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OS77D-900-NTO Electronic Speed Switch

FW Murphy 20700127 OS77D-900-NTO Electronic Speed Switch

Brand: FW Murphy

Part #:

20700127

Model #:

OS77D-900-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; 1000- 10,000 Hz, magnetic sensor 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
Non-recrank model 10 Hz Differential
Recrank model dropout 54 Hz
Voltage, Magnetic Pickup Signal Models Minimum 1.2 Vrms Maximum 30 Vrms
Maximum Signal Current, Magnetic Pickup Signal Models 0.12 mA
Adjustment Range, Magnetic Pickup Signal Models 1000-10,000 Hz

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