Weather and Dust Proof Zero Speed Switches

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]

  • Technology: Magnetic Proximity
  • Contacts: SPDT
  • Number of Relays: 1
  • AC Voltage Rating: 115 to 230
Shaft Speed Switch -- M100T
from Electro-Sensors, Inc.

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 (50-60 Hz) and 12, 24 VDC power options. • Works with Electro-Sensors magnetic pulser... [See More]

  • Technology: Magnetic Proximity
  • Trip Point: 5 to 100
  • Operating Range: 5 to 100
  • Number of Relays: 1
2100 Series -- 2120
from Control Concepts, Inc.

2100 Series zero speed switches are designed for service in industrial applications requiring protection against rust, rain, and hose directed water. 2100 Series switches are for shaft input speeds of 4 to 2000 RPM. Recommended method of driving is by split or flexible coupling. [See More]

  • Technology: Electromechanical
  • Trip Point: 14 to 19
  • Operating Range: 24 to 2000
  • Number of Relays: 1
4100 Series -- 4120
from Control Concepts, Inc.

4100 Series zero speed switches are designed for service in industrial applications requiring protection against rust, rain, and hose directed water. 4100 Series switches are for shaft input speeds of 24 to 1800 RPM. [See More]

  • Technology: Electromechanical
  • Trip Point: 14 to 19
  • Operating Range: 24 to 1800
  • Number of Relays: 1
8100 Series -- 8121-s
from Control Concepts, Inc.

8100 Series zero speed switches are designed for service in industrial applications requiring protection against rust, rain, and hose directed water. 8100 Series switches are internally geared for slow speed applications: shaft input speeds of 0.5 to 24 RPM. Recommended method of driving is by split... [See More]

  • Technology: Electromechanical
  • Trip Point: 1.5
  • Operating Range: 1.5 to 5
  • Number of Relays: 1
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]

  • Technology: Magnetic Proximity
  • Number of Relays: 1
  • Operating Range: 1 to 60000
  • Contacts: SPDT
Rotoguard® III -- S-A-3-B-1-Z-1
from Control Concepts, Inc.

The Rotoguard III is a switch device for sensing the reduction, increase or loss in rotational motion for many types of moving equipment. The unit can detect changes in motion between 1 and 400 RPM depending on the model selected. The Rotoguard III may be direct coupled or driven through belts and... [See More]

  • Technology: Electronic
  • Number of Relays: 1
  • Operating Range: 1 to 300
  • Contacts: DPDT