Register | Log In
 


Cart Summary
Your Cart is Empty
View Cart
Search
 
 
Navigation
Catalog
Murphy
Pressure & Vacuum
Temperature
Level
Vibration - Time - Overspeed
Vibration Switches: VS and EVS Series
Timers: Mechanical
Tachometers: Analog & Digital
Hourmeters
OS77D-900NTO Electronic Speed Switch
OS77I-040NTO Electronic Speed Switch
Magnetic Pickups
Magnetic Switches & Tattletale® Annunciators
Engine Panels
Engine & Motor Controls
Compressor Controls
Valves
Electric Gages
Gen Set Controls
PowerView™ & MurphyLink™ Series
SENS
Trombetta
Compliance Controls
Davis Instruments
MurCal's Toolbox


SS300-12 Electronic Speed Switch
SS300(240).jpg The SS300-12 Electronic Speed Switch is a 12 volt single set point speed switch with SPDT relay dry contact output, which uses a magnetic pickup input signal. 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. An optional time delay is on board to delay operation of the relay for 2-6 seconds after the set point has been reached.

This model has several applications: It can be used for overspeed shutdown, which will shut down the engine if RPM exceeds the pre-set limit. It can be used for speed sensitive pull-in/drop-out, which will engage or disengage PTO's, 4-wheel drives or other switch points according to the speed of the engine being monitored. The unit can also 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.

Sales Bulletin
Installation Instructions
Price: $116.50

 
 
Tell a Friend


Related Items
MP3298(80).jpg
MP3298 Magnetic Pickup
The MP3298 Magnetic Pickup
Price: $53.50
 
EL150K1(80).jpg
EL150K1 Liquid Level Swichgage®
The EL150K1 Liquid Level Swichgage® instrument is a combination liquid level gauge and low limit switch. It can be used to monitor lube oil, hydraulic fluid or diesel fuel reservoirs and activate alarms and/or shut-down at a predetermined minimum level.
Price: $80.00
 
20P-100(80).jpg
20P-100: Pressure Swichgage®
The 20P-100 Pressure Swichgage® is a 2" dial, diaphragm-actuated pressure-indicating gage with a built-in electrical limit switch. This dual-scale instrument has a range of 0-100 psi.
Price: $31.75
 
20T-250-4(80).jpg
20T-250-4-1/2: Temperature Swichgage®
The 20T-250-4-1/2 is a 2" Temperature Swichgage® with a steel case, a 4 foot capillary length with standard 1/2-14 NPT threading and a temperature range of 130-250° F.
Price: $44.50
 
ES2P-100(80).jpg
ES2P-100 Pressure Sender
The ES2P-100 is a 2-wire ungrounded pressure sender for use with electric pressure gages. Rated at 100 psi maximum.
Price: $30.00
 
L150(80).jpg
L150 Liquid Level Swichgage®
The L150 is a float operated, field adjustable liquid level swichgage®. A unique combination lube level indicating gage and adjustable low and high limit switch. It provides protection against low oil level or high level caused by overfill or fuel or water seepage into the crankcase.
Price: $66.00
 
20P7-75(80).jpg
20P7-75: Lockout Pressure Swichgage®
The 20P7-75 Pressure Swichgage® is a 2" dial, diaphragm-actuated pressure-indicating gage with a built-in electrical limit switch. This dual-scale instrument features a lockout button and has a range of 0-75 psi.
Price: $37.25
 
ES2T-250:300-1:2(80)
ES2T-250/300-1/2 Temperature Sender
The ES2T-250/300-1/2 is a 2-wire ungrounded temperature sender for use with electric temperature gages. This model has a 1/2-14 NPT thread size.
Price: $24.50
 
A20P-100(80).jpg
A20P-100: 2" Pressure Swichgage® with Polycarbonate Case
The A20P-100 Pressure Swichgage® is a 2" dial, diaphragm-actuated pressure-indicating gage with a built-in electrical limit switch. This dual-scale instrument has a polycarbonate case and lens for complete environmental protection and a range of 0-100 psi.
Price: $57.25