In addition to our standard replacement trip unit kits and retrofit systems, we also manufacture a number of quick-swap trip units, designed for installation in less than 20 minutes, for these popular solid state trip units:
| ETC-12E Series Replaces Westinghouse Amptector 1, Amptector 1A, Amptector 2A |
| ETC-12G Series Replaces GE RMS-9, MicroVersaTrip, MicroVersaTripPlus, MicroVersaTrip PM** |
| ETC-12S Series Replaces Siemens / Allis Static Trip, Static Trip II, Static Trip III, Carriere FB-600E, Joslyn OptriTrip, OptiTrip II, Utility Relay AC-PRO |
| ETC-12Q Series Replaces Square D / Merlin Gerin Masterpact STR-28D, STR-38S, STR-58U |