STI EF201610-W2 NEMA 4 Fiberglass Enclosure with A/C and Heat

Overview

The EF201610-W2 is a NEMA 4-rated fiberglass enclosure engineered for outdoor and harsh-environment access control installations where metal cabinets fail due to corrosion or moisture. Non-metallic fiberglass construction eliminates rust entirely—a critical advantage in coastal, industrial, and high-moisture sites. The integrated climate control system (both A/C and heating) maintains safe operating temperatures for readers and electronics year-round, preventing LCD freeze-up in sub-zero conditions and heat damage during peak summer load. The W2 designation indicates a window panel suitable for status displays or reader interfaces. Deploy this where you need sealed environmental protection without the maintenance overhead of traditional metal enclosures.

Compatibility

The EF201610-W2 is designed as a universal outdoor enclosure for access control reader systems, card readers, badge interfaces, and telecommunications equipment. It accommodates modular interior layouts for multiple reader types, power distribution modules, and backup battery systems. Confirm final fitment with your specific reader form factor and electrical load before ordering—fiberglass construction allows custom field drilling if needed, but factory configuration is recommended to preserve NEMA 4 sealing integrity.

Installation Notes

Mounting hardware and weatherproof gaskets are factory-included. The enclosure operates on 12, 16.5, or 24 VAC/VDC for the heating element—confirm your power supply voltage matches before installation. The climate control system includes three thermostats: one for heating control, one for overheat safety cutoff, and one for cooling operation, allowing independent temperature band tuning. Polycarbonate material properties range -40°F to 250°F (-40°C to 121°C), suitable for most North American climates. Three-year manufacturer warranty covers polycarbonate integrity under normal use; one-year coverage applies to electromechanical and electronic components.