CHỐNG SÉT LAN TRUYỀN AC 1 PHA (1PH +N)

High energy MOV and GDT

Technical data

KSB.BR25-U275.ds-1/1

KSB.BR25-U440.ds-1/1

Max. continuous operating voltage

U_c (L-N)

U_c (L-PE)

275 V AC

440 V AC

255 V AC

Nominal discharge current (8/20µs)

I_n (L-N/N-PE)

25 kA/50 kA

Max. discharge current (8/20µs)

I_max (L-N/N-PE)

100 kA/100 kA

Lightning impulse current (10/350µs)

I_imp (L-N/N-PE)

25 kA/50 kA

Total lightning impulse current (10/350µs)

I_total

50 kA

Specific Energy

W/R

156 kJ/Ω / 625 kJ/Ω

Charge

Q

12.5 As/25 As

Voltage protection level

U_p (L-N)

U_p (N-PE)

< 1.5 kV

< 1.9 kV

< 1.5 kV

Follow current Interrupt Rating

I_n

100A_rms

Response time

t_A (L-N/N-PE)

< 25 ns/< 100 ns

Back-Up Fuse (if mains > 250 A)

250 A gL/gG

Short-Circuit Current Rating (AC)

I_SCCR

50 kA

TOV withstand 5s

TOV withstand 200ms

U_T (L-N)

U_T (L-PE)

438 V AC

585 V AC

1200 V / 300 A

Temperature range

ϑ

-40°C to  + 80°C

Conductor Cross Section (max)

35mm² ( soild) / 25mm² ( stranded)

Mounting

DIN rail 35mm

Degree of protection

IP 20

Thermal Protection

(L-N)/(N-PE)

Yes/ No

Fault Indication

(L-N)/(N-PE)

Red flag/No

Remote contact

Yes