Circular Connector Backshells

Circular connector backshells are components of a wiring system that attach to the cable side of a circular connector in order to provide robustness and ensure its integrity. They are typically separate from the connector head itself, and secure the cable to the connector via a clamp. 


Why are circular connector backshells needed?

Circular connector backshells help to protect the connector, and to safeguard the reliability of the cable and ultimately the entire system. They prevent the ingress of dirt, moisture and liquids into the connector head by providing a tight seal against the cable itself. In addition they act as an effective form of strain relief for the connector assembly, ensuring that the cable cannot be bent to an excessive angle, which could potentially damage it.


What are circular connector backshells used for?

Circular connector backshells are used to shield wire connection points of interconnecting cables and connectors. They may also be used to shield against electrical interference in a system by acting as a continuation of the cable ground sheath directly into the connector itself.


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Description Price For Use With Shell Size Body Orientation Gender Housing Material Spring Clip Size Thread Size IP Rating Length Number of Contacts Strain Relief Series CAD Drawing
RS Stock No. 709-9710
Mfr. Part No.207055-1
TWD192
Each
units
- - - - - - - - 36.83mm - - - -
RS Stock No. 873-1853
Mfr. Part No.97-3057-1012(621)
BrandAmphenol
TWD204
Each
units
Jacketed Cable, Wires Protected by Tubing 20, 22 Straight - - - 1-3/16 in - 18 - 23.55mm - - 97 -
RS Stock No. 220-7045
Mfr. Part No.UTG 12AC
BrandSouriau
TWD220
Each
units
- - - - - - - - 40mm - - - -
RS Stock No. 220-7039
Mfr. Part No.UTG 10AC
BrandSouriau
TWD156
Each
units
- - - - - - - - 40mm - - - -
RS Stock No. 510-1029
Mfr. Part No.UT0S12JCS
BrandSouriau
TWD642
Each
units
- - - - - - - - 74.5mm - - - -
RS Stock No. 873-1982
Mfr. Part No.97-3057-6
BrandAmphenol
TWD223
Each
units
Jacketed Cable, Wires Protected by Tubing 12SL, 14, 14S Straight - - - 3/4 in - 20 - 27.38mm - - 97 -
RS Stock No. 233-2646
Mfr. Part No.UTG14PG
BrandSouriau
TWD262
Each
units
- - - - - - - - 62mm - - - -
RS Stock No. 233-2624
Mfr. Part No.UTG10PG
BrandSouriau
TWD280
Each
units
- - - - - - - - 54mm - - - -
RS Stock No. 233-2630
Mfr. Part No.UTG12PG
BrandSouriau
TWD269
Each
units
- - - - - - - - 57mm - - - -
RS Stock No. 873-1932
Mfr. Part No.97-3057-16
BrandAmphenol
TWD270
Each
units
Jacketed Cable, Wires Protected by Tubing 24, 28 Straight - - - 1-7/16 in - 18 - 33.32mm - - 97 -
RS Stock No. 873-1752
Mfr. Part No.97-3055-18-10
BrandAmphenol
TWD241
Each
units
97 Series Standard Cylindrical Connector 18 Straight Male - - 1 in - 20 - 22.23mm 1 - 97 -
RS Stock No. 709-3523
Mfr. Part No.TM178SR-45
BrandToughcon
TWD295
Each
units
- - - - - - - - 36.6mm - - - -
RS Stock No. 175-4534
Mfr. Part No.84040008
BrandSouriau
TWD2,191
Each
units
840 Series 4 Angled, Straight - Plastic - - IP65 43.5 mm, 55 mm - - 840 -
RS Stock No. 752-5773
Mfr. Part No.044-8597-002
BrandITT Cannon
TWD179
Each
units
APD Series - Straight - PBT - M25 x 1.5 IP67, IP69K 30mm - - 044 -
RS Stock No. 233-2652
Mfr. Part No.UTG16PG
BrandSouriau
TWD311
Each
units
- - - - - - - - 68mm - - - -
RS Stock No. 690-4028
Mfr. Part No.C016 G11 061 E10 V
BrandAmphenol
TWD160
Each (In a Pack of 5)
units
- - - - - - - - - - Yes Eco-Mate -
RS Stock No. 760-0569
Mfr. Part No.ABAC0703W09
TWD1,093
Each
units
MIL-DTL-38999 Connector Series III 09 Right Angle - Aluminium - - IP67 32.79mm - - ABAC -
RS Stock No. 873-1856
Mfr. Part No.97-3057-1012(676)
BrandAmphenol
TWD179
Each
units
Jacketed Cable, Wires Protected by Tubing 20, 22 Straight - - - 1-3/16 in - 18 - 23.55mm - - 97 -
RS Stock No. 873-1844
Mfr. Part No.97-3057-1012
BrandAmphenol
TWD156
Each
units
Jacketed Cable, Wires Protected by Tubing 20, 22 Straight - - - 1-3/16 in - 18 - 23.55mm - - 97 -
RS Stock No. 175-3806
Mfr. Part No.CL103000
BrandSouriau
TWD67
Each
units
- - - - - - - - - - - - 3D CAD Model