Backshell, Extender, Size 23 – 30.48 mm – CPC Series

Backshell, Extender, Size 23 – 30.48 mm – CPC Series

Backshell Extender (for Shell Size 23)
A backshell extender is used with a cable clamp in applications where added length and/or additional wire breakout are required.

Material:

• Compatible With Circular Connector Shell Size : 23
• Backshell & Clamp Accessory Type :  Backshell Extender
• Accepts Cable Diameter (Max) :  30.48 mm [ 1.2 in ]
• Material:  Black glass-filled thermoplastic
• OEM Part No.:  207055-1
• BRAND:  TE Connectivity / AMP Brand
• Product Series:  AMP CPC,  AMP Circular Plastic Connectors
• RoHS Compliant

This type of product is engineered to protect connections from environmental conditions and prevent damage from strain, in a heat-resistant design that reduces internal space and application weight. Manufactured for reliable high performance in harsh environment applications, this product features a circular interface and housing that enables you to quickly and easily connect and disconnect signal, power, and optical circuits. It can connect and disconnect without the use of coupling tools such as torque wrenches. Available with multimate high current power contacts and subminiature coax contacts, it offers removable crimp contacts and replaceable coupling rings, which make repair easy with less downtime. This product eliminates the need for – and cost of – hand tools used to mate connect-disconnect polarized housings.

INTRODUCTION 

This specification covers the requirements for application of Circular Plastic Connectors (CPC). The connectors are available in various shell sizes and standard or reverse sex configurations. The four series available include standard, high, and power density connectors, and a combination standard and power density connector. The CPC’s are designed for use with various contacts. Applicable wire sizes range from 30 to 8 AWG and can be crimped with hand tools or by automatic machines.

Wire Size and Preparation

Jacketed or discreet wire may be used with this product.Jacketed cable will provide more protection from damage. Look for information on jacketed cable sealing kits in Instruction Sheet 408–7582

Contacts are available for the wire sizes specified. Prepare wire for crimping by stripping insulation according to dimensions

Loading Contact into Housing

Normally an insertion tool is not required to insert contacts into housings. However, if the wire bundle is large or the individual wires are fragile, the use of an insertion tool is recommended.

Shield and Strain Relief

If wire at the rear of the housing is subjected to strain, use of a strain relief will prevent damage to the contacts, wires, and housing.

• Strain Relief Kits
  • Several types and sizes of strain relief kits are available. Shield and strain relief kits include a shield, strain relief clamps, and two self-tapping screws. They can be attached to the plug and/or receptacle of free–hanging or panel–mounted  connectors. Flexible strain relief boots and grippers are used with jacketed cable (or firmly taped discreet wires) to provide wire protection and prevent contact pullout when severe cable–angle applications are encountered, or when connectors are frequently disconnected and reconnected. Heat shrink sealing boots can also provide a splash–proof strain relief for jacketed cable.
  • If a strain relief is used on the connector, the wires may be dressed to an angle at the end of the strain relief. However, without use of a strain relief, the wires should not be dressed closer than 63.5 mm [2.50 in.] from the back of the
    housing. To prevent damage to contacts and/or housing, avoid exerting stress on wire.
• Boots and Seals 
  • Rubber boots are available and can be used with jacketed cable to provide splash–proof connections for Series 1 and Series 3 connectors. Heat shrinkable sealing boots are available for use with jacketed cable. They will provide an  environmentally sealed wire to–connector system and can be used with plugs or receptacles. A jacketed cable seal will also provide an environmentally sealed connection for jacketed cable. Peripheral seals (for receptacles only) are  recommended for use in sealing splash–proof applications, or where connectors will be subject to vibration.
• Cable Bundle Tie-Off
  • When no strain relief is used and wires need to be tied off, tie–off distance should be 50.8 mm [2.00 in.] minimum for up to 12 circuits and 76.2 mm [3.00 in.] minimum for 12 circuits or more. Supporting the cable with wire harness tie–off will avoid strain on the contact retention system, and will prevent contact back–out or failures.

Polarizing and Keying Features

• Mating
  To prevent accidental disengagement, the CPC’s have a positive lock feature. They are designed with polarizing keys and keyways for easy alignment.
• Keying Plugs
  Use of keying plugs provides keying capabilities for all connector series. Keying plugs are used in socket cavities of standard sex plugs and reverse sex receptacles. They are available in three configurations.
• Contact Crimp Criteria
  Contacts must be crimped to a designated height. Refer to the specific Application Specification for particular type of contacts.
• Connector Application
  Receptacle connectors are available with mounting flanges for front or rear panel–mount applications, and without flanges for free–hanging applications. Square flange receptacles which are pre–loaded with square posted contacts are available.

TOOLING

Hand crimping tools and applicators are available for applying crimp type contacts, also Insertion tools and extraction tools assist in assembly and repair. Instruction Sheets describing tool operations, are packaged with the tool.