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CANstart modules provide automatic or manual start/stop control, panel gauge driving, fault indication and auxiliary shutdown protection for ECU-controlled, CANbus SAE J1939 compatible engines.

These compact controllers can be used with pumps, generators and other engine-driven applications. 

Operator control is through a 4 position key-switch, and the key is removable only in the Stop/Reset (O) position. 

Six LEDs and icons indicate engine/ECU status and faults. Two of these LEDs, with associated inputs, indicate auxiliary fault shutdown and charge alternator fail/excitation.

CANstart is front-of-panel mounted through a standard square cut-out and secured at the rear with quick-fit clips. Epoxy-resin case encapsulation gives superior vibration/shock resistance and environmental protection

  • Power supply
    • Operating voltage, steady state: 8 to 32 VDC
    • Operating voltage, brown out / cranking: 5 VDC minimum
    • Current consumption: < 100mA
  • Inputs
    • All Models:
      • CANbus: SAE J1939 protocol, switchable 120 Ohm terminating resistor
      • Auxiliary shutdown (x2): close to negative DC during fault
    • 9640 series:
      • Auto start & stop (x2): close to/open from positive DC to activate
  • Outputs (all ratings non-reactive)
    • Run (ECU), start (crank): positive DC (protected FET), 6A max @ 32 VDC
    • Alarm: negative DC (open collector transistor), 250mA max @ 32 VDC
    • Oil pressure gauge: suitable for Murphy, VDO 5 or 10 Bar, Datcon 7 or 10 Bar
    • Engine temperature gauge: suitable for Murphy, VDO or Datcon
    • Tachometer: for use with charge alternator driven tachometers
  • Adjustable settings
    • Model 9631 and 9641 (variable speed engines)
      • Overspeed level: 1250 – 2800 RPM (50 RPM increments), or ‘off’ default setting: 1250 RPM
  • Physical
    • Electromagnetic compatibility: 2004/108/EC
    • Case material: polycarbonate / polyester
    • Overall dimensions (w x h x d): 96 x 96x 131mm / 3.8 x 3.8 x 5.2 in.
    • Panel cut-out size: DIN 92 x 92mm / 3.6 x 3.6 in.
    • Weight: approx 240g / 0.6 lb
    • Operating temperature: –20 to +75 °C / –4 to +167 °F WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information about California Propsition 65, go to or visit our California Proposition 65 page.


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