Graco recently changed the disconnect knobs and switches used on its line of Reactor® Plural-Component Proportioners, due to a vendor discontinuing the original versions. Affected parts include:Electric and Hydraulic Reactors:
117545 Disconnect knob
117564 Switch
117553 Fourth pole switch (used on 400V machines only)
A-20 Reactors:
120572 Disconnect Knob
120571 Switch
120580 Fourth Pole switch
The new and old knobs and switches are not interchangeable; however, new knobs and switches will provide improved shaft strength and better shaft-to-handle mating.
Old and new fourth pole switches are interchangeable.
New Electric and Hydraulic Reactor part numbers:
123967 New disconnect knob
123969 New switch
123968 New fourth pole switch
258920 Kit including new knob and switch (parts 123967 and 123969)
New A-20 Reactor part numbers:
123971 New disconnect knob
123970 New switch
123972 New fourth pole switch
258921 Kit including new knob and switch (parts 123971 and 123970)
If you have any questions, please contact your local distributor for more information.
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