THERMISTOR MONITOR AUTOMATIC RESET

The ALLEN-BRADLEY 817-E1 is a thermistor relay that provides automatic reset protection for equipment by monitoring positive temperature coefficient behavior. Designed for control power applications, it accepts 230V AC or 24V DC control inputs and operates on 50 Hz or 60 Hz supplies, offering one normally open output and one normally closed output for versatile circuit configurations. Functioning as an electronic protection device, it senses temperature-related changes via a PTC thermistor and switches outputs automatically to protect downstream components. Ideal for panel builders and maintenance technicians, it fits into control circuits where automatic thermal protection and clear NO/NC signaling are required.

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