HWB12 SERIES
58 V 135 A Hard-Wired Waterproof DC Power Distribution Box
for MINI® Fuses, Circuit Breakers & Relays
Specifications
Max Voltage Rating Continuous: 58 VDC
Max Voltage Rating
58 VDC
Max Total Continuous Current:
30 A (per circuit @75% of the fuse
rating) 135 A Total
PDM32001ZXM
Operating Temp Range:
Ingress Protection:
Input Terminals:
Fuse Type:
-40 °C to + 105 °C
IP67
TE Connectivity MCP Series
MINI Fuse, MINI Circuit Breaker,
4-Pin SPST and 5-Pin SPDT Relays
Description
Applications
• WorkTrucks and Specialty
Equipment
Ideal for use as the main unit on small vehicles or for accessory
circuits and overflow circuits from your main power distribution
module (PDM), the compact HWB12 Series 58 V 135 A Hard-
Wired Waterproof DC Power Distribution Box accepts MINI®
fuses, MINI® circuit breakers, 4-pin single-pole, single-throw
(SPST) relays, and 5-pin single-pole, double-throw (SPDT) relays
and MCASE™ fuses (adapter required; sold separately).
• Oil and Gas Drilling
Equipment
• Emergency Vehicles
• Marine Vehicles and
Equipment
• Construction Site Support
Equipment
Features and Benefits
This hard-wired PDM allows you to customize your own
circuitry utilizing direct wire-to-component connections which
are crimped to the wire harness with grommets to seal the
bottom of the module. Terminal position assurance locks offer
secondary protection to keep the wires in place. The HWB12
series usesTYCO MCP terminals, cable seals, and cavity plugs.
• Holds six MINI® fuses or a combination of MINI® fuses,
MINI® circuit breakers, 4-pin SPST relays, and 5-pin
SPDT relays and MCASE™ fuses (adapter required; sold
separately)
• 135 A maximum total continuous current
Available with a clear or black cover with a gasket, this dust-
tight, waterproof power distribution box carries an IP67 rating,
and it features AssureLatch™ positive-sealing latches that keep
the cover securely in place. The clear cover option lets you
easily see the condition of the installed fuses, and the black
cover offers a full UL 94 V-0 flammability rating for applications
that require it. An available tether (sold separately) helps
prevent loss of the cover during service.
• Clear or black cover is sealed with a gasket to an IP67
rating to deliver a waterproof power distribution box that
is safeguarded from dust, moisture, and debris
• AssureLatch™ positive-sealing latches keep the cover
securely in place while allowing for fast service
• Thermoplastic base with a UL 94 V-0 flammability rating
• Terminal position assurance locks help prevent
disconnection of wires due to vibration and accidental
snagging
Web Resources
Download 2D print, installation guide and technical resources
at: littelfuse.com/HWB12
• Optional foam insert available for relay retention
• High-temperature gore vents allow heat and pressure to
be released while maintaining IP ratings
Ordering Information
MOUNTING
HOLE
MOUNTING
METHOD
Without mounting
bracket
Without mounting
bracket
Mounting bracket
ø6.5
PART NUMBER
DESCRIPTION
HOUSING
Six-Component MINI® Hard-Wired Waterproof DC Power Distribution
Box with Clear Cover
Black Thermoplastic Base 94-V0,
Clear Cover 94-V2
Black Thermoplastic Base 94-V0,
Clear Cover 94-V2
Black Thermoplastic Base
94-V0, Clear Cover 94-V0
Black Thermoplastic Base
94-V0, Clear Cover 94-V0
PDM33001ZXM
-
Six-Component MINI® Hard-Wired Waterproof DC Power Distribution
Box with Black Cover
PDM33002ZXM
PDM33003ZXM
PDM33004ZXM
868-964
-
Six-Component MINI® Hard-Wired Waterproof Power Distribution
Box with Clear Cover & Straight Bracket
6.5
6.5
-
Six-Component MINI® Hard-Wired Waterproof Power Distribution
Box with Black Cover & Straight Bracket
Mounting bracket
ø6.5
90° Mounting Bracket for HWB6, HWB12, and HWB18 Hard-Wired
Power Distribution Boxes
30° Mounting Bracket for HWB6, HWB12, and HWB18 Hard-Wired
Power Distribution Boxes
-
-
-
-
868-068
-
883-087
901-326
901-327
Terminal Position Assurance (TPA) Locks for HWB12 Series
Gasket for HWB12 Hard-Wired Power Distribution Box
Foam Insert for Relay Retention
-
-
-
-
-
-
-
-
-
Littelfuse.com
© 2023 Littelfuse, Inc.
052323-A
1