FW Murphy 20700166 SS300-12 Electronic Speed Switch, 12 VDC
Condition: 
Brand New
Brand New $237.60 /Each
$315.78 You save $78.18 25%
Manufacturer warranty Description
The SS300 Series are single set point speed switches with SPDT relay dry contact output. The trip point is set by a potentiometer. An LED indicates when the signal source is present. A second LED turns on when the trip point is reached.
Application:
- Overspeed shutdown.
- Shuts down the engine if RPM exceeds the preset limit.
- Speed sensitive pull-in / drop-out.
- Engage or disengage PTOs, four-wheel drives, other switch points, etc. according to the engine speed being monitored.
- Engine and transmission alarms/shutdowns.
- Oil pressure in some engines and transmissions varies widely between running and idle speeds.
- Adjustable differential model.
- The AD can be adjusted to change the speed range over which the pull-in and drop-out differential of the relay will operate. A typical application is to ensure that engine speed is above a minimum RPM before applying a load but allows a drop in speed of several hundred RPM without disconnecting the load.
Technical details
Main features
- Voltage 12 VDC
- Output Relay contact, SPDT, resistive load, 6 A, 30 VDC
- Temperature Range -4° to 185°F (-20° to 85°C)
- Relative Humidity 0 to 95% non-condensing
- Power Requirements 12 VDC
- Case Black, ABS plastic
- Adjustment 20–turn potentiometer(s)
- Time Delay When terminal 7 is grounded, the relay operation is delayed for 2-6 seconds after RPM set point is reached
- Frequency Signal Minimum Input Voltage Signal: 4.5 Vrms Maximum Input Voltage Signal: 50 Vrms
- Reset Differential Magnetic Pickup Signal 2 Hz Differential
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