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. 873-1799
Mfr. Part No.97-3057-1004(621)
BrandAmphenol
SGD13.88
Each
units
Jacketed Cable, Wires Protected by Tubing 10SL, 12S Straight - - - 5/8 in - 24 - 20.19mm - - 97
RS Stock No. 198-7507
Mfr. Part No.BK4SRL20149SN-B1
BrandAmphenol
SGD103.36
Each
units
38999 III 20 Straight Female Aluminium Alloy - - - - - No BK4
RS Stock No. 709-3759
Mfr. Part No.TT238SR-112
BrandToughcon
SGD15.62
Each
units
- - - - - - - - 41.9mm - - -
RS Stock No. 510-1057
Mfr. Part No.UT0S16JCS
BrandSouriau
SGD39.94
Each
units
- - - - - - - - 83.5mm - - -
RS Stock No. 175-4534
Mfr. Part No.84040008
BrandSouriau
SGD139.39
Each
units
840 Series 4 Angled, Straight - Plastic - - IP65 43.5 mm, 55 mm - - 840
RS Stock No. 190-3473
Mfr. Part No.058-8578-100
BrandITT Cannon
SGD2.396
Each (In a Bag of 100)
units
APD Series - Straight - PBT - - IP67, IP69K 35.8mm - - 058
RS Stock No. 873-1636
Mfr. Part No.97-282-28-16
BrandAmphenol
SGD36.474
Each (In a Pack of 36)
units
97 Series Standard Cylindrical Connector 28 - - Aluminium Alloy - - - - 20 - 97
RS Stock No. 873-1907
Mfr. Part No.97-3057-1024-1(676)
BrandAmphenol
SGD26.353
Each (In a Pack of 50)
units
Jacketed Cable, Wires Protected by Tubing 36 Straight - - - 2 in - 18 - - - - 97
RS Stock No. 690-4012
Mfr. Part No.C016 G11 048 E10 V
BrandAmphenol
SGD7.748
Each (In a Pack of 5)
units
- - - - - - - - - - Yes Eco-Mate
RS Stock No. 626-9205
Mfr. Part No.JL05-18EB3B-(11)-RK
BrandJAE
SGD25.96
Each
units
- - - - - - - - 71.3mm - - -
RS Stock No. 716-0275
Mfr. Part No.TVNSA13014
BrandAmphenol
SGD143.16
Each
units
- - - - - - - - 35.6mm - - TV
RS Stock No. 198-7484
Mfr. Part No.BK4SRL12079SN
BrandAmphenol
SGD63.24
Each
units
38999 III 12 Straight Female Aluminium Alloy - - - - - No BK4
RS Stock No. 241-1345
Mfr. Part No.91D1-18-12-1-ZB
BrandPolamco
SGD62.66
Each
units
MIL-DTL-26482 Series I, PATT 105, PATT 603 18 Straight - Aluminium Alloy 3 UNEF 1-1/16-18 - 34mm - - 91
RS Stock No. 752-5688
Mfr. Part No.058-8578-100/ENDGEH.APD WELLSCHLAUCH D=8,5
BrandITT Cannon
SGD3.11
Each
units
APD Series - Straight - PBT - - IP67, IP69K 35.8mm - - 058
RS Stock No. 691-6712
Mfr. Part No.1330 2 P2
BrandAmphenol
SGD53.90
Each
units
Connector 2 Straight - Aluminium Alloy - - IP67 13mm - Yes ECTA 133
RS Stock No. 198-7501
Mfr. Part No.BK4SRL18129SN-B1
BrandAmphenol
SGD95.47
Each
units
38999 III 18 Straight Female Aluminium Alloy - - - - - No BK4
RS Stock No. 178-7332
Mfr. Part No.47377N
BrandAmphenol
SGD46.91
Each
units
SL1 Series 10 Straight Male to Female - - - IP55 52.9 mm, 61.9 mm - - SL 61
RS Stock No. 912-0756
Mfr. Part No.UT0S20JCS
BrandSouriau
SGD42.25
Each
units
UT0-UT0W Series Circular Connector 20 Straight - Zinc Alloy - 1-3/16 in - 18 IP68 84.5mm - Yes UT0
RS Stock No. 709-3778
Mfr. Part No.TT238UD-153
BrandToughcon
SGD19.07
Each
units
- - - - - - - - 35mm - - -
RS Stock No. 198-7533
Mfr. Part No.BK4SRN14089SN-B1
BrandAmphenol
SGD52.60
Each
units
38999 III 14 Straight Female Aluminium Alloy - - - - - No BK4
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