Zero Speed Switches for Conveyors and Industrial Machinery

Phares Zero Speed Switches monitor rotating equipment for zero speed, under speed, and over speed conditions, helping detect problems before they lead to costly equipment damage or production downtime. Models are available as self-contained sensor-and-relay devices or as DIN rail-mounted modules that work with your choice of sensor. Use Phares Zero Speed Switches on conveyors, bucket elevators, augers, fans, crushers, and other industrial machinery where reliable speed and motion monitoring is essential.

ZS09P Zero Speed Switch Sensor

The ZS09P is a compact, self-contained zero speed switch for applications requiring a higher-power relay output. It switches loads up to 5 amps, making it a good choice for directly controlling equipment or control circuits without a separate control module.

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ZS09R Zero Speed Switch Sensor

The ZS09R provides the same convenient sensor-and-relay approach as the ZS09P in a smaller package, with a 1-amp relay output. It is particularly well suited for sending speed-status signals to PLCs, VFDs, DCS systems, and other control equipment.

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ZS10 Zero Speed Switch Module

The ZS10 is a DIN rail-mounted zero speed switch module that works with your choice of industrial sensor. The sensor must provide a digital square wave signal. This flexible configuration keeps the sensor at the machine while the control module can be mounted safely inside a control panel. The ZS10 is well suited for industrial speed monitoring applications where a separate sensor and control module are preferred.

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ZS11 Zero Speed Switch Module

The ZS11 is designed for applications requiring multiple speed setpoints from one sensing location. Its three independent relay outputs allow different speed conditions to be monitored without using multiple PLC inputs or separate zero speed modules.

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ZS12 Zero Speed Switch

The ZS12 combines speed sensing and relay control in a rugged cast-aluminum enclosure designed for demanding industrial environments. Its replaceable sensor and point-of-measure installation make it a strong choice where durability, serviceability, and washdown resistance are important.

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