YX7310 – 3-Phase Voltage & Phase Protection Relay

Rated Voltage: AC 380V (also supports 220V, 400V, 415V, 440V)
Frequency: 50/60 Hz | Mounting: DIN rail | Output: SPDT relay contact

Key Protection Functions:

• Overvoltage Protection: Adjustable (0–20% above nominal)
• Undervoltage Protection: Adjustable (0–20% below nominal)
• Phase Sequence Detection
• Phase Failure Detection
• Time Delay: Adjustable from 0.1 to 10 seconds
• Response Time: ≤0.5 seconds

Electrical Ratings:

• Contact Rating: 3A @ 250V AC (cosφ = 1)
• Voltage Error Tolerance: ±2%
• Temperature Error Tolerance: ±2%
• Operating Temperature: -10°C to +55°C
• Enclosure: Compact, sealed housing with LED indicators

Features:

• Automatic reset after voltage returns to normal
• No false triggering on transient voltage dips/spikes
• LED indicators for power, fault, and relay status
• Ideal for unattended equipment protection

Applications:

• Industrial motors and compressors
• HVAC and refrigeration systems
• Control panels and switchgear
• Elevators and escalator systems