Circuit Breaker Retrofit Modernization for Low Voltage Circuit Breakers

We have been installing and testing AC-Pro retrofit kits since the beginning in 1995! We are industry experienced experts, with thousands of trip unit retrofit kits sold, installed, and tested either in our facility or on the jobsite! We provide AC-Pro-II, AC-Pro-MP, AC-Pro-NW, GE Entelliguard, Eaton Digitrip retrofit kits and replacement trip units.

Being directly involved with the design and implementation of the Utility Relay Co. AC-PRO-MP for replacing failing Masterpact STR trip units and other custom trip unit retrofit kits. We will provide the best in class low voltage circuit breaker modernization service.

Enter a new era of advanced system protection:

AC-PRO-II

Features:

• Long-Time, Short-Time, Instantaneous, and Ground Fault (LSIG)
• Scheduled Service Reminder
• Sluggish Breaker® Detection
• USB Communications
• RS485 Modbus RTU Comm up to 115.2 Kbaud
• QUICK-TRIP® Arc Flash Reduction
• Trip History & Waveform Capture
• Current Unbalance Protection
• Zone Block Output Signal
• LSI Protection for Neutral
• Over/Under-Voltage Alarm/Trip*
• Power Demand Metering*
• Reverse Power Protection*
• Phase Loss Protection*

*Requires VDM Option

If your low voltage circuit breaker is in need of repair, refurbishing or remanufacturing click here.