Adam Dickson

Review of Deutsche HDP20 sealing range

For Deutsche HDP20 24-47 fittings we are using modified E seals (the only E-seal choice available)

For Deutsche HDP20 24-35 fittings we are using normal E seals (the only E-seal choice available)

For Deutsche HDP20 24-33 fittings we are using N seals (E seals not available)

See page 14 of

DDEController

Size 20 contacts 16-22AWG

Allowed cable diameters

  • 1.02-2.41mm for N, T and normal E seals
  • 1.01-2.10mm for modified E seals


Thin walled tefzel M22759/18

  • M22759/18-16 1.73-1.83mm
  • M22759/18-18 1.50-1.60mm
  • M22759/18-20 1.24-1.35mm
  • M22759/18-22 1.04-1.14mm


  • N, T and normal E seals: 16-22AWG ok
  • modified E seals: 16-22AWG ok


Thick walled tefzel M22759/16

  • M22759/16-16 1.96-2.06mm
  • M22759/16-18 1.75-1.85mm
  • M22759/16-20 1.47-1.57mm
  • M22759/16-22 1.27-1.37mm


  •  N, T and normal E seals: 16-22AWG ok
  • modified E seals: 16-22AWG ok


So the HDP20 24-33 connector which has size 20 contacts only, used with thick and thin walled tefzel, can be chosed with the N option, which happens to be the only one available


Size 16 contacts 14-20AWG

Allowed cable diameters

  • 2.54-3.40mm for N seals,
  • 2.23-3.40mm for T seal,
  • 2.24-2.69mm for modified T seal,
  • 1.35-3.05mm for normal E seals.
  • 1.35-2.62mm for modified E seals,


There are no size 16 contacts in the 24-33 connector above, so the N seal dimension range is not relevant

Thin walled tefzel M22759/18

  • M22759/18-14 2.11-2.21mm
  • M22759/18-16 1.73-1.83mm
  • M22759/18-18 1.50-1.60mm
  • M22759/18-20 1.24-1.35mm


  • N seals: none ok
  • T seals: none ok
  • modified T seals: none ok
  • E seals: 14-18AWG ok, 20 not ok
  • modified E seals: 14-18AWG ok, 20 not ok


Thick walled tefzel M22759/16

  • M22759/16-14 2.31-2.41mm
  • M22759/16-16 1.96-2.06mm
  • M22759/16-18 1.75-1.85mm
  • M22759/16-20 1.47-1.57mm


  • N seals: none ok
  • T seals: 14AWG ok, 16-20AWG not ok
  • modified T seals: 14AWG ok, 16-20AWG not ok
  • E seals: 14-20AWG ok
  • modified E seals: 14-20AWG ok


So the HDP20 24-47 and 24-35 connectors which have both size 20 and size 16 contacts, used with both thick and thin walled tefzel must be chosen with the E option (modified E for the 24-47)


Size 12 contacts 10-14AWG

Allowed cable diameters

  • 3.40-4.32mm for N seal,
  • 2.87-4.32mm for T seal,
  • 2.46-4.01mm for E seal and modified E seal

Thin walled tefzel M22759/18

  • M22759/18-14 2.11-2.21mm
  • M22759/18-12 2.64-2.80mm
  • M22759/18-10 3.33-3.48mm


  • N seals: 10-14AWG not ok
  • T seals: 10AWG ok, 14-12AWG not ok
  • E, modified E: 10-12AWG ok, 14AWG not ok


Thick walled tefzel M22759/16

  • M22759/16-14 2.31-2.41mm
  • M22759/16-12 2.82-2.97mm
  • M22759/16-10 3.45-3.61mm


  • N seals: 10AWG ok, 12-14AWG not ok
  • T seals: 10AWG ok, 12-14AWG not ok
  • E, modified E: 10-12AWG ok, 14AWG not ok


So the HDP20 18-8 connector which has size 12 contacts must be chosen in the E option (only used with thick walled tefzel)


If a cable is marked "not ok" some heat-shrink sheathing is required to bring it into range

This post is from Adam Dickson