STI EP242410-T3 Polycarbonate NEMA 3R Filter Fan Enclosure

Overview

The EP242410-T3 is a non-metallic polycarbonate enclosure with integrated NEMA 3R filter fan designed to house access control panels, fire alarm annunciators, and remote electronics in outdoor or semi-protected environments. The tinted hinged door and lockable latch guard against accidental or intentional vandalism while allowing authorized field service access. Built-in filter fan with 44dB(A) output manages thermal buildup in sealed cabinet installations without requiring separate HVAC integration—a practical choice for weathered utility closets, exterior equipment cabinets, and unmanned remote sites where dust ingress and temperature swing risk component failure.

Compatibility

The EP242410-T3 accommodates seven-door access control systems and fits standard mounting rail configurations used in commercial security installations. Brass threaded inserts in the inner panel support direct mounting of control boards, terminal blocks, and power distribution modules. The enclosure is sized to integrate with typical alarm panel geometries and remote annunciator layouts; confirm your control panel footprint against available internal cavity before ordering. The removable, draw-down latch design permits panel swap-outs and firmware updates without full enclosure removal.

Installation Notes

Mount on a flat vertical surface with drain path toward grade to prevent water pooling at the base seal. The UV-resistant polycarbonate withstands direct sun exposure without yellowing or embrittlement over the three-year warranty period on the housing. The filter fan draws ambient air through a replaceable intake filter, so position the unit with at least 12 inches of clearance around the rear vent to avoid recirculation of warm exhaust air. Tinted door reduces solar heat load compared to opaque variants but may require interior task lighting for daytime field diagnostics. The 44dB(A) fan noise is audible at close range—confirm acceptable for your installation site.