STI EF161408-W3 Fiberglass NEMA 3R Filter Fan Enclosure Window
Overview
The STI EF161408-W3 is a polycarbonate window assembly for EnviroArmour fiberglass enclosures rated NEMA 3R with integrated filter fan ventilation. Designed to mount on seven-door access control enclosures, this window delivers environmental protection (dust, dirt, moisture, UV exposure) while maintaining visibility and airflow control through a 44dB(A) filter fan. Use this when your control panel or annunciator needs protected outdoor or semi-protected indoor mounting—the fiberglass body and clear polycarbonate window resist vandalism, corrosion, and UV degradation without sacrificing view into the cabinet.
Compatibility
The EF161408-W3 fits STI EnviroArmour fiberglass enclosures with 07-door (seven-door) capacity configured for filter fan ventilation. This is a replacement or upgrade window assembly compatible with existing fiberglass bodies in the EnviroArmour EF-series lineup. Verify your current enclosure accepts window-based filter fan configurations before ordering.
Installation Notes
The window mounts to the enclosure via draw-down latch and lockable hinge mechanism—no special tools required beyond standard installation hardware. The filter fan operates independently once mounted; the clear polycarbonate window pane can be removed for service access without disturbing the fan assembly. NEMA 3R rating means this configuration handles rain, sleet, and dust-driven spray but is not submersible or pressure-washable. Ensure drainage holes on the enclosure base remain clear. The 44dB(A) output is typical for filter fan units—acceptable in most electrical rooms but noticeable in quiet office environments.
