STI-7521-HTR STI

The STI STI-7521-HTR is a clear, heated NEMA 4X/Type 4X protective polycarbonate cabinet featuring an enclosed deep backbox and an exterior thumb lock. Specifically engineered to safeguard remote annunciators, fire control panels, and other sensitive electronics from severe weather,
vandalism, dust, and grime, the unit contains a multi-voltage radiant heat plate that operates on a 12, 16.5, or 24 VAC/VDC power source. This internal heating system incorporates three distinct thermostats: a control thermostat to maintain the enclosure above freezing, an over-temperature safety cutoff,
and a low-temperature fault warning output that hooks directly into a panel's supervisory circuit. Measuring 10.06" H x 8.09" W x 3.25" D, the UV-stabilized enclosure ships with an included 16.5 VAC, 40VA Class 2 auto-resetting transformer, mounting hardware, and sealing gaskets.