Maximum panel thickness, mounting flange in front of panel
Assumes Pollution Degree 3 per UL 840:
Conductive pollution, or dry, nonconductive pollution that
becomes conductive due to condensation that is expected.
Maximum panel thickness
not including any sealing gaskets.
System Voltage
600V
480
277
240
120
Fuseholder
HPC-D
mm Inches mm Inches mm Inches mm Inches mm Inches
**
**
0.87 1/32” 5.14 3/16” 5.69 7/32” 7.17 9/32”
HPC-D
600
(1)No UL Recognition
(3)20A max when used with quick-connect terminals.
Replacement knob -BK/9987SA
Thicker panels may be used if fuse holder load terminal is fully insulated, using a
UL recognized (VW-1) insulative heat-shrink tubing, or if anticipated environment
is of Pollution Degree 1 or 2, or if panel is nonconductive.
Pollution Degree 2- Normally, only nonconductive pollution. However, a temporary
conductivity caused by condensation may be expected.
Pollution Degree 1- No pollution or only dry, nonconductive pollution.
The pollution has no influence.
Maximum panel thickness, mounting flange behind the panel:
5.08mm/0.200” (flush to knob collar)
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000Vac, 75-1500Vdc). Refer to Data Sheet: 8002 or contact
Bussmann Application Engineering at 314-527-1270 for more information.
General Information:
• Screw-type knob.
• Supplied with “O”-ring and panel gasket.
• Military version designated FHN23W.
• Do not put tension on line (rear) terminal.
The only controlled copy of this Data Sheet is the electronic read-only version located on the Bussmann Network Drive. All other copies of this document are by definition uncontrolled. This bulletin is
intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Bussmann reserves the right, without notice, to change
design or construction of any products and to discontinue or limit distribution of any products. Bussmann also reserves the right to change or update, without notice, any technical information con-
tained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.
