B40K385 EPCOS Inc, B40K385 Datasheet - Page 13

• Manufacturer Part Number: B40K385
• Description: VARISTOR BLOCK 385VRMS 40MM
• Manufacturer: EPCOS Inc
• Series: HighEr

Specifications of B40K385

• Varistor Voltage: 620V
• Current-surge: 40kA
• Number Of Circuits: 1
• Maximum Ac Volts: 385VAC
• Maximum Dc Volts: 505VDC
• Energy: 800J
• Package / Case: Chassis Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: B72240B 381K 1; B72240B0381K001; B72240B381K1

Derating curves
Maximum surge current i
For explanation of the derating curves refer to “General technical information”, section 1.8.1
SIOV-B32K130 … K150
i
SIOV-B32K230 … K460
Please read Cautions and warnings and
Important notes at the end of this document.
i
max
max
10
10
10
10
10
10
10
10
10
10
10
10
A
A
5
5
5
5
5
5
5
5
5
4
3
2
0
5
4
3
2
0
1
1
10
10
1
1
max
5
5
= f (t
10
10
r
, pulse train)
2
2
SIOV-B40K75
10
10
10
10
10
10
10
10
10
10
1x
10
1x
10
2
3
4
5
6
2
3
4
5
6
13
5
5
11/07
10
10
3
3
Block varistors
HighE series
t
t
r
r
5
5
VAR0089-N
VAR0088-F
t
t
i
i
µs
r
µs
r
max
max
10
10
4
4