Temperature Monitoring Relay for Thermistor Motor Protection
The K8AK-TS1 100-240VAC: The K8AK-TS1 is a dedicated temperature monitoring relay from Omron's K8AK series, designed specifically for thermistor-based motor protection. It monitors motor winding temperature via a PTC thermistor input and trips the SPDT relay output when the threshold is exceeded, protecting the motor from overheating. It runs on a universal 100-240VAC supply and mounts directly on DIN rail.
Key Specifications – What You're Working With
Output is a single-pole double-throw relay rated 5A at 250VAC – suitable for signalling to a PLC, contactor coil, or alarm circuit. The unit has no built-in delay; it reacts immediately to the thermistor condition. Operating temperature range is -20°C to 60°C, covering most industrial cabinet environments.