Overview
The ABB MVR 0.80-10KA is an industrial-grade metal-oxide surge arrester designed to protect electrical systems from transient overvoltages. Rated at 800V with a 10KA maximum discharge current, this arrester uses proven metal-oxide resistor technology without spark gaps and is engineered to IEC 60099-4 standards. It provides secure protection against atmospheric discharges and switching-induced voltage transients in medium-voltage AC and DC systems.
Key Features
- Metal-oxide (MO) resistor design without spark gaps for reliable overvoltage suppression
- 10KA maximum nominal discharge current for industrial-grade surge protection
- 800V rated voltage (AC/DC compatible where specified)
- Direct-molded housing for environmental robustness and long-term stability
- Maintenance-free operation with negligible aging effects
- Compact form factor suitable for indoor industrial installations
Technical Specifications
- Rated Voltage (Uc): 800V AC
- Maximum Discharge Current: 10KA (8/20 µs impulse)
- Arrester Type: Metal-oxide (MO) without spark gaps
- Housing Material: Direct-molded PUR/silicone
- Operating Temperature Range: –40 to +40°C
- System Frequency: 15 to 62 Hz (DC and power frequency)
- Altitude Rating: Up to 1800 m standard
- Design Standard: IEC 60099-4
- Applications: AC/DC systems, indoor installations
Typical Applications
- Protection of rotating machinery and motors in industrial facilities
- Cable sheath and equipment protection in medium-voltage distribution systems
- Overvoltage suppression in control systems and switchgear cabinets
- Indoor industrial electrical systems in manufacturing and processing plants
- Power conditioning for sensitive industrial automation equipment
Compatibility & Replacements
Compatible With
- AC and DC electrical systems rated 800V
- Medium-voltage industrial equipment and machinery
- Switchgear and control system cabinets
- Power distribution systems with protection requirements
- Systems requiring IEC 60099-4 compliant surge protection
Replaces / Drop-In Replacement For
- Other ABB MVR 0.80-10KA units (direct replacement)
- Verify compatibility with your system integrator before ordering for alternative surge arrester models
Works With
- Industrial electrical systems with AC and DC voltage
- Medium-voltage distribution networks
- Equipment requiring lightning and transient surge protection
- Switchgear protection schemes compliant with IEC standards
