The latest XR Battery Isolator also features a 0.5 sec time delay between transmitting the engine stop signal and disconnecting the battery allowing ECUs time to perform a shutdown sequence before electrical power is lost.īattery negative switching current: 600A, 2000A Surge The ECU or PDM will then shut down when it acknowledges this signal - which then stops the engine. The XR Battery Isolator disconnects the negative side of the battery from chassis, as described above, andstops the engine by outputting an ‘engine stop’ signal which is recognised by most programmable motorsport ECUs and Power Distribution Modules. XR BATTERY ISOLATOR (Aftermarket ECU/PDM/StandAlone Units) The GT Battery Isolator is designed for cars with no ECU or standard OE ECU. When the Battery Isolator is switched off and the negative side of the battery has been disconnected it will also cut the 12v output powering your Ignition or ECU thereby stopping the engine. The GT Battery Isolator disconnects the negative side of the battery from chassis, as described above, andstops the engine by providing a switched 12v power output which can be used as the main power input to the Ignition or ECU. GT BATTERY ISOLATOR (Factory ECU‘S / PDM‘s) To stop the Engine there are two options of Battery Isolator: This means that if the Fire Extinguisher system has been activated the Battery Isolator will simultaneously stop the engine and disconnect the battery. These Battery Isolators will instantly trigger into isolation mode when any of the kill buttons are struck or on detection of any fault or break in the switch wiring circuits for added safety.Ĭartek also manufacture a unique Fire Extinguisher button which ca also be connected to the Battery Isolator Circuit. This safety feature means amarshal will always have quick access to a kill button even if the car is on its side or upside down. This was implemented by Ford forthe Formula Ford Ecoboost cars which were fitted with an external kill button on each side. This further increases their strength and reliability.Īs Cartek Battery Isolators use normally-closed, push-to-break, external kill buttons it allows multiple external buttons to be connected in series. Our Solid-State Battery Isolators are also filled with a hard setting resin which keeps them fully sealed against dust, dirt and water while also making them resistant to shock and vibration. Both types of systems contain mechanical electrical contacts which, due to the combination of high electrical current and the shocks and vibration of the race car environment, sparking between the contacts occurs which results in contact erosion and eventual unreliability. Solid-State means no moving parts, all power switching is fully electronic.Įarly types of battery isolation utilised large mechanical master-switches while more modern systems have utilised electro-mechanical solenoids. These microprocessors also monitor the kill switches/buttons for instant activation without false triggering. The two electronic isolation circuits are controlled by microprocessors and incorporate various safety systems including over-temperature and over-current monitoring. This means that power is removed from all electrical circuits as they all obtain their negative power connection via the chassis.īoth the GTBattery Isolator and the XRBattery Isolator incorporate alternator run down protection which means no extra components are required. When the external kill button has been activated, or the internal button been switched to the off state, then the Battery Isolator will disconnect the negative side of the battery from the chassis. The Battery Isolators work by being connected in between the negative side of the battery and the chassis (see picture opposite). The first is to disconnect the Battery from all Electrical Circuits. Our Cartek Battery Isolators provide two functions. Designed and manufactured in UK using the latest and best qualitycomponents available. Very small and weight is only 70g - 100g. Mounts close to battery for reduced cabling. Buttons / switches connected to Isolatorusing light weight wiring. External operation by single or multiple ‘strike‘ button(s). Driver operation by a single internal ON-OFF button/switch. Fully integrated with built in alternator run-down circuitry Completely resistant to shock and vibration. They have been designed to overcome all the problems and restrictions associated with mechanical and electro/mechanical master-switches to maximise reliability, enhance safety, save weight and simplify installation. Cartek Motorsport Electronics - Battery Isolator GT & Electronic Kill SwitchĬARTEK electronic Battery Isolatorsare a very small and highly reliable alternative to the traditional mechanical master-switch.
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