TG30S-220-440V three-phase voltage protective relay

TG30S-220-440V three-phase voltage protective relay 
Key Features and Specifications

• Operating Voltage: 220V–440V AC (50/60Hz).
• Output Contact Rating: 5A at 250V AC (resistive load).
• Mounting Type: Standard guide rail (DIN rail) installation.
• Dimensions: Compact mini size (approx. 30 × 72 × 64 mm).
• Indicators: LED lights (Red for normal/power status, Yellow for phase fault/wrong sequence). 

Protection Functions

• Phase Reversal (Wrong Phase) Protection: Prevents motor damage if L1, L2, and L3 lines are connected in the incorrect order.
• Phase Loss (Failure) Protection: Detects static or active loss of any single phase due to blown fuses or broken lines.
• Voltage Imbalance Protection: Guards against three-phase voltage imbalances (typically adjustable/set around 10%–20%).
• Surge & Lightning Protection: Built-in resistance against sudden line surges. 

If you want, tell me:

• What type of motor or equipment you are protecting
• Whether you are experiencing a specific error or wiring issue

I can help you troubleshoot or set it up correctly.