Surge Protection for AC Power Distribution Systems
The XH Series AC Surge Protection Device is designed to protect low-voltage electrical installations and connected equipment from transient overvoltage caused by lightning-induced surges and switching operations.
The devices are suitable for 50/60 Hz AC power systems and can be installed in distribution boards, control cabinets and other electrical enclosures using a standard 35 mm DIN rail.
Multiple discharge current ratings are available to meet different surge protection requirements. The modular design allows flexible configuration for single-phase and three-phase electrical systems.
The series is suitable for residential, commercial and industrial applications where reliable surge protection is required for electrical equipment, control systems and power distribution networks.
Key Features
- Protection against lightning and switching surges
- Multiple discharge current ratings available
- Fast response time
- DIN rail mounting
- Suitable for AC 50/60 Hz systems
- 1P / 2P / 3P / 4P configurations available
- Flame-retardant reinforced housing
- Suitable for distribution boards and control cabinets
- Wide operating temperature range
Key Models
| Model | Nominal Discharge Current (In) | Max. Discharge Current (Imax) |
|---|---|---|
| XH-20KA | 10 kA | 20 kA |
| XH-40KA | 20 kA | 40 kA |
| XH-60KA | 30 kA | 60 kA |
| XH-80KA | 40 kA | 80 kA |
| XH-100KA | 60 kA | 100 kA |
Maximum Continuous Operating Voltage (Uc):
275 V / 320 V / 385 V / 420 V / 440 V, depending on model
High-Energy Surge Protection Models
| Model | Iimp (10/350 μs) | Up |
|---|---|---|
| XH-15KA | 15 kA | ≤2.5 kV |
| XH-25KA | 25 kA | ≤2.0 kV |
| XH-50KA | 25 kA | ≤2.0 kV |
Typical Applications
- Main distribution boards
- Sub-distribution panels
- Electrical control cabinets
- Industrial machinery
- Commercial buildings
- Residential distribution systems
- Factory electrical systems
- Power distribution equipment
