B40K320 EPCOS Inc, B40K320 Datasheet - Page 17
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B40K320
Manufacturer Part Number
B40K320
Description
VARISTOR BLOCK 320VRMS 40MM
Manufacturer
EPCOS Inc
Series
HighEr
Datasheet
1.B32K550.pdf
(20 pages)
Specifications of B40K320
Varistor Voltage
510V
Current-surge
40kA
Number Of Circuits
1
Maximum Ac Volts
320VAC
Maximum Dc Volts
560VDC
Energy
640J
Package / Case
Chassis Mount
Technology
Metal Oxide
Capacitance Value
2300pF
Clamping Current
300A
Clamping Voltage
840V
Lead Style
Screw
Ac Voltage Rating (max)
320VAC
Dc Voltage Rating (max)
420VDC
Operating Temp Range
-40C to 85C
Mounting
Bolt-Down
Surge Current (max)
40000A
Lead Spacing
24mm
Product Length (mm)
60mm
Product Depth (mm)
14mm
Product Height (mm)
55mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
B72240B 321K 1
B72240B0321K001
B72240B321K1
B72240B0321K001
B72240B321K1
Derating curves
Maximum surge current i
For explanation of the derating curves refer to “General technical information”, section 1.8.1
i
SIOV-B60K550 … K1000
SIOV-B80K130 … K1100
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
5
5
5
5
A
5
5
5
5
5
4
3
2
0
1
5
4
3
0
10
2
1
10
1
1
max
5
5
= f (t
10
10
r
, pulse train)
2
2
10
10
10
10
10
10
10
10
10
10
1x
10
1x
10
2
3
4
5
6
2
3
4
5
6
17
5
5
11/07
10
10
3
3
Block varistors
HighE series
t
t
r
r
5
5
VAR0096-6
VAR0069-9
t
t
i
i
µs
r
µs
r
max
max
10
10
4
4