YBA‑C40/4
YBA-C40/4 Pluggable Four-Pole Surge Protective Device
Installation Location
Installed in building main distribution boards, power incoming cabinets or sub-distribution boards.
Function Description
It is mainly used to withstand induced lightning surge currents and provide power lightning protection for downstream three-phase distribution equipment.
Key Parameter
Nominal waveform: 8/20μs, Max. Discharge Current Imax=40kA.
Application
Suitable for three-phase distribution sites with TN-S system, and building distribution circuits where induced lightning surge risk exists
| Parameter | Spec |
|---|---|
| Location of Use | Main Distribution Boards |
| Network Systems | TN-S |
| Mode of Protection | L-PE, N-PE |
| Surge Ratings | In = up to 20 kA (8/20μs) |
| IEC/EN/UL Category | Class II / Type 2 / Type 1CA |
| Protective Elements | High Energy MOV |
| Housing | Pluggable Design |
| Compliance | IEC 61643-11:2025; EN 61643-11:2025 |
Technical Data
| Parameter | Spec |
|---|---|
| Nominal AC Voltage (50/60Hz) Uo/Un | 120V / 230V / 400V |
| Max. Continuous Operating Voltage (AC) Uc | 150V / 275V / 320V / 385V / 440V |
| Nominal Discharge Current (8/20 μs) In | 20 kA |
| Max. Discharge Current (8/20 μs) Imax | 40 kA |
| Voltage Protection Level Up | 1000V / 1400V / 1500V / 1800V |
| Response Time tA | < 25 ns |
| Back-Up Fuse (max) | 125 A gL/gG |
| Short-Circuit Current Rating IsccR | 25 kA / 50 kA |
| Packaging Dimensions (HxWxL) | 270 × 230 × 330 mm |
| Minimum Order Quantity | 72 pcs |
Internal Settings
Size and Packaging
Connection diagram
