Three-phase voltage and current protection relay 1–63 A for DIN rail, GKE-63T

Three-phase voltage and current protection relay for DIN rail, Tense

The Tense GKE-63T advanced protection relay with integrated microprocessor is designed for comprehensive protection of electrical equipment and motors against adverse effects in the distribution network. The device continuously monitors network parameters and provides highly accurate protection against overvoltage, undervoltage, current overload, voltage asymmetry, phase failure or interchange, and internal overheating. The relay is equipped with an automatic reset function with adjustable time delay and memory for storing the last fault type. The compact modular design is intended for easy installation on a standard 35 mm DIN rail.

Main operating modes

• Synchronous mode: three-phase operation – in case of a fault in one phase, the entire three-phase circuit is switched off.

• Asynchronous mode: independent operation – each phase is monitored and switched off separately (suitable for single-phase loads distributed across three phases).

Technical parameters

• Product type: Digital protection relay (voltage and current)

• Number of phases: 3 (three-phase)

• Rated current (adjustable): 1 – 63 A

• Switching speed in case of short circuit: 0,04 s

• Neutral conductor (N) interruption protection: Yes

• Mounting method: 35 mm DIN mounting rail

Adjustment ranges

• Overvoltage protection: 220 – 300 V

• Undervoltage protection: 80 – 210 V

• Voltage asymmetry: 20 – 99 V

• Power-on delay: 1 – 300 s

• Reset delay: 1 – 600 s