PowerHalt PH+ Electronic Air Shutoff System for Diesel Pickup Trucks

The PowerHalt PH+ combines intelligent electronic control with a non-invasive installation approach, giving diesel truck operators a dependable emergency shutdown solution that works with the drivetrain they already have.

• Utilises the Factory Electronic Throttle Body — No Separate Valve Required: Unlike conventional air shutoff valves that require cutting into the intake hose, the PH+ integrates directly with the truck's existing electronic throttle unit. This approach simplifies installation, preserves intake geometry, and eliminates the need to source a separate butterfly valve for the engine.
• Automatic Overspeed Shutdown via Crankshaft Speed Signal: The PH+ controller continuously reads the engine's crankshaft position signal. If engine RPM climbs beyond the factory-configured trip speed, the controller immediately commands the electronic throttle to close, halting combustion before damage or injury can occur. Multiple trip speed settings are selectable at setup.
• Manual Override with In-Cab Toggle Switch: Alongside automatic operation, the system includes an in-cab momentary toggle switch that allows the operator to trigger an immediate emergency shutdown at any time. This manual override is essential for situations where the driver needs to stop the engine quickly regardless of RPM.
• Secondary Trip Speed for PTO Protection and Anti-Theft: A dedicated Secondary Trip Speed input lets users program a lower shutdown RPM for two specific scenarios. When powering auxiliary PTO equipment, this secondary speed protects driven implements from engine overspeed. When enabled as an anti-theft measure, the engine cannot be revved beyond idle, deterring unauthorised use of the vehicle.
• IP67 and IP69K Sealed Controller: The C20640 controller carries dual ingress protection ratings — IP67 for sustained water immersion and IP69K for resistance to high-pressure, high-temperature washdowns. This makes the system suitable for trucks operating in harsh environments including construction sites, farms, and industrial worksites.
• Illuminated Switch Provides Real-Time Status Feedback: When the throttle is held closed after a shutdown event, the supplied switch illuminates to confirm system activation. The light extinguishes automatically once the shutdown signal is removed and the throttle returns to its open position, giving the operator clear, unambiguous system status at all times.
• Low Quiescent Current with Smart Power Management: At idle, the controller draws only 17.5 mA at 12 VDC, placing minimal load on the truck's electrical system during normal driving. The system remains continuously vigilant without draining the battery, making it appropriate for vehicles that may sit parked for extended periods.
• Vehicle-Specific Plug-and-Play Wiring Kits: Every PH+ kit ships with a Common Wiring Harness and a vehicle-specific Speed Signal and Valve Control Harness pre-terminated with OEM-matched connectors. This eliminates the need for splicing or custom wiring and allows most installations to be completed in under 60 minutes with basic hand tools. The system is equally straightforward to uninstall, making it well-suited for leased trucks.