UV-C Nema 4X

Air Purification of the Highest Standard

ASHRAE, Science, GSA and the CDC have well established research and applications that prove UV-C’s ability to disinfect and degrade organic material. UV-C is one of the most recognized maintenance and energy tools in the industry because of its ability to disinfect air streams, but also because the UV helps to keep coils, drain pans and other internal mechanisms free from microbes, organic dirt and grime. By keeping the equipment free from odor producing materials that can restrict air flow and cooling capacity, the UV-C can increase occupant productivity.

Exceptional Performance and Affordability

The X-plus combines simplicity and high performance in one, affordably priced, single-lamp device that can be installed almost anywhere. There are also some key safety features such as:

  • Lockable entry/switch (power off) system, allowing it to be used in areas where there may be unauthorized access, such as schools, universities, military sites, and others
  • 2 power interlocks to prevent exposure and electrical shock.

Other benefits include:

  • Patent-pending, feature-packed design
  • NEMA 4X construction for use anywhere in lamp lengths from 17 inches to61 inches
  • UL/CUL Listed per ABQK
  • No need to open or get into HVAC equipment
  • Lockable access prevents unauthorized service
  • Complete safety two-step power-down features
  • LampClamp technology for easy re-lamping — no tools
  • Typical install provides 360-degree UV-C distribution
  • Lightweight, reinforced, high-performance construction
  • Minimal solar gain to maximize component/fixture life
  • Easy wiring to power and additional fixtures
  • Lowest ownership cost of any NEMA 4X UV-C unit
  • 3-year fixture, 1-year lamp warranties
Clarke & Rush

UV-C for Surface Irradiation

UV-C surface irradiation system benefits include maintaining indoor air quality and comfort levels without wasting a lot of energy. UV-C can maintain “new product” conditions from the start, and with retrofit applications the UV-C removes organic accumulation on coil surfaces on both the outer and inner surfaces. Likewise, it decontaminates drain pans, as well as other interior surfaces. Soon after the UV-C application, surfaces stay clean to maintain original specification conditions afterwards, so long as the lights are being maintained.


Learn more about UV-C and UV Resources by visiting: UV Resources

uv light purification



X-Plus type, single-ended UV-C lamp fixtures and are factory assembled and tested. They consist of a NEMA 4X housing, rubber gasket, locking eyelets, auto-matching power supply with integral power interlock and power disconnect, LampClampTM lamp holder, and lamp socket, and are constructed for outdoor environments.


NEMA 4X rated, and constructed of high-performance polycarbonate for a lightweight, low solar gain, structural system. It incorporates padlock eyelets and all other components into one integral assembly that simplifies installation, serviceability, and safety. The housing is designed to be mounted and serviced from the outside of a unit or ductwork, so that the lamp protrudes into “conditioned” air. The lamp is held in place and supported in the airstream by a patent-pending compression collar and compression nut (LampClampTM) and circular lamp support.


Rubber-based cylindrical types sufficient to provide an airtight seal between the mounting surface and fixture housing.

Power supply

Auto-matching, multi-volt input (120-277 Vac ± 10%), Class 2 type with a high-power factor and a sound rating of A. Safety features include a micro-interlock switch, service power disconnect, and LampClampTM. Its design maximizes lamp output in lamps from 17 to 61″ long, in operating conditions from 1–77° C, 100% RH, and at any velocity over the lamp’s life. It features RF and EMI suppression and end-of-lamp-life protection.


High-output, hot cathode, T5, Circline®‚ cell-base types that produce broadband UV-C between 250–260 nm. Each lamp is capable of producing the specified output at any velocity or temperature of 1–77®C. Lamps are standard, non-ozone producing, low residue types, with EncapsuLampTM technology optional.


Circline® 4-pin types encased by the LampClampTM and are constructed of a UV-C-resistant polycarbonate for long life, total reliability of contact, superior support, and serviceability.