Surge Arrester – Indoor Distribution High Class (DH) 6 kV
In Summary, The Raychem Indoor Distribution High Class (DH) 6 kV Surge Arrester is a medium-voltage, metal-oxide surge protection device designed to safeguard 6.6 kV electrical distribution systems from lightning strikes and switching surges. It features gapless ZnO technology for fast response, high energy absorption capability, and low residual voltage, ensuring reliable protection of transformers, switchgear, and cable terminations. The arrester has a 10 kA rated discharge current, complies with IEC 60099-4 standards, and utilizes a durable silicone polymer housing that is moisture-resistant, maintenance-free, and suitable for long-term indoor service.
Description
The Raychem Indoor Distribution High Class (DH) 6 kV Surge Arrester is a medium-voltage metal-oxide (ZnO) surge protection device designed to protect indoor electrical distribution systems from lightning surges and switching over-voltages. It is typically used in 6.6 kV power distribution networks, switchgear panels, transformers, cable terminations, and other medium-voltage equipment.
Key Features :
- Rated Voltage: 6 kV
- System Voltage: 6.6 kV
- Rated Discharge Current: 10 kA (8/20 μs)
- Distribution High Duty (DH) Class – IEC Class 1
- Gapless Metal Oxide (MO) technology for fast response
- Low residual voltage for improved insulation protection
- Safe non-shattering short-circuit behaviour
- Hydrophobic silicone housing resistant to tracking and erosion
- Direct molded construction prevents moisture ingress
- Maintenance-free operation
- Conforms to IEC 60099-4 standards.
Technical Summary :
| Parameter | Value |
| Product Type | Indoor Distribution High Class Surge Arrester |
| System Voltage | 6.6 kV |
| Rated Voltage (Ur) | 6 kV |
| Rated Discharge Current | 10 kA |
| Line Discharge Class | DH (Class 1) |
| High Current Impulse (4/10 μs) | 100 kA |
| Application | Indoor MV Distribution Systems |
| Standard | IEC 60099-4 |
| Housing Material | Silicone Polymeric Insulation |
Applications :
- Indoor medium-voltage switchgear
- Distribution transformers
- Cable end terminations
- Ring Main Units (RMUs)
- Industrial power distribution networks
- Utility substations operating at 6.6 kV systems.
The Raychem Indoor Distribution High Class (DH) 6 kV Surge Arrester (AJA1010381) is a 10 kA, IEC 60099-4 compliant metal-oxide arrester designed for 6.6 kV indoor distribution systems. It provides reliable protection against lightning and switching surges, offers low residual voltage, high energy absorption capability, moisture-resistant polymeric housing, and maintenance-free service life. It is widely used for protecting transformers, switchgear, and cable terminations in medium-voltage networks.
Brand
Raychem RPG
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