A Power Sensor measures either current or voltage and provides output on monitored parameter levels to a control system. Current sensors are capable of measuring both AC and DC current, in order to monitor power use and provide diagnostics for electrically-powered equipment. Applicable on nominal circuits of 120V, 240V and 480V, Voltage Sensors provide a fully isolated analog output proportional to rated nominal voltage in both sinusoidal and non-sinusoidal (variable frequency) situations.
Non-Contact interlock switches were specifically developed for monitoring protective covers such as doors, flaps and covers. The potential-free contacts are controlled by multiple magnets in the actuator, which makes the devices especially tamper-proof. The assembly comprises a sensor component and a separate magnet actuator component. The sensor is typically mounted to a stationary portion of a structure and the magnet to a movable portion. When the sensor and the actuator are within operating range, the NC contacts will be closed and the NO contacts will be open.
For Key Interlock and Safety Limit Switches, two different principles of operation ensure the mechanical securing action: magnetic-force interlocking (open-circuit principle) and spring-force interlocking (closed-circuit principle). Key Interlock switches are designed with two parts— the sensor and the actuator. The sensor is typically mounted on the stationary portion of a structure and the actuator is mounted on the movable portion. The sensor is designed to work with the correct actuator (key) to reduce tampering and increase safety. Actuation of the interlock switch occurs only when the corresponding key is inserted into the key slot. The key is usually mounted on a door or machine guard in such a way that when the door or the guard is closed, the key fits into the slot actuating the switch. The special key design makes the safety interlock switch extremely difficult to defeat. When inserted into the slot, the key performs three separate mechanical functions.
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EVT series VoltageWatch voltage sensors
Select the correct product family based on the sensing requirement
ECS series CurrentWatch AC current switches
ECSC series compact CurrentWatch current switches
ECSJ series CurrentWatch AC current switches
ECS7 series CurrentWatch AC current switches
ECSTD series CurrentWatch AC current switches
ECSD series CurrentWatch DC current switches
EAC series CurrentWatch AC current sensors
EDC series CurrentWatch DC current sensors
EGF series CurrentWatch ground fault sensors
EGFL series CurrentWatch ground fault sensors