Field Adjustable Zero Speed Switches

Rotary Airlock Shaft Monitoring Switch -- Rotospeed Switch
from Rotolok Valves, Inc.

The Rotolok Rotospeed Switch can be used whenever and wherever shaft monitoring is required. Its compact design and trouble free operation makes it ideal for Rotary Airlock, Screw Conveyor and Bucket Elevator applications, for overspeed and underspeed detection. The Rotospeed Switch was developed... [See More]

  • Technology: Electromechanical
  • Number of Relays: 1
  • Operating Range: 2.5 to 200
  • AC Voltage Rating: 24 to 240
Economical Shaft Speed Switch -- DMS100
from Electro-Sensors, Inc.

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 8 PPR input (DMS100). • 100 RPM to 5000 RPM with 4 PPR input (DMS5000). • 2 SPDT... [See More]

  • Technology: Magnetic Proximity
  • Number of Relays: 2
  • Operating Range: 5 to 100
  • Contacts: SPDT
2100 Series -- 2120-A1
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: 25 to 70
  • Operating Range: 30 to 2000
  • Number of Relays: 1
4100 Series -- 4120-A1
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: 25 to 70
  • Operating Range: 30 to 1800
  • Number of Relays: 1
Explosion Proof Series -- 2120-A1
from Control Concepts, Inc.

2100 & 8100 Explosion Proof Series zero speed switches are available Factory Mutual Approved EP-1. Explosion Proof for Class I, Division 1, Groups C &D; and as Dust-Ignition Proof for Class II, Division 1, Groups E, F, and G hazardous locations, indoors. [See More]

  • Technology: Electromechanical
  • Trip Point: 25 to 70
  • Operating Range: 30 to 2000
  • 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-A-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