SSW-674-676 - Speed Switches

SSW-674-676 - Speed Switches

The SSW-674, SSW-675, and SSW-676 are respectively one, two, and three element electronic speed switches. They are powered by a DC battery supply and receive engine speed information from a magnetic speed sensor.

Both the SSW-675 and SSW-676 senses and indicates a low speed setting (CRANK termination), and a high speed setting (OVERSPEED). The SSW-676 has a third mid speed setting that can be used for several purposes such as paralleling indication, underspeed, or general auxiliary contacts. The single element SSW-674 has a wide range of adjustment and can be used for any one of these three functions.

All speed elements activate discrete, internal relay contacts and LED indicators. The overspeed section of the SSW-675 and SSW-676 include TEST and RESET switches. An ouput voltage proportional to engine speed is provided to operate an external tachometer.
• SSW-674 (wide range, single element)
• SSW-675 (two element with 10A relay outputs)
• SSW-676 (three element)


  • Five Amp Contacts
  • Tachometer Output
  • Overspeed Test Function
  • Repeatability Set Points
  • Multiple Purpose Switching
  • Excellent Repeatability
  • Reverse Voltage Protection


  • Durable
  • Reliable
  • Cost Effective