Add increased functionality, convenience and energy efficiency to your Infratech heating system with a custom control package. This 4 zone relay control panel is for use in conjunction with an analog remote control. In addition to conserving energy, using Infratech controls reduces long term heating and maintenance costs. All main relay panels are project specific and include a NEMA 4/12 enclosure with custom aluminum heat sink, terminal block, UL 489 breakers, and pre-assembled. Control panels are UL 508 listed. Works in conjunction with analog control assembly. Features 4 Relay Main Control Box. 9,000 watt maximum per relay on 240 volt. 8,000 watt maximum per relay on 208 volt. UL Listed. Works in conjunction with remote analog control. Made in the USA. 2 Year Warranty. Specifications Overall Dimensions 14 W x 7 D x 16 H . Interior measurements 16 h x 12 w x 6 d.