
Power Distribution Centers
154.0
132.2
138.0
R8.0
36.0
112.5
128.7
81.4
68.5
5.0
TPA SHOWN
INSTALLED
7.8 TYP.
52.0
(4) MOUNTING 
LOCATIONS 
USING M6 BOLTS
58.2
COVER
TETHER
SLOT
INTERLOCKS FOR MOUNTING 
MULTIPLE HWB60s TOGETHER
8.1 TYP.
HWB60-SEALED HARD-WIRED MODULES (MINI STYLE)
Specifications
Max Fuse Size:    30A
# of Cavities:    60
Compatible Relay Types:    280 footprint micro & mini
Mounting Torque:       6-8Nm using M6 bolts and hardware
Materials:       UL 94V-0 glass-filled thermoplastic with 
silicone gasket
Labels:       Module & cover options
Accessories:       Spare fuse and fuse puller holder; Cover 
tether; T PA
Mating Terminals and Seals:   Delphi Metri-Pack 280 Sealed Female
Wire Sizes:      0.35 - 5.0mm
2
Dimensions
Dimensions in mm (subject to change)
Description 
The HWB60 is a hard-wired module for use with 280 style 
components (i.e. mini-fuses, relays, diodes, resistors, etc.) It 
features 60 cavities creating a high density fuse module with a 
compact footprint. Without internal bussing, it allows the flexibility 
of custom circuitr y by the end user. Wires simply plug into the 
back of the module using sealed Delphi Metri-Pack Series 28 0 
tanged terminals.
Sealing in the cover and around the wires allow for use in extreme 
environments. Dovetail features on the sides of unit allow the user 
to stack multiple HWB60’s together to increase their circuit 
protection package. These same dovetails can also be used to 
attach an add-on component that holds a fuse puller and spare 
fuses. Cover tethers and TPAs (terminal position assurance locks) 
are also available.
Alternative component footprints may be available. Contact 
Littelfuse for more information.
Ratings
Part Number Description
PDM21001LXM
868-163 Base
873-029 Cover
901-315 Gasket
883-083 TPA
Complete Assembly (Base, Cover, 
Gasket, and 6 TPAs shipped bulk)
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