Monitoring/protection three-phase relay for overvoltage, undervoltage control

Relays to protect sensitive operating voltage and undervoltage equipment from network voltage faults. Single-phase. Manufacturer TENSE.

Detailed description

GKM-11 over- and undervoltage monitoring relay, single-phase

The GKM-11 adjustable voltage protection relay (over- and undervoltage) is designed to measure voltage and prevent faults by switching off the relay (disconnecting the load) in single-phase distribution systems, distribution boards, and equipment. It monitors the voltage magnitude between L-N in a 1-phase system.

Rotary potentiometers can be used to set the upper and lower voltage limits at which the output relay contact opens. Adjustable time delays "DT" and "RT" eliminate excessively fast unwanted responses. Internally, it allows current from the monitored voltage. Normal status is indicated by a green LED. Fault status is indicated by 2 red LEDs "LV" and "HV" and the opening of the relay output contact.

Technical specifications

Operating voltage: 220 V AC, 50/60 Hz.

High voltage: 230 V-300 V

Low voltage: 150V-210V

Delay time: 0.5 s - 20 s.

Reset time: 0.5 s - 20 s.

Operating power: <6 VA

Operating temperature: -20 °C ..... + 55 °C

Indicator: 3 LEDs

Connection type: DIN rail mounting.

Weight: 0.100 kg

Contact: 5A / 250VAC Resistive load

Operating altitude: < 2000 m