The Tier AF Series Arc Flash Relay System reduces arc flash incident energy and boundaries in both Medium-Voltage and Low-Voltage electrical systems.

The Tier AF series is an externally installed control cabinet that uses both fiber optic sensors and current transformers (CTs) to immediately detect both light and current associated with an arc flash event and quickly activate a system disconnect.

“Real-time” power monitoring and microprocessor control technology to continuously evaluate your electrical system and engage the exact amount of power correction at the precise moment it’s needed. Its sub-cycle response, means the system is fast enough to respond to any load type, including those that are random and dynamic in nature.

Southern Tier Technologies developed a series of surge products designed specifically to protect your motors,  the Tier 460SPD series. The product family is available in a wide range of voltage and surge levels, and with either a Contact Restart or Shunt Trip Controller. Custom specifications can be accommodated.

Southern Tier Technologies developed a series of products designed to protect your most critical locations; the Tier 400SPD series. The product family is available in a wide range of voltage and surge levels, ideally suited for service entrance locations on down to the smallest branch panel.

The Southern Tier Technologies AC and HVAC Demand Limiter is coming soon!

Low-energy transients and high-frequency noise events are responsible for both disruption and long-term degradation of sensitive microprocessor driven equipment. A complete power protection strategy should include installation of a high frequency noise/surge filter at the input of your most critical equipment as well as at the output of known disruptive devices.

Low-energy transients and high-frequency noise events are responsible for both disruption and long-term degradation of sensitive microprocessor driven equipment. A complete power protection strategy should include installation of a high frequency noise/surge filter at the input of your most critical equipment as well as at the output of known disruptive devices.