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The FF1 is a variable frequency drive control panel (also known as VFD in a box, VFD enclosure, or motor control panel) that is manufactured by Motor Drives International. Along with its siblings - SV1 & F3R, each are designed for different environments and applications. The FF1 is very popular for a variety of industrial applications including fans and pumps. It has a NEMA 1 type enclosure, and houses VFDs ranging from 5HP to 800HP (for higher horse powers, MDI manufactures Custom Panels that will meet specific needs).
Some of the features of FF1 include: easily changeable air filter, LED lights showing real-time status of the panel, an advanced numeric keypad, remote I/O capability, operator devices, and pad-lockable through door circuit breaker disconnect handle. Optional add-ons include: 3% or 5% line reactors, 12% or 15% harmonic filter system, 3 contactor bypass, and many more.
|NEMA 1||NEMA 1||NEMA 3R|
|Slim 12" wide gray enclosure||Gray enclosure, size varies on horsepower||White outdoor rated enclosures|
|Up to 40 HP||Up to 800 HP||Up to 800 HP|
|Natural air ventilation||Filtered forced air ventilation||Filtered forced air ventilation|
|No filters||Pleated air filters||Washable poly filters|
|Line reactors available||Line reactors & harmonic filters available||Line reactors & harmonic filters available|
|Standard dial keypad||Advanced full numeric keypad||Advanced full numeric keypad|
The FF1 family (Left: 48"x35", Middle: 36"x24", Right: 60"x36")
The inside view of the 36"x24" FF1 with a 15% harmonic filter (optional), 3 contactor bypass and a circuit breaker disconnect
The Inside view of the 60"x36" FF1 with a DC link choke, 3% line reactor, 3 contactor bypass, and a circuit breaker disconnect
Gray: Mitsubishi F700 VFD (standard equipment)
Orange: DC link choke (Comes with Mitsubishi F-series 180+ Amps VFDs)
Circuit breaker disconnect - shuts off the power before you open the panel
Redundant fan to ensure the temperature stays cool
Air filter located outside of the panel - change it without opening panel door or shutting off power
Mitsubishi advance numeric keypad that will make programming much quicker
LED lights to show real-time status of the VFD panel
Padlock-able door handle
The 3 contactor bypass, and part of the 3% line reactor (orange)
Left: An inside view of a 208V FF1. You can see the 3 capacitors - the silver cylinders in the middle.
Right: The rear side of the 60"x36" FF1. The VFD comes out in the back for ventilation purpose in all 60" FF1