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SS-97028N page 2 of 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 SOURCE

OFF 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

SPEED

GND. FOR
      T/D
POS. TO
LATCH

Battery

Ignition

Switch

Fuel

Solenoid

Speed

Signal

+

--

SS300

4  INPUT

3

2

1

5  – BATT.

6  + BATT.

7

SPEED

GND. FOR
      T/D
POS. TO
LATCH

Battery

Ignition

Switch

Energize to stop

Solenoid

Speed

Signal

+

--

SS300

4  INPUT

3

2

1

5  – BATT.

6  + BATT.

7

SPEED

GND. FOR
      T/D
POS. TO
LATCH

Battery

To Alternator

Tach. Terminal

Ignition

Switch

+

--

SS300

4  INPUT

3

2

1

5  – BATT.

6  + BATT.

7

SPEED

GND. FOR
      T/D
POS. TO
LATCH

Battery

Ignition

Switch

+

--

Coil

+

--

SS300

4  INPUT

3

2

1

5  – BATT.

6  + BATT.

7

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 Series

model with an SS300 Series model, note the
significant wiring differences on the SS300

terminals: 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)

Содержание Selectronic SS300 Series

Страница 1: ...rm Shutdowns Oil pressure in some engines and transmissions varies widely between running and idle speeds The SS300 Series can select between two pressure switch set points according to speed of the engine or transmission and thus give maximum protection to the equipment while at operating RPM and eliminate nuisance alarms when at idle Adjustable Differential Model The AD can be adjusted to change...

Страница 2: ...ach 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 Series model with an SS300 Series model n...

Страница 3: ...00 AD with Clutch Engager The SS300 AD can be applied with a Murphy CO 3 engager Figure 10 The circuit is designed to engage a clutch after engine speed has increased to a preset RPM Example 1200 RPM and disengage clutch when engine speed has decreased to idle Example 600 RPM The adjustable differential SS300 AD relay is set to pull in at 1200 RPM and drop out at 600 RPM Figure 6 Figure 7 Figure 8...

Страница 4: ... potentiometers SPEED ADJ DE ENERGIZE Figure 13 Figure 14 CONTROL SYSTEMS SERVICES DIVISION P O Box 1819 Rosenberg Texas 77471 USA 1 281 633 4500 fax 1 281 633 4588 e mail sales fwmurphy com MURPHY DE MEXICO S A DE C V Blvd Antonio Rocha Cordero 300 Fracción del Aguaje San Luis Potosí S L P México 78384 52 444 8206264 fax 52 444 8206336 Villahermosa Office 52 993 3162117 e mail ventas murphymex co...

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