• Murphy


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 keyswitch, 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

  • CE (European Conformity) mark
Specifications Downloads How to Order
Specifications Drawer: 
  • 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

Additional product documentation can be found on our product support website or by clicking the Help Center button above.

Primary Method - Table: 
Part NumberModel/Description
41700147CANstart CST9631K2, standard settings
41700150CANstart CST9641K2, standard settings
41700157Spare mounting clips (pack of 4)
65700256Spare keyswitch (K2 type), includes key
00003235Spare key (K2 type)