COLE HERSEE part description

Cole Hersee intermittent and continous solenoids provide safe, dependable control of electrical systems on all type of DC low voltage vehicles. In addition, they are ideal for marine applications and for forward and reverse systems in golf carts, garden tractors, fork lift trucks and winch operation.
Solenoids are relays which are commonly used to remotely switch a heavier current. By using a solenoid, the amount of heavy wiring needed to power the load is reduced, since the control circuit mounted inside the cab typically utilizes a smaller wire gauge.
Housing are available in plated steel, phenolic or plasticized steel. A latching solenoid can act as a remote disconnect switch.


All products listed in this section can be found in Section H of the Cole Hersee D-275 CATALOG.
  • 85A at 12V DC
  • Prevents loadThe device that uses the power supplied from an electrical source. It can be a motor, lamp, horn or other device.
  • s on auxiliary batteryA collection of voltaic cells grouped together to provide higher voltage and/or higher current than a single cell. The battery is a common DC power source, especially for vehicles or equipment that is used remote from the domestic power supply.
  • Emergency vehicles and utility vehicles often have dual battery systems because of added power demand. Such systems necessitate the use of a Battery Selector Switch or a Low Voltage Disconnect Switch. from draining the starting battery.
  • Smart Isolators are more flexible than traditional battery isolatorA solid state device that allows for the alternator to charge multiple batteries, and to control drain from one battery to the other. See 'Battery Isolators' and 'Smart Battery Isolator' #48530.s:
  • It works with all types of alternator.
  • Smaller and lighter than traditional isolators.
  • There are no efficiency losses due to diodes.
  • It allows bi-directional charging from the alternator or from shore powerAC or DC power supplied in a marina to a boat, or by extension to a truck at a truck stop. Shore power is highly desirable to mitigate truck idling..
  • It reduces the load on the charging system by not connecting the auxiliary battery until the primary battery is charged to 13.2V. This extends the life of expensive charging components.
  • Simple to install – connect to starting battery, auxiliary battery and ground. Optional start assist: momentaryWe sometimes call it a "Mom". A momentary switch is spring-loaded - press the actuator and it moves; remove your finger and it returns to its original position. The oppsite type is a maintained contact switch. You move the actuator, and it stays put until you move it again. We have 'Moms' in all kinds - Push-pull, pushbutton, rotary, toggle and rocker, for example. Some simple switches are TOGGled - you press to On, press again to Off. switch allows the auxiliary battery to assist the starting battery. LED status indicator.
  • Ingress protected to IP65
  • LED status indicator.
  • Optional start Assist - add momentary switch.
  • Quiescent currentThe movement of electrons through a conductor. Measured in amperes (A).
  • 5mA typical, 8mA maximum.
  • Offsite info on Marine Power Generation
Property Value
Disconnect voltage 12.7V after one minute at this level.

Cole Hersee® is highly valued in the heavy duty truck industry. It is a leading manufacturer of heavy-duty battery master switches that are widely used as OE equipment by leading heavy-duty vehicle manufacturers. These switches are essential safety components for trucks as they help prevent theft, tampering, electrical fires, and battery drain. Founded in 1924, Cole Hersee is committed to improving vehicle safety by partnering with ECCO Safety Group Australia (ESGA) to establish and implement safety standards for trucks that drive onto mining sites. Its products are also manufactured in its ISO 9001:2008-certified facility and undergo strict testing to ensure safety and reliability.

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