YBA1‑12.5B/4(S)
Pluggable Multi-Pole Surge Protective Device
Installation Location
Installed in the main distribution boards of buildings or power inlet where lightning current may enter.
Function Description
It is mainYBA used to withstand lightning current surges.
Key Parameter
Nominal waveform: 10/350 μs.
Application
Suitable for sites with external lightning protection system and risk of direct lightning current intrusion.
| Parameter | Spec |
|---|---|
| Location of Use | Main Distribution Boards |
| Network Systems | TN-S |
| Mode of Protection | L-PE, N-PE |
| Surge Ratings | Iimp = up to 12.5 kA (10/350μs); In = up to 20 kA (8/20μs) |
| IEC/EN/UL Category | Class I+II / Type 1+2 / Type 1CA |
| Protective Elements | High Energy MOV |
| Housing | Pluggable Design |
| Compliance | IEC 61643-11:2011; EN 61643-11:2012; UL 1449 4th Edition |
Technical Data — IEC Electrical
| Parameter | Spec |
|---|---|
| Nominal AC Voltage Uo/Un | 120V / 230V / 277V / 380V / 440V |
| 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 | 50 kA |
| Impulse Discharge Current (10/350 μs) Iimp | 12.5 kA |
| Specific Energy W/R | 39 kJ/Ω / 25 kJ/Ω |
| Charge Q | 6.25 As / 5 As |
| Voltage Protection Level Up | 1000V / 1500V / 2000V |
| Response Time tA | < 25 ns |
| Back-Up Fuse (max) | 315 A / 250 A gG |
| Short-Circuit Current Rating IsccR | 25 kA / 50 kA |
| TOV Withstand 5s UT | 180V / 335V / 580V |
| TOV 120min Mode | Safe Fail |
Technical Data — UL Electrical
| Parameter | Spec |
|---|---|
| Max. Continuous Operating Voltage (AC) MCOV | 150V / 275V / 320V / 385V / 440V |
| Voltage Protection Rating VPR | 600V / 900V / 1200V / 1350V / 1500V |
| Nominal Discharge Current (8/20 μs) In | 20 kA |
| Short-Circuit Current Rating SCCR | 200 kA / 150 kA |
Internal Settings
Size and Packaging
Connection diagram
