High-End Motor Protection and Thermal Monitoring The KAEL FKR3-DIN and FKR3T-DIN models are high-end devices that combine both electrical and thermal monitoring for comprehensive motor protection. Their adjustable asymmetry and tripping delay features make these units extremely flexible for complex industrial systems.

Advanced Protection and Flexibility: The FKR3-DIN series offers three critical features in a single device for protecting sensitive motors: phase sequence control, adjustable asymmetry, and PTC protection that monitors motor winding temperature. Thanks to the adjustable trip delay (0-10 seconds), it is not affected by temporary grid interference, preventing unnecessary motor downtime.

Delayed phase relay with PTC, KAEL FKR3-DIN specs, adjustable unbalance protection, thermistor phase relay, 380V phase sequence monitor.

Smart Delay: Can wait up to 10 seconds when a fault is detected, ensuring production doesn't stop during short-term voltage fluctuations.