Emerson Control Techniques Focus 3N User Manual page 23

F ocus 3 O ption Kits
AC Input
120 Vac
240 Vac
Focus 3 Dynamic Braking Kit
PN– See Table Below
For use with Focus 3 Contactor Kits. Dynam
braking provides rapid motor stopping by quick
dissipating the stored energy in the rotating motor
and load. These resistors have been sized in
accordance with Nema specifications for dynamic
braking.
"Providing 3 stops in rapid succession with the
load inertia equal to the motor inertia, then
cooling forever."
Note: Large and small dynamic braking resistors
shown, ¼-2 HP use small and the 3-5 HP use the
large resistor.
HP (Typical)
1/4-1/3
1/2
3/4-1
1/2
3/4-1
1.5
2
3
5
Focus 3 Toggle Switch – P/N F3TS
This kit can be mounted in the drive enclosure cover
or remote mounted when used with chassis drives.
The kit includes the switch, NEMA 4/12 switch boot
and the connection wires for enclosure use. It is
used to provide one of the following functions:
Fwd/Rev, Run/Jog, or Auto/Manual. Up to 3 of
these kits may be used with the Drive cover.
Part Number
F3DB1524
F3DB224
F3DB112
F3DB0524
F3DB224
F3DB1524
F3DB224
F3DB324
F3DB524
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