BWI Eagle, Inc. offers Eagle Tac-Switches, Optima Series switches, and I.S. Optima Series switches. Switches can monitor speeds from 0 to 2000 RPM, they have operator temperatures ranging from -40 to +140°F, and power inputs up to 120 VAC. Switches are enclosed in ABS plastic, and they have DP/DT 10 amp @ 120 V relay contacts. Switch applications include: processing apparatuses, drag conveyors, bucket elevators, pumps, fans, kilns, conveyors, etc.

Torq Corp. offers ZSS Zero Speed switches and XZS Zero Speed switches for hazardous locations. These switches have operating temperatures ranging from -22 to 150°F, an output power of 10 amps, an maximum input power of 240 VAC/130 VDC, and a maximum continuous running speed of 5000 RPM. Switches have applications for saw mills, rotary airlocks, power plants, plastics industries, OEM, mining equipment, foundries, food processing, chemical processing, bucket elevators, etc.

Access Control Sales offers Eagle Tac-Switches, Eagle Optima Series switches, and Eagle I.S. Optima Series intrinsically safe critical/speed switches. Switches have operating temperatures ranging from -40 to +140°F, an adjustable ramp-up timer from 1-20 seconds, RPMs up to 5000, DP/DT 8-10 AMP @120 V relay contacts, and a power input of 120 VAC. Switches have applications for conveyor scales, processing apparatus, fans, crushers, fans, crushers, pumps, etc.

Phares Electronics LLC offers ZS09R zero speed switch sensors, ZS09P zero speed switch sensors, and ZS10 motion detector modules. ZS09R and ZS09P zero speed switch sensors feature isolated outputs, 6-24 VDC/120 VAC operating voltages, operating temperatures ranging from -40 to 140°F, self-contained units, etc. ZS10 motion detector modules feature DIN rail mounts, diagnostic LED's, adjustable setpoints, interfaces for various sensor types, etc. ZS10 motion detector module applications include: exhaust blowers/fans, furnace circulating blowers, coal fed boilers, conveyor speed monitors, etc.

MaxiGard offers Maxigard A5000 Series switches. Switches have the following features: drive failure/mechanical equipment detection, equipment controlling, prove rotation of mechanical equipment, provides rotation signals to PLC, LED indicating light, 5 amp relay outputs, etc. Applications include: blenders, dust collectors, rotary airlocks, screw conveyors, pumps, gear drives, etc.

Control Concepts, Inc. offers Rotoguard III speed switches. Switches detect changes in motion between 1 and 400 RPM, and are available in the following enclosure types: NEMA 4/5 weather/dust proof and NEMA 7/9 explosion proof. Switch applications include: rotary kilns, burners, dryers, crushers, airlocks, fans, bucket elevators, drums, motors, blowers, conveyors, etc.

Hubbell Industrial offers Series 2200 Type PR zero-speed plugging switches (with normally open contacts) for machine interlocking and machine tool applications.

4B Components Ltd. offers Zero Speed switches for the following applications: PLC connection, hazard monitory systems, screw conveyor flight detection, elevator bucket bolts, moving ferrous targets, bucket elevators, belt slips, etc. M800 Elite speed switches have a universal voltage rating range from 24 to 240 VAC/VDC, they are microprocessor controlled, they have 10/20% underspeed dual set points, a submersible construction, and LED indication.