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. 265-9806
Mfr. Part No.192993-0084
BrandITT Cannon
MYR202.77
Each
units
- - - - - - - - 88.5mm - - -
RS Stock No. 912-0724
Mfr. Part No.UT022AC
MYR125.94
Each
units
UT0-UT0W Series Circular Connector 22 Straight - Zinc Alloy - 1-5/16 in - 18 - 31mm - Yes UT0
RS Stock No. 178-7348
Mfr. Part No.47378N
MYR196.71
Each
units
SL1 Series 20 Straight Male to Female - - - IP55 59.8 mm, 66.5 mm - - SL 61
RS Stock No. 241-1402
Mfr. Part No.91Q1-20-11-1-ZB
BrandPolamco
MYR175.36
Each
units
Code Q Connector 20 Straight - Metal 3 UNEF 1-1/8-18 - 36mm - - 91
RS Stock No. 873-1667
Mfr. Part No.97-283-16
MYR184.68
Each
units
Jacketed Cable 16 - - Aluminium Alloy - - - - - - 97
New
RS Stock No. 206-7543
Mfr. Part No.M85049/38S15N
MYR68.42
Each
units
38999 III 15 Straight - Aluminium Alloy - - - - - Yes MIL
RS Stock No. 247-7137
Mfr. Part No.4-1437723-7
MYR72.15
Each
units
- 17 Straight - Plastic - - - 43mm - - -
RS Stock No. 689-8840
Mfr. Part No.BK4SRL22159XY
MYR276.62
Each
units
MIL-C 38999 Connector 23 Straight - Zinc Plated Aluminium - - - 31.75mm - - BK4
New
RS Stock No. 206-7513
Mfr. Part No.M85049/38-09W
MYR61.15
Each
units
38999 III 9 Straight - Aluminium Alloy - - - - - Yes MIL
RS Stock No. 708-0485
Mfr. Part No.MBG19S1
MYR42.13
Each
units
- - - - - - - - 54.5mm - - -
RS Stock No. 873-1654
Mfr. Part No.97-283-12
MYR188.607
Each (In a Pack of 22)
units
Jacketed Cable 12 - - Aluminium Alloy - - - - - - 97
RS Stock No. 873-1715
Mfr. Part No.97-3055-120-28003
MYR443.06
Each
units
97 Series Standard Cylindrical Connector 24, 28 Straight Male - - 1-7/16 in - 18 (C Thread), NPT 3/4 in (M Thread) - 28.3mm 1 - 97
RS Stock No. 190-3474
Mfr. Part No.058-8578-101
BrandITT Cannon
MYR5.813
Each (In a Bag of 100)
units
APD Series - Right Angle - PBT - - IP67, IP69K - - - 058
RS Stock No. 190-2526
Mfr. Part No.97-3057-1004
MYR28.362
Each (In a Bag of 75)
units
Jacketed Cable, Wires Protected by Tubing 10SL, 12S Straight - - - 5/8 in - 24 - 20.19mm - - 97
RS Stock No. 912-0752
Mfr. Part No.UT0S18JCSL
MYR152.42
Each
units
UT0-UT0W Series Circular Connector 18 Straight - Zinc Alloy - 1-1/16 in - 18 IP68 85.5mm - Yes UT0
RS Stock No. 198-7522
Mfr. Part No.BK4SRL24179SZN-B1
MYR439.94
Each
units
38999 III 24 Straight Female Aluminium Alloy - - - - - No BK4
New
RS Stock No. 206-7530
Mfr. Part No.M85049/38-19W
MYR62.76
Each
units
38999 III 19 Straight - Aluminium Alloy - - - - - Yes MIL
RS Stock No. 873-1907
Mfr. Part No.97-3057-1024-1(676)
MYR88.963
Each (In a Pack of 50)
units
Jacketed Cable, Wires Protected by Tubing 36 Straight - - - 2 in - 18 - - - - 97
RS Stock No. 873-1743
Mfr. Part No.97-3055-16-8
MYR77.31
Each
units
97 Series Standard Cylindrical Connector 16, 16S Straight Male - - 7/8 in - 20 - 22.23mm 1 - 97
New
RS Stock No. 206-7611
Mfr. Part No.M85049/88-23N03
MYR198.05
Each
units
38999 III 23 Straight - Aluminium Alloy - - - - - No MIL