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OS771-040-NTO Electronic Speed Switch

FW Murphy 20700124 OS771-040-NTO Electronic Speed Switch

Brand: FW Murphy

Part #:

20700124

Model #:

OS771-040-NTO

Condition:

Brand New

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Description

The OS77D Series single set point speed switch is a compact all-electronic speed sensing module. It can be panel mounted via its trip set point potentiometer.

Normally Open; 40-400 Hz, distributor ignition input

Application:

Overspeed shutdown. Activates engine shut-down circuit on engine overspeed. Operate PTOs or drive circuits. Engage or disengage engine PTO, four-wheel drives or other control circuits according to RPM monitored. Disconnect engine cranking when engine starts.

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Technical details

Main features

Power Supply Voltage 7-28 VDC
Output Transistor Sink to Ground Resistive Load 2 A, 28 VDC
Maximum Current 100 mA
Temperature Range -13° to 185°F (-25° to 85°C)
Adjustment 270°–turn potentiometer
Voltage, Distributor Ignition Models Minimum 6 Vrms Maximum 30 Vrms
Maximum Signal Current, Distributor Ignition Models 0.12 mA
Adjustment Range, Distributor Ignition Models 40-400 Hz
Non-recrank model 10 Hz Differential
Recrank model Dropout 2.4 Hz

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