Emerson is offering a low-cost upgrade for electrical heat tracing systems with its Nelson AXPC100-CM-GP and CM-GP microprocessor-based digital controllers that are engineered to accurately control, monitor and maintain the process temperatures of industrial pipes or tanks in ordinary (non-hazardous) locations. Ideal for replacing aging electro-mechanical thermostats, the controllers achieve cost savings by eliminating the need for several components with a design that integrates sensor monitoring, ground fault leakage detection, and remote alarm contacts into a single enclosure.
By installing the controllers, the end-user brings their heating circuit up to the current requirements for ground fault equipment protection outlined in the National Electrical Code and Canadian Electrical Code. As a standard feature, Nelson AXPC100- CM-GP and CM-GP controllers are programmed to trip when leakage current exceeds the specified maximum allowable amount.
Rugged and reliable, these environmentally-hardened controllers are housed in a NEMA 4X fiberglass reinforced, UV resistant polymer enclosure resistant to rain, snow, hose-directed water and windblown dust. Dual-pole heater switching adds to system versatility, making the controllers suitable for heater voltages from 120vac to 277vac. Broad temperature capability of 0° C to 218° C (32° F to 425° F) increases the range of process operations where they can be installed to deliver outstanding performance, safety and energy efficiency.
For more information, visit www.emerson.com/en-us/automation/nelson