Technical Downloads ETC-12 Instruction Manuals ETC-12 Instruction Manual ETC-12Q Series Instruction Manual ETC-12E Series Instruction Manual ETC-12S Series Instruction Manual ETC-12G Series Instruction Manual ETC-12 Literature & Brochures ETC-12 Brochure ETC-12Q Series Flyer [For Square D Masterpact Breakers] ETC-12E Series Flyer [For Amptector Trip Units] ETC-12 Trip Curves Ground Fault Time Current Curves Phase Imbalance Time Current Curves LSI Pickup Curves