DAZIC® 8100 Series

8100 Series Zero Speed Switch

Operating Range: 0.5 to 25 RPM

The 8100 Series Zero Speed Switches are ideal for slow speed applications. They are electromechanical rotary motion controls requiring no electrical input to operate.

These switches are ideal for slow speed applications.

These shaft-driven devices can let you know if equipment is running too fast, too slow, or not at all. These UL-approved speed switches can be interlocked as part of a conveyor system to ensure that if one machine fails, the entire operation will stop, avoiding an expensive and time-consuming pile-up of material.

  • For shaft input speeds of 0.5 to 25 RPM.
  • Will operate in temperatures ranging from -40° F to +250° F (-40° C to +482° C).
  • NEMA 4/4X housings are painted with an epoxy-based powder coat to provide corrosion resistance, as well as protection against dust, rain and hose-directed water.

Speed Switch devices coupled to a corresponding shaft, must be properly mounted and aligned to avoid putting extra load on DAZIC bearings, which may cause premature failure. The use of installation accessories such as Mounting Brackets and K-Couplings provide a secure foundation and eliminate misalignment connection problems. 

Need assistance choosing the appropriate speed switch? Fill out the Application Data Sheet and a Sales Engineer will help determine which switch is right for your specific application.

Dazic® Application Data Sheet
8100 Series
Driver Shaft-to-Shaft
Shaft Diameter 1/2″ (1.27 cm)
Operating Range 0.5 to 25 RPM
Driver Torque Required .0208 ft-lb (4 in-oz) (.0282 Nm)
Temperature Tolerance -40°F to +250°F (-40°C to +121°C)
Housing Options Aluminum (AL) or Cast Iron (CI)
NEMA Rating 4/4x
Mounting Options Base Flange or Flange with Pilot
Dimensions (L x W x H) 6.02″ x 4.25″ x 3.93″ (15.29 cm x 10.80 cm x 9.98 cm)
Wiring Contact Options SPDT, DPDT, SPDT(2)
Weight AL – 4 lbs. (1.81 kg)      CI – 8 lbs. (3.63 kg)
DAZIC® 8100 Series


It takes just 5 clicks to fill out our Data Application sheet. Our Sales Engineer can then recommend the best speed switch for your specific needs.