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Foot switches can be used to turn electrical
equipment on and off with the foot, freeing the hands to perform other
operations or providing ergonomic improvement to a workstation. Foot switch
applications often require different sizes and shapes, electrical ratings, pedal
actions, cables, labels, and other variations. Contact
us today with your requirements.
Only the user can be aware of
all conditions and factors present during installation, operation, and
maintenance of a foot switch and surrounding work area. Therefore, only
the user can determine which foot switches and which point-of-operation
safeguards can properly be used in a particular application or work
station. Read the foot switch safety
warning and review OSHA and other regulations before selecting
or installing any foot switch.
Model Overview
Also see:
Potentiometer Foot Controls or
TIG Welding Foot Controls
Foot Switch Pedal Action
There are three main types of pedal action: momentary,
maintained, and anti-trip.
1) Momentary Action - Press and hold to turn on,
release to turn off (like a car horn). The user must continue to hold the pedal down
to keep it on. As soon as the user lifts his or
her foot, the unit will turn off.
2) Maintained Action - Press once to turn on, press
again to turn off (like a light switch). The unit will stay on until the user
presses forward a latch inside the hood on the
G-Series or presses the other end of the pedal on the
S420-Series
to release it back to the "off" position.
3) Anti-Trip Safety Feature (G-Series only) - The user must press forward a safety
latch inside the hood before pressing down on the lever to turn it
on. These units then have a momentary action; the user must keep the pedal pressed down
in order to keep it
on.
Electrical Contacts
Typically, foot switches contain SPDT contacts (see below)
that are
wired "normally open." That is, the switch is open, or
"off," when not pressed down. Additional notes:
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S-Series foot switches and
E-Series foot switches are shipped
with cables attached and have SPDT contacts that are wired
normally open. Click on the following link to view a wiring
diagram of the S-Series foot switch:
Wiring Diagram (Adobe
PDF).
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G-Series foot switches have either
SPDT contacts or DPDT contacts (see below). They are not typically
shipped with cables, but can be upon request.
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You can adjust
the switch activation point for all G-Series models with more than one
switch (G502, G503, G504). They can be adjusted to activate at the
same time, or at different times as the pedal is pressed down.
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You can order
any G-Series foot switch with double-break contacts instead of SPDT contacts. Double-break contacts provide a better
connection in some circuits and are able to handle greater inrush
currents, because there are two places that make contact in each line,
as compared to one place with standard contacts (see below). Add
"-DB" to the end of any G-Series model number for
double-break switches.
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Other options
are available; contact us with your requirements.
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Circuit Type |
Diagram |
Image (shows interior of G-Series Foot Switches)
Note: All switches with three terminals can be wired either normally
open or normally closed. |
| SPDT (single-pole
double-throw)
Example: G500-MO |
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| DPDT
(double-pole double-throw)
Example: G502-MO |
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| TPDT (triple-pole
double-throw)
Example: G503-MO |
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.jpg) |
| Dual DPDT (two DPDT
switches in each unit)
Example: G504-MO Ideal for controlling up to four independent
circuits. |
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.bmp) |
| SPDT-DB (single-pole
double-throw double-break)
Example:
G500-MO-DB |
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Amperage Rating
The amount of electrical current that will flow through
the circuit will determine the amperage rating required for the foot
switch. The amperage rating is important so the switch and wiring
can handle the current that will flow through the circuit.
Consult a
certified
electrician to determine amperage,
voltage, or other
requirements for your application. Follow all local and
national electrical safety regulations.
G-Series Foot Switches - Features and Variations
G-Series foot
switches include either one or two SPDT
switches. G500 models have one switch, and G502 models have two
switches.
The switch activation points are adjustable for G-Series
foot switches. To increase pedal travel before the switch is
activated, turn the Adjustment Screw clockwise. To decrease travel before
the switch is activated, turn the Adjustment Screw counter-clockwise.
For models with two switches (G502 models), both switches can be
independently adjusted. If both switches are set to go off at the
same time, the unit will have DPDT circuitry. The switches can also
be set so one goes off before the other.
Two-stage models
(models ending in "-2S") have an
additional spring mechanism that provides a distinct tactile feel between
the activation of each switch.
The user will feel an additional force after activating the first switch when pressing the pedal
down halfway; the user can then either hold at that position or continue pressing the
pedal down to activate the second switch.
Additional References and Safety Warnings
Cable and Connectors
Foot switches can be shipped with a variety of cable
options (see examples below). If you don't see the cable or connector that you require, please call
us at 1-440-205-1600 or email your specifications.
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Cable with terminated
leads. Cables can be terminated to your specifications.
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- Cable with RJ-45 modular connectors - For telecom and computer
applications.
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Customization
We can add decals, cables, connectors, labels, and many
other features to meet your requirements. Please contact us at 1-440-205-1600 or email your specifications.
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Contact us today by phone at 1-440-205-1600, email
at mail@ssccontrols.com,
or using the form below.
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The SSC Controls
Company
8658 Tyler Boulevard
Mentor, Ohio 44060
USA
Telephone:
1-440-205-1600
Facsimile:
1-440-205-1700
mail@ssccontrols.com
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