HWB18 Series - 18 Way MINI Power Distribution Module

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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.


  • The elimination of internal bussing allows the user to customize their own circuitry with direct wire-to-component connections.
  • User can install any mini (280 style) circuit protection component.
  • Compact size. PDM is perfect fit for accessory circuits, overflow circuits from main PDM, or as a main module on smaller vehicles.
  • IP67 sealed units can be installed virtually anywhere on the vehicle. HWB18 stands up to road splash and salt spray and gives robust protection to devices.
  • TPAs (terminal position assurance locks) give secondary locking protection of the wire leads, which aid in prevention of leads from being pulled out. TPAs snap onto the back of the HWB18 after wires are installed, and do not interfere with the cable seals needed to ensure IP protection.
  • Easy to connect. Wires plug into the back of the unit using industry-standard Delphi Metri-Pack Series 280 tanged terminals.

Part Numbers:

Part Number Cover TPA Gasket Foam  Mounting Bracket
PDM31001ZXM   30°
 PDM31004ZXM •  •   •  

Access specifications, certifications, check availability and order parts below

Catalog #CertificatesFuse TypeCurrent Rating (Continuous per Circuit) in AmpsCurrent Rating (Continuous) in AmpsIngress ProtectionNumber of CavitiesDimensionsTemperature Maximum CelsiusTemperature Minimum CelsiusMounting MethodSamplesCompare
868-9652.7021 H x 1.3421 W x 1.834 L in.
873-0323.1625 H x 1.151 W x 2.325 L in.
883-0841.447 H x 0.3265 W x 0.635 L in.
30A100IP67183.155 H x 2.8325 W x 2.613 L in. (60 mm)85-40Mounting Bracket IncludedOrder
30A100IP67183.1625 H x 1.8315 W x 2.6315 L in. (60 mm)85-40Mounting Bracket IncludedOrder
30A100IP67182.673 H x 1.835 W x 3.1585 L in. (60 mm)85-40Mounting Bracket IncludedOrder
30A100IP67183.1605 H x 1.8345 W x 2.6145 L in. (60 mm)85-40Mounting Bracket IncludedOrder
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
PDM31001ZXM HWB18 WITH TPAs & BRACKETS BULK RoHS No 02/20/2018 PbFree No 02/20/2018 CoC_RoHS10_PDM31001ZXM REACH219_Declaration_PDM31001ZXM Yes
Does not Contain
PDM31002ZXM HWB18 WITH TPAs BULK RoHS No 08/31/2018 PbFree No 08/31/2018 CoC_RoHS10_PDM31002ZXM REACH209_Declaration_PDM31002ZXM
Does not Contain
PDM31004ZXM HWB18 Assembly with Foam RoHS No 01/11/2019 PbFree No 01/11/2019 CoC_RoHS10_PDM31004ZXM REACH205_Declaration_PDM31004ZXM
Does not Contain
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