Discontinued ETC Models

etc.11 / D Manuals

The etc.11 trip unit has been replaced by the ETC-12, and we recommend upgrading your kits to ETC-12 at your convenience to take advantage of the numerous enhancements to the newer model. You may find legacy documentation related to the etc.11 here:

• etc.11 Section II-B Manual
• ETC-122D Section II Manual

Time Current Curves

• etc.11 LSI-Curve
• etc.11 / etc-21 / etc-31 Ground Fall Curve for 3000/4000 Amp Frames
• etc.11 / etc-21 / etc-31 Ground Fall Curve for 1600/2000 Amp Frames
• etc.11 / etc-21 / etc-31 Ground Fall Curve for 225, 600 and 800 Amp Frames
• etc.11D / etc-21D / etc-31D Ground Fall Curve