SPDT 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]

  • Contacts: SPDT
  • Number of Relays: 1
  • Technology: Magnetic Proximity
  • AC Voltage Rating: 115 to 230
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]

  • Contacts: SPDT
  • Operating Range: 5 to 100
  • Technology: Magnetic Proximity
  • Number of Relays: 2
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]

  • Contacts: SPDT
  • Operating Range: 24 to 2000
  • Technology: Electromechanical
  • Trip Point: 14 to 19
Shaft Speed Switch -- LRB1000
from Electro-Sensors, Inc.

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 require power. • ETL approved to UL 508 standard. The LRB1000 (single relay, 1... [See More]

  • Contacts: SPDT
  • Number of Relays: 1
  • Technology: Magnetic Proximity
  • AC Voltage Rating: 115
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]

  • Contacts: SPDT
  • Operating Range: 24 to 1800
  • Technology: Electromechanical
  • Trip Point: 14 to 19
Shaft Speed Switch -- M100
from Electro-Sensors, Inc.

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 new and improved M100T or M5000T design for new designs and when replacing the M100 or... [See More]

  • Contacts: SPDT
  • Number of Relays: 1
  • Technology: Magnetic Proximity
  • AC Voltage Rating: 115
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]

  • Contacts: SPDT
  • Operating Range: 1.5 to 5
  • Technology: Electromechanical
  • Trip Point: 1.5
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]

  • Contacts: SPDT
  • Operating Range: 5 to 100
  • Technology: Magnetic Proximity
  • Trip Point: 5 to 100
Explosion Proof Series -- 2120
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]

  • Contacts: SPDT
  • Operating Range: 24 to 2000
  • Technology: Electromechanical
  • Trip Point: 14 to 19
Shaft Speed Switch -- SCP2000
from Electro-Sensors, Inc.

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. • Visual setpoint adjustment with digital accuracy. • Class I, Div... [See More]

  • Contacts: SPDT
  • Number of Relays: 1
  • Technology: Magnetic Proximity
  • AC Voltage Rating: 250
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]

  • Contacts: SPDT
  • Operating Range: 1 to 60000
  • Technology: Magnetic Proximity
  • Number of Relays: 1
Slow Speed Switch -- SS110
from Electro-Sensors, Inc.

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. • Failsafe operation in under-speed mode. • DIN rail or stand alone mounting. The SS110 is completely field... [See More]

  • Contacts: SPDT
  • Number of Relays: 1
  • Technology: Magnetic Proximity
  • AC Voltage Rating: 115