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
RS Stock No. 531-548
Mfr. Part No.PX0801
BrandBulgin
€3.61
Each
units
- - - - - - - - 61.5mm - - -
RS Stock No. 425-838
Mfr. Part No.2428-011-2405
BrandDeutsch
€2.44
Each
units
HDP20 Series 24 Right Angle - Thermoplastic - - IP67 - - Yes L017
RS Stock No. 709-3747
Mfr. Part No.TT178SR-45
BrandToughcon
€6.28
Each
units
- - - - - - - - 35.6mm - - -
RS Stock No. 263-0221
BrandPMA
€9.01
Each
units
QM Range Connector 20 - Female Nylon - UNEF 1-3/16-18 - - 28 - BFI
RS Stock No. 190-3915
Mfr. Part No.2428-011-2405
BrandDeutsch
€1.93
Each (In a Box of 100)
units
HDP20 Series 24 Right Angle - Thermoplastic - - IP67 - - Yes L017
RS Stock No. 241-1301
Mfr. Part No.91D1-10-05-1-ZB
BrandPolamco
€34.12
Each
units
MIL-DTL-26482 Series I, PATT 105, PATT 603 10 Straight - Aluminium Alloy 1 UNEF 9/16-24 - 34mm - - 91
RS Stock No. 241-1294
Mfr. Part No.91D1-08-04-1-ZB
BrandPolamco
€37.34
Each
units
MIL-DTL-26482 Series I, PATT 105, PATT 603 8 Straight - Aluminium Alloy 1 UNEF 7/16-28 - 34mm - - 91
RS Stock No. 575-743
Mfr. Part No.PX0799
BrandBulgin
€4.07
Each
units
- - - - - - - - 50mm - - -
RS Stock No. 104-503
Mfr. Part No.91D1-12-06-1-ZB
BrandPolamco
€43.04
Each
units
62 GB Series, AB05 Series, MIL-C 26482 Connector 12 Straight - Metal 1 UNEF 11/16-24 - - - - 1
RS Stock No. 689-8828
Mfr. Part No.BK4SRL10059XY
BrandAmphenol
€38.65
Each
units
MIL-C 38999 Connector 11 Straight - Zinc Plated Aluminium - - - 31.75mm - - BK4
RS Stock No. 873-1727
Mfr. Part No.97-3055-121-22002
BrandAmphenol
€43.72
Each
units
97 Series Standard Cylindrical Connector 20, 22 Straight Male - - 1-3/16 in - 18 (C Thread), NPT 1/2 in (M Thread) - 22.23mm 1 - 97
RS Stock No. 510-0981
Mfr. Part No.UT014AC
BrandSouriau
€20.80
Each
units
UTO Series High Density Shielded Connector 14 Straight Female Metal - - IP67, IP68, IP69K 34mm - Yes UTO
RS Stock No. 689-8888
Mfr. Part No.BS1SRN12999XY
BrandAmphenol
€15.91
Each
units
Group N Connector 12 Straight - Aluminium - - - 31.75mm - Yes BS1
RS Stock No. 912-0633
Mfr. Part No.UT0S12JCSL
BrandSouriau
€15.93
Each
units
UT0 Series Connectors 12 Straight - Zinc Alloy - 11/16 in - 24 IP68 61.5mm - Yes UT0
RS Stock No. 689-8777
Mfr. Part No.BS1SRL12999XY
BrandAmphenol
€25.71
Each
units
Group L Connector 12 Straight - Aluminium - - - 33.27mm - Yes BS1
RS Stock No. 474-603
Mfr. Part No.192991-0516/RS474603.0000
BrandITT Cannon
€32.18
Each
units
QM Range Connector - - Female Nylon - - - 67mm 23 - 192
RS Stock No. 823-6288
Mfr. Part No.AIA-5003-11-00-00-10-AA-10
BrandAmphenol
€52.48
Each
units
MIL-DTL-38999 Black Zinc Connectors 11 Straight - Aluminium Alloy - M15 x 1 - 1.431in - - 5003
RS Stock No. 190-3475
Mfr. Part No.058-8578-103
BrandITT Cannon
€1.121
Each (In a Bag of 100)
units
APD Series - Right Angle - PBT - - IP67, IP69K - - - 058
RS Stock No. 689-8780
Mfr. Part No.BS1ARL08999XY
BrandAmphenol
€29.73
Each
units
Group L Connector 8 Right Angle - Aluminium - - - 33.27mm - Yes BS1
RS Stock No. 691-6734
Mfr. Part No.1330 1 PES2
BrandAmphenol
€52.23
Each
units
Connector 1 Straight - Aluminium Alloy - - IP67 42mm - Yes ECTA 133
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