Whole House Lightning Protection T1 T2 SPD Three Phase 280V 12.5kA 30kA 50kA DIN Rail Mount
LPM H12.5M-280/3+NPE is a T1+T2 level power surge protector designed for three-phase power supply systems.
| Benefits | ||
 Minimize Downtime: Hot-swappable modules let you replace faulty units in minutes, no power shutdown required, even in high-vibration industrial environments. |
 Operate Safely in Extreme Cold: The ultra-low temp release mechanism ensures reliable protection down to -40°C, eliminating cold-start failures. |
 Proactive Maintenance: Real-time status windows and remote alerts let you monitor health remotely, so you can fix issues before they cause outages. |
Suitable for installation in LPZ 0A-B and subsequent lightning protection zones to ensure effective T1+T2 protection.
Specifications & Parameters
| Standards | IEC 61643-11 |
| SPD Type | T1, T2 |
| Rated Voltage (Un) | 220Vac(50Hz) |
| Maximum Continuous Operating Voltage (Uc) | 280Vac(50Hz) |
| Nominal Discharge Current (In) | 30kA (L-N) / 50kA (N-E) |
| Lightning Discharge Current (Iimp) | 12.5kA (L-N) / 50kA (N-E) |
| Voltage Protection Level (Up) | ≤1.5kV (L-N) / ≤1.5kV (N-E) |
| Response Time | ≤25ns |
| Protection Circuit | L1,L2,L3-N,N-E |
| Installation Method | 35mm DIN Rail |
Mechanical Parameters
| Pole | 3 Pole |
| Screw torque | 5N·m |
| Strip length | 12mm |
| Wiring cross-sectional area | 2.5mm²-32mm² |
| Product size | 90mm×72mm×80mm |
| Shell material and flame retardant grade | Mineral nylon PA6, V0 |
| Alarm system - Deterioration indication | Window green: OK; Window red: Fail |
| Normally closed and normally open switching contacts | Normally closed and normally open switching contacts |
| Remote signaling contact switching ability | 125Vac/1A, 125Vdc/0.2A |
| Maximum connection capacity of remote signaling | 2.5mm² |
Installation Tips
1.Install the SPD in LPZ 0A-B or subsequent lightning protection zones to ensure effective T1+T2 protection.
2.Use wiring with cross-sectional area 2.5mm²-32mm² and tighten screws to 5N·m torque.
3.The pluggable module design allows for hot-swapping, reducing downtime during maintenance.
4.Regularly check the status window; replace the module immediately if it turns red (failure status).
5.Ensure the grounding system meets requirements (ground resistance ≤4Ω) for optimal surge diversion.
6.Avoid using the product in environments with strong vibration beyond its anti-vibration capacity.
FAQ
A1: It uses MOV (Metal Oxide Varistor) for L-N protection and GDT (Gas Discharge Tube) for N-E protection,
A2: Yes, the pluggable module design allows for hot-swapping, enabling module replacement without disconnecting the power supply.
A3: It ensures the product operates stably in industrial environments with vibration, such as manufacturing plants and power plants.
A4: The L-N response time is ≤25ns (faster for line-neutral surges),
A5: Yes. It is suitable for three-phase power systems in solar parks, providing comprehensive lightning protection for inverters and distribution systems.
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