Type: Thyrite® (MOV) surge arrester (ABB’s proprietary varistor technology)
Voltage Rating: 3.1 kV (based on “TA25DU-3.1”)
Application:
- Protects LV equipment (e.g., control circuits, instrumentation, telecom, solar PV systems)
- Used in panel boards, switchgear, and industrial installations
- Standard: Complies with IEC 61643-11 (low-voltage surge protective devices)
Key Specifications (Estimated)
- Maximum Continuous Operating Voltage (Uc): ~3.1 kV
- Nominal Discharge Current (In): Likely 5 kA or 10 kA
- Protection Level (Up): Typically <2 kV (depends on model)
- Response Time: Nanosecond range (fast-acting)
- Mounting: DIN rail or screw mounting (common for LV arresters)