The PyroBox3C Pipe Trace System controls up to 2 Zones, with 2-50A/3P Contactors, 3-Phase 600V Max +1 Zone Aux Controller, 1-30A/2P Contactor, 1-Phase, 300V Max. The unique staggering feature of the PYRO TRACE control keeps pipes from freezing, without the need to upgrade the power supply on site. Use a high demand heating system on a limited power supply by controlling up to 2 different zones. The modular design allows customers to choose the right configuration for the specific property needs. Pipe Trace Controller For Commercial and Residential Use. Up to 2 Zones, with 2-50A Contactors +1 Zone Aux Controller, 1-30A Contactor. Integrated Fault Detector, GFCI non class A. Logical Setting For Installer / Setup & Service. User Friendly Interface – Programming and Adjusting. Enclosure Protection NEMA Type 4. Sequencing option between the zones – Allowing pipe freeze protection area with less available power on site. Energy Efficient Algorithm. Adjustable splitting time between the zones with multi configurations between zones. Adjustable Hold-On-OFF Delay and Manual On. Adjustable Upper and Lower Limit Temperature. Adjust Cycle Time and Setpoints. ETL Certified for USA and Canada.