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207
F-3 Floor Switch
Patented January 1, 1924 the design of these
switches is so simple, yet so dependable that
they function today the same as they did in 1924.
Commonly referred to as "Dump Switches,"
these are really Directional Determining
Switches for Single Automatic Operation.
An F-3 is mounted in the hatchway at each
intermediate floor. The switch is mechanical and
spring loaded, operating off of a stationary cam
on the car. When the cam is on both of the
rollers it forces the contacts open. As the cam
leaves the switch the first roller off of the cam is
released, closing its contact thus determining the
direction of travel. This contact remains closed
until the cam returns to the switch causing it to
force both contacts open again.
These are cast aluminum enclosures with sturdy
cast brass contact levers and contacts designed to
work at up to 250 volts AC or DC. The rollers
are mounted on brackets adjustable in
increments of 3/16". The stationary carbon and
copper contacts are heavy duty, long lived, and
reversible.
MODELS AVAILABLE
HEAVY DUTY - STANDARD
66350
F-3: Floor Switch
HAZARDOUS LOCATION
66350HS
F-3: Floor Switch
(Class 1, Division 2)
Ordering Information
Limit Switch Mounting Bracket
If you're going to use our limit switches, make
sure that you order our adjustable limit switch
mounting brackets. Don't waste a mechanic's
precious time in the field trying to manufacturer
mounting when these heavy duty adjustable
brackets are in stock and ready to ship.
Two different mounting options provide a great
deal of flexibility when installing and matching
up to an existing car riding cam.
MODELS AVAILABLE
338-181 Limit
Switch
Adjustable
Mounting Bracket
24" - 30" Long
ACCESSORIES
338-183
Stationary Cam:
1 Foot Long
Item: 338-181
Switch Mounting Bracket
Item: 338-183
1 Foot Long Stationary Cam
Both Rail Clips and Switch Bracket are 100% Adjustable
Horizontal and Vertical
Both Rail Clips and Switch Bracket are 100%
Adjustable Horizontal and Vertical