CHỐNG SÉT LAN TRUYỀN AC 3 PHA (3+0)

High energy MOV and GDT

Technical data

KSB.BR25-U275.ds-3/0

KSB.BR25-U440.ds-3/0

Max. continuous operating voltage

U_c 

275 V AC

440 V AC

Nominal discharge current (8/20µs)

I_n 

25 kA

Max. discharge current (8/20µs)

I_max 

100 kA

Lightning impulse current (10/350µs)

I_imp 

25 kA

Total lightning impulse current (10/350µs)

I_total

75 kA

Specific Energy

W/R

156 kJ/Ω

Charge

Q

12.5 As

Voltage protection level

U_p

< 1.5 kV

< 1.9 kV

Response time

t_A

< 25 ns

Back-Up Fuse (if mains > 250 A)

250 A gL/gG

Short-Circuit Current Rating (AC)

I_SCCR

50 kA

TOV withstand 5s

U_T

438 V AC

585 V AC

Temperature range

ϑ

-40°C to  + 85°C

Conductor Cross Section (max)

35mm² ( soild) / 25mm² ( stranded)

Mounting

DIN rail 35mm

Degree of protection

IP 20

Housing material

Thempolastic

Thermal Protection

Yes/ No

Fault Indication

Red flag/No

Remote contact

Yes