Standards and certifications
โ IEC/EN 61643-11 compliant
โ CE, RoHS certified
โ Class II SPD for residential and industrial panels
Applications
โ Secondary protection in AC distribution panels with upstream Type 1 SPD
โ First-stage protection in commercial and residential buildings without external lightning protection
โ Fine protection for industrial control panels, drives, and HVAC systems
โ Surge suppression in smart buildings with PLC communication systems
โ Equipment protection: UPS units, medical devices, security electronics
TPK-20 Series โ Wiring Configuration
| Sub-model | System Type | Wiring Configuration | Description |
| TPK-20-xxx/1+0(S) | TNS / TNC | Single-phase / 3-phase (no N) | Compact SPD for basic TNS/TNC applications |
| TPK-20-xxx/1+1(S) | TT | L-N + N-PE | TT system surge protection with N-PE discharge |
| TPK-20-xxx/2+0(S) | TNS | L + N | Suitable for 2-wire low-voltage TNS circuits |
| TPK-20-xxx/3+0(S) | TNC | L1 + L2 + L3 | Three-phase protection for TNC power systems |
| TPK-20-xxx/3+1(S) | TT | L1 + L2 + L3 + N + PE | High-capacity TT surge protection |
| TPK-20-xxx/4+0(S) | TNS | L1 + L2 + L3 + N | Industrial-grade 4-wire SPD for TNS |
