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FRENIC-Eco (F1)
Fuji Electric FRENIC-Eco (F1) Variable Frequency Drives
Please note: the FRENIC-Eco (F1) series has been discontinued by Fuji Electric. The units listed here are supplied from remaining stock to keep installed equipment running. For new installations, Fuji Electric's designated current-generation equivalent is the FRENIC-MEGA (G2).
About the series
FRENIC-Eco was Fuji Electric's purpose-built energy-saving drive platform for variable-torque loads, offered on 208/230 VAC and 460 VAC three-phase supplies. It paired an optimized V/f control algorithm tuned for fans and pumps with a built-in PID controller for closed-loop pressure and flow regulation, RS-485 Modbus RTU communication, and a full protective function set. For a generation of HVAC and water-system designers it was the default specification, which is why so many F1 drives are still in service today.
Keeping an F1 installation running
If you are maintaining an existing F1 panel, buying a like-for-like spare is usually the fastest path back to production — no re-parameterizing, no drawing changes, no enclosure rework. Stock on discontinued product moves quickly and is not replenished, so the available quantity shown on each product page is the practical limit.
Planning the replacement
When like-for-like stock runs out, or when you would rather modernize than patch, the FRENIC-MEGA G2 brings expanded connectivity, permanent magnet motor support and built-in Safe Torque Off. Footprint, control terminal layout and parameter numbering all differ from the F1, so ask us for the cross-reference and migration notes before you schedule the changeover.
FRENIC-Eco (F1)
Fuji Electric FRENIC-Eco (F1) Variable Frequency Drives
Please note: the FRENIC-Eco (F1) series has been discontinued by Fuji Electric. The units listed here are supplied from remaining stock to keep installed equipment running. For new installations, Fuji Electric's designated current-generation equivalent is the FRENIC-MEGA (G2).
About the series
FRENIC-Eco was Fuji Electric's purpose-built energy-saving drive platform for variable-torque loads, offered on 208/230 VAC and 460 VAC three-phase supplies. It paired an optimized V/f control algorithm tuned for fans and pumps with a built-in PID controller for closed-loop pressure and flow regulation, RS-485 Modbus RTU communication, and a full protective function set. For a generation of HVAC and water-system designers it was the default specification, which is why so many F1 drives are still in service today.
Keeping an F1 installation running
If you are maintaining an existing F1 panel, buying a like-for-like spare is usually the fastest path back to production — no re-parameterizing, no drawing changes, no enclosure rework. Stock on discontinued product moves quickly and is not replenished, so the available quantity shown on each product page is the practical limit.
Planning the replacement
When like-for-like stock runs out, or when you would rather modernize than patch, the FRENIC-MEGA G2 brings expanded connectivity, permanent magnet motor support and built-in Safe Torque Off. Footprint, control terminal layout and parameter numbering all differ from the F1, so ask us for the cross-reference and migration notes before you schedule the changeover.
