YBA1‑C40/M+G

YBA1-C40/M+G Pluggable Multi-Pole Surge Protective Device

Installation Location

Installed in building main distribution boards, power incoming cabinets or sub-distribution boards.

Function Description

It is mainYBA used to withstand lightning current surges and induced lightning surge currents, suitable for distribution sites requiring enhanced lightning energy dissipation.

Key Parameter

Nominal waveforms: 10/350μs and 8/20μs; Impulse Discharge Current Iimp=12.5kA, Max. Discharge Current Imax=40kA.

Application

Suitable for sites with external lightning protection system and risk of direct lightning current intrusion, requiring higher lightning current carrying capacity.

Parameter (EN)	Spec
Location of Use	Main Distribution Boards
Network Systems	TN-S
Mode of Protection	L-PE, N-PE
Surge Ratings	limp = up to 8 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 61643-11:2025; EN 61643-11:2025; UL 1449 4th Edition

Technical Data — IEC Electrical

Parameter	Spec
Nominal AC Voltage (50/60Hz) Uo/Un	120V / 230V / 420V
Max. Continuous Operating Voltage (AC) Uc	150V / 275V / 320V / 385V / 420V
Nominal Discharge Current (8/20 μs) In	20 kA
Max. Discharge Current (8/20 μs) Imax	40 kA
Impulse Discharge Current (10/350 μs) Iimp	8 kA
Specific Energy W/R	39 kJ/Ω / 25 kJ/Ω
Charge Q	6.25 As / 5 As
Voltage Protection Level Up	1200V / 1400V / 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