STI STI-7511F-HTR Heated Polycarbonate Enclosure
Overview
The STI-7511F-HTR is a heated polycarbonate enclosure rated NEMA 4X, designed to protect access control hardware, readers, and strike mechanisms in harsh outdoor, freezing, or dusty environments where standard plastic or metal boxes fail. The radiant heating element maintains the enclosure above freezing—critical when LCD displays, electronic locks, or control boards risk sluggish operation or permanent damage below 32°F. Deploy this where equipment lives in unheated warehouses, outdoor loading docks, refrigerated spaces, or coastal salt-spray zones.
Compatibility
The STI-7511F-HTR accommodates standard access control readers, electronic strikes, and control modules that fit within typical wall-mounted or surface-mounted box envelopes. It pairs with key-operated and push-button lock hardware; specific reader technology (magnetic stripe, proximity, keypad, biometric) compatibility depends on the reader's physical footprint and power draw. The enclosure is designed to work with 12, 16.5, or 24 VAC/VDC power sources, aligning with most commercial access control supply voltages. Consult the specific reader and strike manufacturers' dimensional and electrical specifications to confirm fit before ordering.
Installation Notes
Mounting hardware and weatherproof seals are included. The polycarbonate material tolerates continuous operation between −40°F and 250°F, though the heating element is intended to prevent operation below freezing. The enclosure includes three thermostats: one for heating control, one for overheat safety cutout, and an alarm indicator for fault conditions. Verify that your power supply can deliver the heating element's current draw at your selected voltage (12, 16.5, or 24 VAC/VDC); heating load varies by ambient temperature and desired internal setpoint. No specialized tools are required for standard mounting; use care with polycarbonate fasteners to avoid over-torque cracking.
What's in the Box
- 1x heated polycarbonate enclosure body
- Mounting hardware and weatherproof seals
- Three integrated thermostats (control, safety cutoff, alarm)
