Voltage Relay Welrok D2-63 TN red

Welrok D2-63 TN red voltage relay is designed for protecting electrical equipment from voltage surges and deviations in alternating current networks.

Primary purpose: Automatic load disconnection when voltage goes beyond established limits (overvoltage/undervoltage). Used in electrical supply systems for residential and industrial facilities.

Design characteristics:

• D2 series — compact design for panel mounting
• Rated current: 63 A
• Neutral type: TN (grounding system)
• Indication: red LED status signaling
• Built-in trip indicator for disconnection diagnostics

Functionality:

• Voltage monitoring on all phases (for three-phase networks)
• Response time — less than 1 second when voltage goes beyond setpoint limits
• Adjustable setpoint thresholds for lower and upper voltage values
• Automatic recovery upon voltage normalization

Application: Equipment sensitive to power supply stability, pump stations, air conditioning systems, heating systems, boiler rooms.