Compact Explosion Proof Unit Heater - Maltec-H ATEX/IECEx

Compact explosion-proof unit heater is designed with both size and economy in mind. Compact advantages and unique features include:

Compact Size: This small design is only 13 inches wide, which makes it ideal for applications where limited space is available.
Low Cost: The COMPACT design offers the most economical solution for heating small Class I, Group D hazardous areas. It is a cost effective alternative to the use of explosion-proof convection heaters.
Redundant Over Temperature Protection: Primary and secondary automatic reset thermal cutouts for additional safety.
Stainless Steel Construction: Provides superior corrosion resistant protection. Optional Dirty Duty construction adds polyester powder coating to all aluminum parts for use in corrosive applications.
Optional Marine Duty Construction: The COMPACT design is ideal for shipboard use where size, weight and corrosion resistant construction are critical.

Heating Elements
Industrial grade, Type 304 stainless steel finned tubular heating elements.
Terminal Enclosure
A NEMA 7, 9 cast aluminum enclosure with a threaded bottom cover permits easy access to the built-in controls from underneath the heater.
Housing
Round, 16-gauge stainless steel shroud.
Grilles
An adjustable stainless steel louvered outlet grille directs airflow 45° up or down and a heavy gauge stainless steel rear grille protects against accidental contact with the fan blade.
Stainless Steel Swivel Mounting Bracket
Supplied as standard with all COMPACT explosion-proof unit heaters. This multi-purpose bracket can be used for either wall or ceiling mounting.
Built-In Controls
Include primary and secondary automatic reset overtemperature cutouts, controlling contactor, and a time delay relay which keeps the fan running to cool the heating elements after they have been de-energized.
Fan Motor Assembly
Consists of a 120-volt, 1-phase 60 hertz motor fitted with an aluminum fan blade. The totally enclosed motor is UL Listed for Class I, Group D applications and includes permanently lubricated ball bearings and built-in thermal overload protection. The motor is factory wired into the enclosure to reduce field wiring, but requires a separate 120-volt power supply.

Dirty Duty Corrosion Resistant Construction
Includes polyester powder coated fan blade, wiring conduit and fittings, NEMA 4X, 7, 9 enclosure.
Marine Duty Construction
Dirty Duty Construction with manual reset thermal cutout. Meets U.S. Coast Guard requirements per 46CFR-111.87 and is ABS Approved
Manual Reset Cutout
Can be specified to replace secondary automatic cutout.
Adjustable Thermostat
Factory installed and prewired to the control enclosure. Thermostat is adjustable from 50° to 90°F (10° to 32°C) range.

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