B40K320 EPCOS Inc, B40K320 Datasheet - Page 2

• Manufacturer Part Number: B40K320
• Description: VARISTOR BLOCK 320VRMS 40MM
• Manufacturer: EPCOS Inc
• Series: HighEr

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

Construction
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Features
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Approvals
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Delivery mode
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General technical data
Climatic category
Operating temperature
Storage temperature
Electric strength
Insulation resistance
Response time
Max. torque
Please read Cautions and warnings and
Important notes at the end of this document.
Block varistors
HighE series
B32/B40
B60/B80
Disk-shaped varistor element,
potted in plastic housing
Housing and potting flame-retardant to UL 94 V-0
Screw terminals M4 (SIOV-B32 … 40)
Screw terminals M5 (SIOV-B60 … 80)
Heavy-duty varistors (surge current capability up to 100 kA)
Wide operating voltage range 75 … 1100 V
SIOV-B40 also available without housing (LS40 series)
PSpice models
UL
CSA (≥ K130)
Cardboard box
to IEC 60068-1
to CECC 42 000
to CECC 42 000
to CECC 42 000
RMS
2
11/07
40/85/56
– 40 … + 85
– 40 … +110
≥2.5
≥10
<25
1.0
2.5
°C
°C
kV
MΩ
ns
Nm
Nm
RMS