Circular Connector Dust Caps

Circular connector dust caps are to provide environmental protection for circular connectors in both threaded and bayonet versions. Originally designed to meet military standards, they are used with rugged connectors in harsh environments.


Adding a circular connecter dust cap you your connectors can help you achieve an IP rating standard that might be crucial to achieve a safety standard for your circular connector. Dustcaps will help prevent the ingress of water, dust, sand and dirt get into your connector.



What are circular connector dust caps used for?


Circular connector dust caps protect and plug connectors and other wire harness components from physical damage. The cap works as a seal against particles, moisture and other possible contaminants.



Types of circular connector dust caps:



  • Fibre dust caps: Fibre dust caps include a fibre cord. The fibre cord can be used to secure the cap and connector to ensure safety.

  • Connector dust caps with chains: Dustcaps with chains can be used in harsher environments, thanks to the plating of the cord.

  • Port dust caps: Threaded onto connector adapters to provide protection from outside elements such as harsh weather conditions.

  • TPE: TPE (thermoplastic elastomer) material that is both durable and solid and can be used in both harsh and non-harsh environments for versatility.



IP Ratings:


An IP (ingress protection) rating is the rating backed by standard IEC 60529 to tell you how waterproof/dust-proof a component is. IP ratings are made up from two letters (IP) and two numbers. The numbers refer to different levels of protection, as seen below.


The first number relates to how protected against solids the item is while the second number is how protected it'll be against liquids.



  • IP66 - Fully dust tight with the ability to handle powerful water jets up close. (Not submersible).

  • IP67 - Fully dust tight again, however, has the ability to withstand immersion up to 1m.

  • IP68 - Dust tight and can be submerged up to 1m+.

  • IP69 & IP69K - Completly dust tight and can be submerged for long amounts of time in 1m+ depths. IP69K can handle hot pressures and steams.


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Description Price Gender Shell Size Military Standard Series IP Rating Panel Mount Fitting Material Cord Included Finish Colour Series Number For Use With Accessory Type Interface Type
RS Stock No. 178-9136
Mfr. Part No.BFG.2B.100.PCSG
BrandLemo
SGD23.37
Each
units
- 2 - 2B - - - - - - - - - -
RS Stock No. 178-9108
Mfr. Part No.BRA.2B.200.PCSG
BrandLemo
SGD17.07
Each
units
- 2 - 2B - - - - - - - - - -
RS Stock No. 178-9091
Mfr. Part No.BRA.1B.200.PCSG
BrandLemo
SGD25.45
Each
units
- 1 - 1B - - - - - - - - - -
RS Stock No. 178-9057
Mfr. Part No.BRR.0S.200.PZVG
BrandLemo
SGD13.01
Each
units
- - - 0S - - - - - - - - - -
RS Stock No. 178-9120
Mfr. Part No.BFG.1B.100.PCZG
BrandLemo
SGD18.15
Each
units
- 1 - 1B - - - - - - - - - -
RS Stock No. 178-9063
Mfr. Part No.BRR.1S.200.PZVG
BrandLemo
SGD13.72
Each
units
- 1 - 1S - - - - - - - - - -
RS Stock No. 178-9079
Mfr. Part No.BRR.2S.200.PZVG
BrandLemo
SGD24.84
Each
units
- 2 - 2S - - - - - - - - - -
RS Stock No. 144-2777
Mfr. Part No.BRE.1T.200.CAZ
BrandLemo
SGD25.30
Each
units
Male - - 1T IP68 Yes Brass Yes Chrome Silver 200 - - -
RS Stock No. 324-6984
Mfr. Part No.BRA.3B200.PCSG
BrandLemo
SGD17.98
Each
units
- 3 - 3B - - - - - - - - - -
RS Stock No. 760-0060
Mfr. Part No.BGE.2M.200.XAZ
BrandLemo
SGD90.81
Each
units
Female 2 MIL STD-810-E 2M IP68 - Aluminium Alloy Yes Nickel Anthracite - - - -
RS Stock No. 144-2778
Mfr. Part No.BRE.2T.200.CAZ
BrandLemo
SGD52.77
Each
units
Male - - 2T IP68 Yes Brass Yes Chrome Silver 200 - - -
RS Stock No. 144-2780
Mfr. Part No.GMA.3B.090.DN
BrandLemo
SGD12.07
Each
units
Male - - 3B - - Polyurethane Elastomer - - Black - - - -
RS Stock No. 144-2776
Mfr. Part No.BRE.0T.200.CAZ
BrandLemo
SGD29.24
Each
units
Male - - 0T IP68 Yes Brass Yes Chrome Silver 200 - - -
RS Stock No. 760-0089
Mfr. Part No.BGF.2M.100.XAV
BrandLemo
SGD108.26
Each
units
Male 2 MIL STD-810-E 2M IP68 - Aluminium Alloy Yes Nickel Anthracite - - - -
RS Stock No. 178-9114
Mfr. Part No.BFG.0B.100.PCZG.
BrandLemo
SGD15.61
Each
units
Female - MIL-G-45204C 0B - Yes Metal - Nickel - - - - -
RS Stock No. 178-9085
Mfr. Part No.BRA.0B.200.PCSG
BrandLemo
SGD24.83
Each
units
- - - 0B - - - - - - - - - -
RS Stock No. 144-2779
Mfr. Part No.GMD.00.025.DN
BrandLemo
SGD2.83
Each
units
Male - - 00 - - Polyurethane Elastomer - - Black - - - -
RS Stock No. 144-2775
Mfr. Part No.BRE.TT.200.CAZ
BrandLemo
SGD19.77
Each
units
Male - - TT IP68 Yes Brass Yes Chrome Silver 200 - - -