between uses. NEMA 3R suitability makes it appropriate for covered outdoor locations such as building exteriors, loading docks, and equipment pads where rain exposure is likely but not continuous submersion.

Key Features

• NEMA 3R rated for rain, sleet, and external ice protection in outdoor and damp locations
• Male gender fits directly over female plugs to protect open contacts
• White color finish for standard residential and light commercial installations
• CSA Certified and UL Listed for third-party safety compliance
• Single pole design for straightforward single-circuit plug protection

Compatibility

Designed for use with female plugs requiring a NEMA 3R rated single pole protective cap in outdoor or damp-location installations.

Installation Notes

Installation and removal should be performed by a qualified electrician in accordance with NEC guidelines for damp and wet location wiring devices. Always de-energize the circuit before handling exposed plug contacts. Confirm that the mating female plug is fully de-energized and dry before seating the cap. Do not force the cap onto damaged or deformed plug housings.