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. 912-0642
Mfr. Part No.UT0S14JCSL
SGD31.18
Each
units
UT0 Series Connectors 14 Straight - Zinc Alloy - 13/16 in - 20 IP68 66.5mm - Yes UT0
RS Stock No. 873-1831
Mfr. Part No.97-3057-1010
SGD9.39
Each
units
Jacketed Cable, Wires Protected by Tubing 18 Straight - - - 1 in - 20 - 23.37mm - - 97
RS Stock No. 873-1976
Mfr. Part No.97-3057-4
SGD7.55
Each
units
Jacketed Cable, Wires Protected by Tubing 10SL, 12S Straight - - - 5/8 in - 24 - 25.4mm - - 97
RS Stock No. 198-7506
Mfr. Part No.BK4SRL20149SN
SGD71.57
Each
units
38999 III 20 Straight Female Aluminium Alloy - - - - - No BK4
New
RS Stock No. 206-7563
Mfr. Part No.M85049/69-15A
SGD18.00
Each
units
38999 III 15 Straight - Aluminium Alloy - - - - - No MIL
RS Stock No. 709-3719
Mfr. Part No.TT238GA-M20
BrandToughcon
SGD27.77
Each
units
- - - - - - - - 42mm - - -
RS Stock No. 175-3749
Mfr. Part No.CL111101
SGD18.66
Each
units
- - - - - - - - - - - -
New
RS Stock No. 206-7583
Mfr. Part No.M85049/69-25A
SGD23.96
Each
units
38999 III 25 Straight - Aluminium Alloy - - - - - No MIL
RS Stock No. 626-9205
Mfr. Part No.JL05-18EB3B-(11)-RK
BrandJAE
SGD28.30
Each
units
- - - - - - - - 71.3mm - - -
New
RS Stock No. 206-7561
Mfr. Part No.M85049/69-13W
SGD18.96
Each
units
38999 III 13 Straight - Aluminium Alloy - - - - - No MIL
RS Stock No. 198-7543
Mfr. Part No.BK4SRN18129SY-B1
SGD92.60
Each
units
38999 III 18 Straight Female Aluminium Alloy - - - - - No BK4
New
RS Stock No. 206-7582
Mfr. Part No.M85049/69-23Z
SGD31.71
Each
units
38999 III 23 Straight - Aluminium Alloy - - - - - No MIL
New
RS Stock No. 206-7568
Mfr. Part No.M85049/69-17A
SGD18.71
Each
units
38999 III 17 Straight - Aluminium Alloy - - - - - No MIL
RS Stock No. 198-7518
Mfr. Part No.BK4SRL22169SZN-B1
SGD90.59
Each
units
38999 III 22 Straight Female Aluminium Alloy - - - - - No BK4
New
RS Stock No. 206-7529
Mfr. Part No.M85049/38-19N
SGD16.72
Each
units
38999 III 19 Straight - Aluminium Alloy - - - - - Yes MIL
RS Stock No. 689-8935
Mfr. Part No.BK4SRN08049XY
SGD46.61
Each
units
MIL-C 26482 Connector 08 Straight - Zinc Plated Aluminium - - - 31.75mm - - BK4
New
RS Stock No. 206-7533
Mfr. Part No.M85049/38-21W
SGD19.02
Each
units
38999 III 21 Straight - Aluminium Alloy - - - - - Yes MIL
RS Stock No. 873-1761
Mfr. Part No.97-3055-22-12
SGD17.55
Each
units
97 Series Standard Cylindrical Connector 20, 22 Straight Male - - 1-3/16 in - 18 - 22.23mm 1 - 97
RS Stock No. 873-1604
Mfr. Part No.97-282-14S-5
SGD30.26
Each
units
97 Series Standard Cylindrical Connector 14S - - Aluminium Alloy - - - - 5 - 97
New
RS Stock No. 206-7608
Mfr. Part No.M85049/88-21N03
SGD63.03
Each
units
38999 III 21 Straight - Aluminium Alloy - - - - - No MIL