191
SWITCHES
ROCKER
LIGHTED SNAP-IN ROUND ROCKER SWITCHES
Current Rating:
6A 250VAC, 10A 125VAC
Initial Contact Resistance:
<50Meg Ohms @12VDC
Insulation Resistance:
>100Meg Ohms
Dielectric Strength (Open Contacts):
>1500V for 1 minute
Contact Material:
Silver Plated Brass
Terminal Material:
Copper Alloy
Body Material:
Nylon (UL 94V-2)
Actuator & Bezel:
Nylon (UL 94V-2)
Terminal Type:
.187” Quick Connect
Lamp Voltage:
AC= 110V neon, DC= LED 2V* @20ma
(*
resistor needed for other voltages
)
Part No.
Type
Action
Lamp / Actuator Color
30-16282
SPST
On-Off
AC Lamp, Red
30-16283
SPST
On-Off
AC Lamp, Amber
30-16285
SPST
On-Off
AC Lamp, Green
30-16222
SPST
On-Off
DC Lamp, Red
30-16223
SPST
On-Off
DC Lamp, Amber
30-16225
SPST
On-Off
DC Lamp, Green
30-16226
SPST
On-Off
DC Lamp, Blue
Panel Cut-out: 20.2mm (.79”)
Maximum Panel thickness 3.0 mm
AC - NEON
DC - LED
Using an LED
An LED (light emitting diode) requires about two volts to operate and twenty milliamps of current. A
current limiting resistor must be used in series with an LED to prevent current over 20 mA from flow-
ing; otherwise, your LED will be damaged. You may simply use Ohm’s law to calculate the resistor
value. Here is an example, We have a circuit operating at 12 volts DC, and need to
know the value of a resistor to use. The LED “wants” two volts to operate ; so subtract
2 from the 12 volts which is of course, ten. Plug the “ten” in at “E” and divide by “I” or
.020 amps. The result is 500 ohms for the resistor value
If you forget to subtract the two volts, the resistor value will be 600 and the LED will
not be at maximum brightness. However, it will last much longer! (about double normal life).
Another formula you can use is R=50(V-2). The R is for resistor, the V for voltage. We like this one
as it is easy to recall and do in your head.
LED wth DC
(Direct Current)
When using an LED with AC, a diode must be placed in
series with the LED. Because AC will only be flowing 1/2
the time, we use a variation on the easy formula shown to
the left(bottom). Use R=25(V-2.7), which includes the volt-
age drop across the diode.
So, if you have a circuit using 28 volts AC, multiply 25.3
(or 28V -2.7), times 25 equals 632 ohms. We need to use
a standard value resistor, so use 680 ohms for “R”.
LED wth AC
(Alternating Current)
DC Volts
5V
6V
12V
24V
Resistor (ohms)
150
180
470
1200
AC Volts
6V
12V
24V
48V 117V
Resistor (ohms)
82
220
560
1200 3K
Typical voltages used in electronics and resistor values (rounded to nearest standard resistor).
Switch Covers
No. 30-1450
-
fits SP Rocker switches
up to 15mm (.59”) X 21mm (.82”)
No. 30-1455
- f
its DP Rocker switches
up to 24mm (.94”) X 21mm (.82”)
No. 30-1600
-
fits Round Rocker
switches up to 23mm (.90”) dia.
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