PLC for extreme environments

The AC-500 XC PLC from ABB is designed to operate in extreme temperatures and has extended immunity against corrosive elements and electric shock.


The AC-500 XC PLC from ABB is designed to operate in extreme temperatures and has extended immunity against corrosive elements and electric shock. Courtesy: ABBABB's AC500-XC PLC is protected against a wide variety of threats including high and low temperatures, high humidity, low air pressure, salt mist and hazardous gases, and vibration and shock. This helps eliminate the need for sophisticated protective enclosures with special seals, HVAC, shock absorbers, EMC protection and other safety features.

The embedded protection features ensure that AC500-XC PLC based control systems stay functional and reliable even when operating in hostile environments. Such conditions can be found in many common automation applications including mines, tunnels, vessels, cranes, water and wastewater plants, offshore platforms, wind turbines, solar trackers and weather and navigation stations.

Embedded environmental protection opens up extensive applications potential for the ABB AC500-XC. Extended temperature operation allows the PLCs to operate in temperatures from -30 to +70 °C. Circuit boards are conformally coated to protect against high humidity levels. The PLC has extended immunity against salt mist and atmospheres with corrosive gases such as H2S, SO2, CL2 and NO2.

High levels of vibration and shock can be tolerated, with accelerations up to 4 g from random vibrations up to 500 Hz, or 2 g  from sinusoidal vibration. The PLC is capable of operating at altitudes up to 4,000 m. It also offers extended EMC protection against voltage surges and fast transients, as well as electrostatic discharge.


- See more Control Engineering controller products.

No comments
Consulting-Specifying Engineer's Product of the Year (POY) contest is the premier award for new products in the HVAC, fire, electrical, and...
Consulting-Specifying Engineer magazine is dedicated to encouraging and recognizing the most talented young individuals...
The MEP Giants program lists the top mechanical, electrical, plumbing, and fire protection engineering firms in the United States.
Salary survey: How much are you worth?; Dedicated outdoor air systems; Energy models and lighting
Fire, life safety in schools; Fire protection codes; Detection, suppression, and notification; 2015 Commissioning Giants; Emergency and standby power in hospitals
HVAC and building envelope: Efficient, effective systems; Designing fire sprinkler systems; Wireless controls in buildings; 2015 Product of the Year winners
Designing positive-energy buildings; Ensuring power quality; Complying with NFPA 110; Minimizing arc flash hazards
Implementing microgrids: Controlling campus power generation; Understanding cogeneration systems; Evaluating UPS system efficiency; Driving data center PUE, efficiency
Optimizing genset sizing; How the Internet of Things affects the data center; Increasing transformer efficiency; Standby vs. emergency power in mission critical facilities
As brand protection manager for Eaton’s Electrical Sector, Tom Grace oversees counterfeit awareness...
Amara Rozgus is chief editor and content manager of Consulting-Specifier Engineer magazine.
IEEE power industry experts bring their combined experience in the electrical power industry...
Michael Heinsdorf, P.E., LEED AP, CDT is an Engineering Specification Writer at ARCOM MasterSpec.