Electro-Sensors, Inc. Datasheets for Zero Speed Switches

Zero speed switches are devices used to detect stoppage of a rotating shaft. They typically have one or more relays.
Zero Speed Switches: Learn more

Product Name Notes
Digital Speed Switch Features • Works with remote / external pulse frequency output sensor (NPN, PNP, or Mag Pick-up) • DPDT relay output • Under-speed setpoint adjustment from 0.5-5,000 rpm...
Reverse Rotation Detector Features • Relay changes state when shaft direction reverses • Relay resets when reverse motion stops • Easy installation and calibration • Cast aluminum switch housing NEMA...
Shaft Speed Switch Features • Internal sensor • SPDT relay output • 5-100 rpm (M100T), 100-5,000 rpm (M5000T) under-speed setting • Terminal block for easy wiring • 115, 230 VAC...
Economical Shaft Speed Switch • Works with remote/external pulse frequency output sensor (NPN, PNP, Mag Pick-up and TTL) • Over-speed or under-speed configuration • 5 RPM to 100 RPM with...
Shaft Speed Switch Features • Failsafe operation • Setpoint ranges: 1-100 and 10-1000 rpm • Built-in start delay • DIN rail or stand alone mounting • Dial-in calibration does not...
Shaft Speed Switch Features • Easy installation and calibration • Rugged - dust, dirt, and grease proof • 115 VAC, 50-60 Hz only • Failsafe Operation Note: Electro-Sensors recommends the...
Shaft Speed Switches Features • Single or double relay setpoint(s) • Failsafe operation • Built-in start delay • Selectable under-speed or over-speed • Setpoint ranges: 1-100 and 10-1,000 rpm •
Slow Speed Switch Features • Dial-in calibration does not require power • Setpoint ranges: 0.01 - 0.99 and 0.1 - 9.9 rpm • ETL approved to UL 508 standard •