Standards and certifications
■ IEC/EN 61643-11 compliant
■ CE, RoHS certified
■ Designed for Class I+II surge protection
Applications
■ Secondary surge protection in main distribution panels
■ Industrial control cabinets with HVAC, drives, and PLCs
■ Telecommunication hubs and power transfer systems
■ IT infrastructure and smart building environments
■ Sensitive systems including UPS, security, and medical devices
TPK-12.5 Series – Wiring Configuration
| Sub-model | System Type | Wiring Configuration | Description |
| TPK-12.5-xxx/1+0(S) | TNS / TNC | Single-phase / 3-phase (no N) | Standard protection for L-N or L-L systems |
| TPK-12.5-xxx/1+1(S) | TT | L-N + N-PE | TT system protection with neutral-earth discharge |
| TPK-12.5-xxx/2+0(S) | TNS | L + N | Dual-line protection for TNS systems |
| TPK-12.5-xxx/3+0(S) | TNC | L1 + L2 + L3 | TNC system with 3-phase protection |
| TPK-12.5-xxx/3+1(S) | TT | L1 + L2 + L3 + N + PE | Full TT protection including neutral and earth |
| TPK-12.5-xxx/4+0(S) | TNS | L1 + L2 + L3 + N | Standard 4-wire TNS setup |
