Product Overview
- Type: Low-Voltage Surge Arrester (MOV – Metal Oxide Varistor)
- Series: ABB Thyrite® (TA25-DU Series)
Application:
- Protection of control circuits, instrumentation, and telecom systems
- Used in industrial automation, renewable energy (solar/wind), and power distribution
- Suitable for DIN rail mounting in panels
Standards Compliance:
- IEC 61643-11 (Low-voltage surge protective devices)
- UL 1449 4th Ed. (US standard)
Key Specifications
- Parameter Value
Rated Voltage (Un) 5.0 kV (system voltage: 3.5-5.0 kV)
Max. Continuous Voltage (Uc) 4.0 kV AC / 5.0 kV DC
Nominal Discharge Current (In) 5 kA (8/20µs)
Protection Level (Up) ≤2.5 kV (at In)
Response Time <25 ns
Mounting DIN Rail (35mm) or Screw Mount
Connection Screw terminals (max 6mm² wire)
Product Features
- ✔ Compact design (space-saving in control panels)
✔ High energy absorption (ABB’s Thyrite® technology)
✔ Visual status indicator (LED for monitoring)
✔ Thermal disconnector (safe failure mode)
✔ Wide temperature range (-40°C to +85°C)
Ordering Information
- ABB Part No.: 1SAZ211201R1035
- Model No.: TA25-DU-5,0
- Packaging: Typically sold as single units
