AC Zero Speed Switches Datasheets

Speed Switch -- ES 100
from Baumer Ltd.

Speed switches are intended for monitoring speed limits. Independent from other regulating systems, speed switches take over safety-relevant speed monitoring tasks at machines and production facilities. Speed switches are available both as digital and electronic. A versatile product range. rugged,... [See More]

  • Power Supply: AC; DC
  • Operating Range: 110 to 500
  • Technology: Electromechanical
  • Number of Relays: 1
Digital Speed Switch -- DR1000
from Electro-Sensors, Inc.

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 (at 8 PPR). • Terminal blocks for easy wiring. • 115, 230 VAC (50-60 Hz) and... [See More]

  • Power Supply: AC; DC (optional feature)
  • Number of Relays: 1
  • Technology: Magnetic Proximity
  • Contacts: DPDT
Inductive Rotation Control -- S3431 CRT30 – R10L
from Fargo Controls, Inc.

The CRT30 is a combination of a 30mm diameter inductive sensor and rotation control device. The operating distance of the sensor is between 4 and 6 mm on metallic material. The wide power supply range (18-50 DC and 18-240 AC), various programmable functions, and output relay make this device... [See More]

  • Power Supply: AC; DC
  • Number of Relays: 1
  • Technology: Magnetic Proximity
  • AC Voltage Rating: 18 to 240
Speed Switch AC Powered -- IFMR0066
from Red Lion Controls, Inc.

Specifications: User Settable Trip Frequency, from 0.1 Hz to 25 kHz. Over-speed, Under-speed, and Zero-speed Detection. Relay Latching, Alarm Override, and Alarm Reset Functions. Hysteresis and Offset Functions Available. 85 to 250 VAC Power Input [See More]

  • Power Supply: AC
  • Contacts: SPDT
  • Technology: Electromechanical
  • AC Voltage Rating: 85 to 250
Heavy Duty Zero-Speed Alarm Switch -- SITRANS WM100
from Siemens Process Instrumentation

verview. SITRANS WM100 is a heavy-duty zero-speed alarm switch. This non-contacting unit provides cost-effective equipment protection even in the harshest conditions. Benefits. Up to 100 mm (4 inch) gap between SITRANS WM100 and targets. Rugged, low maintenance suitable for tough environments. 1... [See More]

  • Power Supply: AC
  • Number of Relays: 1
  • Technology: Magnetic Proximity
  • Contacts: SPDT
PRX 120 Proximity Speed Switch -- PRX120
from Control Concepts, Inc.

The Control Concepts Prox Switch is a micro-controlled, field adjustable, multi-setpoint speed / rate monitor that provides 4 character alpha numeric visual indication and relay output. The unit offers many versatile features that provide flexibility in application and confidence in sensing. Full... [See More]

  • Power Supply: AC; DC (optional feature)
  • Operating Range: 1 to 60000
  • Technology: Magnetic Proximity
  • Number of Relays: 1
Shaft Rotation Control Relay -- P48SMP
from Hoyt Electrical Instrument Works, Inc.

SHAFT ROTATION monitors, frequently called ZERO SPEED or TACHOMETER relays operate when the pulses (usually generated by a proximity switch) received fall below a user selected set point. This situation is sometimes caused by something jamming the machine. The motor(s) draws excessive current thus... [See More]

  • Power Supply: AC
  • Operating Range: 10000
  • Technology: Electromechanical
  • Contacts: SPDT

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