Product Overview
- Type: Thyrite® Metal-Oxide Varistor (MOV) Surge Protective Device
- Rated Voltage: 25 kV
- Application Class: Medium-voltage protection (IEC 60099-4)
Primary Applications:
- Industrial power distribution systems
- Transformer protection
- Motor and generator protection
- Renewable energy installations (wind/solar farms)
Key Technical Specifications
- Parameter Value Test Standard
Rated Voltage (Ur) 25 kV IEC 60099-4
Maximum Continuous Operating Voltage 20 kVrms
Nominal Discharge Current (In) 10 kA (8/20μs)
Line Discharge Class Class 3
Pressure Relief Class 25 kA rms
Protection Level (Up) ≤65 kV (at 10kA)
Creepage Distance ≥650 mm
Housing Material Silicone rubber
Product Features
- ✔ High energy absorption capability (up to 40kJ per unit)
- ✔ Excellent pollution performance (special creepage design)
- ✔ Pressure relief system for safe failure mode
- ✔ UV-resistant silicone rubber housing
- ✔ Seismic withstand capability up to 3g acceleration
Mechanical Characteristics
- Mounting: Flange or bracket mounting
- Connection: M16 stud terminals
- Weight: Approximately 12 kg
- Operating Temperature: -40°C to +60°C
Standards Compliance
- IEC 60099-4 (Surge arresters)
- IEEE C62.11
- EN 60099-4
- Ordering Information
ABB Article Number: 1SAZ211201R2051
- Order Code: TA25DU-25M
- Packaging: Individual wooden crate packaging
