SS-97028N page 2of 4

MOUNTING DIMENSIONS

The SS300 Series models can be mounted to a flat surface within

the panel using two #8 screws. Mounting screws are not supplied.

TYPICAL WIRING INSTALLATION

CAUTION: BEFORE PERFORMING THE WIRING OPERATION TURN THE POWER SOURCEOFF AND STOP YOUR ENGINE. CAUTION: THE SS300 SERIES MODELS ARE INTENDED FOR INSTALLATION WITHIN A WEATHER-PROOF ENCLOSURE.
Battery
Magnetic Pickup
+--
Ignition
Switch
SS300
4 INPUT
3
2
1
5 – BATT.
6 + BATT.
7
8
SPEED
GND. FOR
T/D
POS. TO
LATCH
Battery
Ignition
Switch
FuelSolenoidSpeedSignal
+--
SS300
4 INPUT
3
2
1
5 – BATT.
6 + BATT.
7
8
SPEED
GND. FOR
T/D
POS. TO
LATCH
Battery
Ignition
Switch
Energize to stopSolenoidSpeedSignal
+--
SS300
4 INPUT
3
2
1
5 – BATT.
6 + BATT.
7
8
SPEED
GND. FOR
T/D
POS. TO
LATCH
Battery
To AlternatorTach. Terminal
Ignition
Switch
+--
SS300
4 INPUT
3
2
1
5 – BATT.
6 + BATT.
7
8
SPEED
GND. FOR
T/D
POS. TO
LATCH
Battery
Ignition
Switch
+--
Coil
+--
SS300
4 INPUT
3
2
1
5 – BATT.
6 + BATT.
7
8
SPEED
GND. FOR
T/D
POS. TO
LATCH

Figure 1:

Magnetic Pickup Input

Figure 2:

Alternator Tach., Input

Figure 3:

Distributor Ignition Input

Figure 5:

Energize to Stop Solenoid

CAUTION:
If replacing an SS100 Seriesmodel with an SS300 Series model, note thesignificant wiring differences on the SS300terminals: 5, 6, 7, and 8. Wire your SS300 accordingly.

Figure 4:

Energize to Run Solenoid

Frequency/RPM Input Source

Connect the SS300 Series speed switch to the appropriate frequency/RPM

input source. See Figures 1 thru 3.

Latching Overspeed with Fuel Solenoid

A latching overspeed switch with fuel solenoid application is shown in

Figures 4 and 5. Ignition switch must be turned off to unlatch.

2-1/2 in.
(64 mm)
2 in.
(51 mm)
3/16 in. (5 mm)
dia. two places 2-1/16 in.
(52 mm)
1-1/32 in.
(26 mm)
3 in.
(76 mm)

SS300 Series

(all models)