Tense DGK-01 Single Phase Digital Voltage Control Relay

The Tense DGK-01 is a microprocessor controlled single phase (monophase) voltage protection relay engineered to safeguard electrical loads from hazardous over voltage and under voltage grid conditions. Combining analog adjustability with digital accuracy, this device features a 3 digit red LED screen that provides real time line voltage tracking. Housed in a compact, modular enclosure optimized for 35 mm DIN rail mounting, it acts as a smart safety gatekeeper by automatically disconnecting downstream contactors when electrical parameters slide outside safe operating thresholds.

Key Features

Digital Voltage Readout Window: Built with a continuous 3 digit LED display to give technicians immediate, clear field telemetry of live operating voltages ( $V\sim$ ).
Adjustable Over Voltage Threshold ( $U>$ ): Features a dedicated front dial to customize the high voltage trip limit from 230V up to 280V AC.
Adjustable Under Voltage Threshold ( $U<$ ) : Outfitted with a manual calibration dial to establish a low voltage protection threshold spanning from 150V up to 210V AC.
Configurable Error Waiting Timer ( $t$ ): Equipped with an adjustable trip delay potentiometer selectable between 0.1 seconds and 10 seconds to filter out harmless momentary voltage sags and grid fluctuations.
Dynamic Diagnostic LED Indicators: Employs explicit status indicators on the faceplate including high voltage error ( $U>$ ), low voltage error ( $U<$ ), and active relay contact status (OUT).
Secure Bottom Terminal Entry: Structured with clearly labeled port sockets for Line ( $L$ ), Neutral ( $N$ ), and changeover relay contacts ( $1, 2, 3$ ) for clean, straightforward wiring.

Technical Specifications

Feature	Specification
Model Number	DGK-01
Brand / Manufacturer	Tense Electronics
Device Typology	Monophase Voltage Control Relay
Nominal System Voltage ( $U_n$ )	$220\text{V AC}$ $50 / 60\text{ Hz}$ configuration
Over Voltage Set Range ( $U>$ )	230V – 280V AC (Adjustable potentiometer)
Under Voltage Set Range ( $U<$ )	150V – 210V AC (Adjustable potentiometer)
Error Waiting Time Range ( $t$ )	0.1 sec. – 10 sec. (Adjustable potentiometer)
Output Relay Contact	SPDT dry contact rated at $5A / 250\text{V AC}$ (Resistive Load)
Mounting Orientation	Standard 35 mm DIN Rail Snap on Enclosure
Manufacturing Origin	Made in Turkey

Applications

Single Phase Industrial Automation Panelboards: Mounted on the input stage of automation cabinets to protect delicate PLCs and 24V DC switch mode power supplies (SMPS) from grid volatility.
Irrigation and Small Pump Control Boxes: Guarding agricultural submersible pump motors and fans against thermal degradation caused by localized line drops or low voltage brownouts.
Commercial Building Infrastructure Enclosures: Protecting telecom cabinets, server racks, and sensitive lighting arrays against grid over voltages and power surges.
HVAC Chiller and Air Handler Systems: Serving as a reliable, line side guard inside cooling cabinets to prevent contactor chattering or compressor block burnouts during heavy utility peak demands.