Are you looking for a quick cable connection?
Then we have just what you need. With the JCC cable joint, you can quickly and easily connect two cables. JCC has a wide range of applications: in installation conduits, mechanical engineering, building services, lighting installations, event technology, trade show construction, and much more.
This cable joint combines the proven technology of a Jacob PERFECT cable gland and a WAGO feed-through connector. The PERFECT dome nuts provide strain relief and integrated twist protection for the cables. Inside is the proven WAGO technology with 3 or 5 feed-through connectors, allowing you to connect your wires easily.
Its robust housing is made of fiberglass-reinforced polyamide and has an excellant mechanical strength. It permanently protects your electrical connections from moisture, dust and even stepping on. Thanks to the snap-in function of the housing covers, you can complete your installation quickly and securely.
Product-Highlights
- available in 4 dimensions, for 3-core and 5-core cables with single and double strain relief
- Protection grade IP66 / IP68 - 0,2 bar (30 min.) without additional sealing materials
- Temperature range from -25 °C to +85 °C
- versatile application thanks to slim design
- reusable
- compatible with PERFECT cable gland accessories, such as multi-hole sealing inserts or dome nuts with spiral top
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What are cable connectors?
Cable connectors - or more accurately cable joints - are used to create a secure, quick, and permanently reliable connection between two electrical cables or wires. They are used wherever cables need to be extended, repaired, or existing installations need to be modified. For example, during maintenance and repair work, in building renovations, or in temporary installations such as trade shows and events. Modern cable joints allow for easy installation and ensure electrical safety, mechanical cover and protection against environmental influences such as humidity and dust.
When are cable joints used?
In practice, wires need to be connected, for example, when:
- cables need to be extended due to a change in plans,
- damaged sections of wire need to be replaced,
- systems are being expanded or modified,
- sensors, motors, or other components are being retrofitted,
- a maintenance-friendly and detachable connection is required,
- a temporary installation is needed.
Application Examples
The primary benefit of cable connectors lies in their ability to facilitate repairs, maintenance, and upgrades to existing cables, as well as in temporary installations.
Repair
Damaged cables do not always need to be completely replaced. With a suitable cable connector, damaged sections of cable can be repaired quickly and safely. This reduces downtime and avoids costly rewiring.
Maintenance and Servicing
During service and maintenance work, cables often need to be disconnected, extended, or reconnected. Reusable cable connectors allow for quick implementation directly on-site and facilitate future maintenance tasks.
Modernization and Plant Retrofits
Production facilities, conveyor systems, and technical installations are regularly expanded or retrofitted. Cable connectors offer a practical solution when existing cables need to be adapted to new conditions without having to completely reroute the entire cable run. When additional sensors, lighting, cameras, or other electrical components are installed, cable connectors can help flexibly extend existing cables and implement adjustments cost-effectively.
Building Modernization
During the modernization of public and private buildings, it is often necessary to add additional wiring—for example, for electric garage door openers, shading systems, or additional lighting. In such cases, a branch can be made from existing wiring and extended using a cable connector.
Temporary Installations
For temporary applications, quick installation and easy dismantling are particularly important. Typical examples include festivals, trade shows, and events, temporary construction site facilities, and mobile power supply systems. In these cases, reusable cable connectors offer significant advantages over permanent connection methods.
Outdoor Installations and Infrastructure
In outdoor installations, cables often need to be adjusted or repaired on site—for example, in street lighting, parks and recreational facilities, and traffic and surveillance systems. Cable connectors with a high protection rating ensure a permanently reliable connection even under demanding environmental conditions.Der wichtigste Nutzen von Kabelverbindern liegt in der einfachen Reparatur, Instandhaltung, Modernisierung bestehender Leitungen und in temporären Installationen.
Cable joint, plug-in connectors, or cable glands—what are the differences?
There are many options for electrical installations; the terms are similar, but the products serve different purposes:
Cable joints are used to directly connect two wires. They create a protected electrical connection and, depending on the design, can be permanent or detachable.
Plug-in connectors allow for frequent disconnection and reconnection of electrical connections without tools. They are used, for example, in machines, sensors, or devices.
Cable glands or cord grips securely feed cables into enclosures and provide sealing and strain relief. However, they do not establish an electrical connection between two wires.
What requirements must a cable joint meet?
Depending on the application, a cable connector must meet various requirements:
- Electrical safety: reliable operation at specified voltage and current levels
- Mechanical stability: secure strain relief to prevent cables from being pulled out, and a mechanically robust housing with a long service life
- Protection against environmental impact: protection against the ingress of moisture and dust, protection for the electrical contacts
- Easy assembly: quick, fail-safe installation
A suitable cable joint ensures that the electrical connection functions reliably over the long term while also being protected against tensile loads, moisture, and dust.
What types of cable connectors are there?
Depending on the application, various solutions are available:
- Screw type connectors for traditional installations
- Spring-loaded connectors for quick, tool-free wiring
- Heat-shrink sleeves for permanent connections with high sealing performance
- Resin-molded sleeves for particularly demanding environmental conditions
- Reusable cable joints for flexible applications and maintenance work
The selection depends, among other things, on conductor cross-section, environmental
conditions, installation effort, and maintenance requirements.
Cable joint or Plug-in Connector?
Plug-in connectors are designed for regularly disconnecting and reconnecting electrical connections.
Advantages of plug-in connectors:
- Frequent plugging and unplugging possible
- Quick device replacement
- Standardized interfaces
Disadvantages compared to cable joints:
- Require more space
- Often result in higher initial costs
- Require additional components
Recommendation: If a connection needs to be disconnected regularly, connectors are the right choice. For permanent cable connections, cable connectors often offer the simpler and more cost-effective solution.
Cable joint or heat-shrink sleeve?
Heat-shrink sleeves enclose the connection point with a heat-shrinkable tube. Heating the tube creates a permanently protected connection.
Advantages of heat-shrink sleeves:
- Excellent sealing
- High mechanical strength
- Compact designe
Disadvantages compared to cable joints::
- Cannot be disconnected
- Requires installation with a heat gun
- More complex installation
- Repairs are only possible by reinstalling
Recommendation: Heat-shrink sleeves are particularly suitable for permanent installations, while cable connectors offer advantages when maintenance, repairs, or flexibility are required.
Cable joint or cast resin sleeve?
Cast resin sleeves protect the connection with a special encapsulation material. They are frequently used in particularly demanding environments.
Advantages of cast resin sleeves:
- Maximum moisture resistance
- High chemical resistance
- Highly resistant to mechanical stress
Disadvantages compared to cable joints:
- High installation effort
- Long processing time
- Not reusable
- Higher installation costs
Recommendation: For underground installation or permanently damp environments, cast resin sleeves are often the preferred solution. For industrial applications requiring maintenance, cable connectors are usually more cost-effective.
Screw Clamps or Spring-Loaded Connectors?
Screw clamps
Advantages:
Proven technology
High holding forces
Disadvantages:
Time-consuming installation
Retightening may be necessary
Installation errors possible due to incorrect tightening torque
Spring-loaded connectors
Advantages:
Quick, tool-free installation
Consistent contact force
Low maintenance
Particularly suitable for applications with vibrations
Disadvantages:
Slightly higher component costs, depending on the design
The Right Solution for Each Application
| Application | Recommended Solution |
| Quick cable extension | Cable joint |
| Maintenance-friendly installation | Cable joint |
| Permanent outdoor installation | Cable joint / Heat-shrink sleeve |
| Underground installation | Resin-molded sleeve |
| Frequent connection and disconnection | Plug-in connector |
| High chemical exposure | Resin-molded sleeve |
Conclusion
There is no one-size-fits-all solution for every application. While heat-shrink and cast resin sleeves are particularly effective for permanently installed cables, modern cable connectors stand out for their ease of installation, high flexibility, and ease of maintenance. For many industrial applications, they therefore represent an optimal balance of safety, protection, and cost-effectiveness.
Practical Tip: During maintenance and service work, reusable cable connectors offer a major advantage: The connection can be opened, inspected, and resealed as needed without having to replace the entire installation. This significantly reduces downtime and maintenance effort.
The advantages of cable joints at a glance:
Cable joints enable the quick and secure connection of two wires. Modern designs combine reliable electrical contact with strain relief and sealing against dust and moisture. Choosing the right cable connector depends on the electrical requirements, environmental conditions, and the desired installation method. A high-quality connection solution not only ensures reliable operation but also reduces installation effort and maintenance costs.
All advantages at a glance:
- Quick installation
- Compact design
- Detachable connection
- High protection ratings up to IP68 possible
- Ideal for maintenance and retrofitting
How easy is the assembly of a cable joint?
1. Select the sealing insert based on the diameter of your cable. Feed the cable through the dome nut and the sealing insert.
2. Remove the cable jacket and strip the individual wires.
3. Insert the wires into the WAGO terminals and close the clamps.
4. Push the wire with the terminals through the housing of the cable joint.
5. Repeat steps 1 and 2 with the second wire from the other side.
6. Secure the wires on the opposite side of the terminals.
7. Close the housing covers by snapping them into place.
8. Tighten the dome nuts to the specified torque.
Answer: very easy!
Avoid mistakes during assembly
Installing a cable joint is simple and safe; installation errors are therefore very rare. The most common mistake is choosing the wrong product. For this reason, you should carefully check in advance whether a cable joint, a plug-in connector, a heat-shrink sleeve, or a cast resin sleeve is the best solution for your intended application. Among the few possible errors when installing a cable connector are…
Stripping the insulation too short or too long
If too little insulation is removed, a secure contact may not be established. If the insulation is stripped too long, exposed conductors can compromise safety.
Incorrect cable diameter
If the cable diameter is smaller than the diameter suitable for the cable connector, a tight seal and strain relief cannot be guaranteed. A cable with a diameter that is too large cannot be installed.
Damage to the conductor or cable jacket
Twisted or damaged conductors can compromise the protection rating.
Dome nut tightened at an angle
If the cap nut does not sit properly on the cover’s thread or is tightened at an angle, strain relief and the protection rating are not ensured.
Incorrect torque
Insufficient tightening torque can compromise the seal. Excessive torque can damage seals or housing components.
In summary:
Installing a cable connector can be done in just a few simple steps. Proper preparation, correct connection of the conductors, and proper installation of the sealing and strain relief elements are crucial for a permanently secure and leak-tight connection. Careful installation extends the service life of the connection and minimizes the risk of operational failures.
FAQ
What is a cable joint?
A cable joint enables a secure electrical connection between two wires. Depending on the design, it protects the connection point from dust, moisture, and mechanical stress.
When is a cable joint used?
Cable joints are typically used for repairs, maintenance work, system modifications, retrofits, and temporary installations.
What advantages does a cable joint offer over completely rewiring a system?
In many cases, damaged or insufficiently long wires can be repaired quickly and cost-effectively without having to replace the entire cable.
What types of wires can be connected?
Depending on the model, solid-wire, stranded, and fine-strand wires can be connected.
Can cables of different cross-sections be connected to each other?
This depends on the through-type connector used and should be verified based on the technical specifications.
Can flexible and rigid cables be connected?
Yes, many modern connection systems are suitable for both types of cables.
Are cable joints waterproof?
Cable joints with appropriate protection ratings, such as IP67 or IP68, are suitable for use in damp environments and outdoors.
Can cable joints be used outdoors?
Yes, provided that the protection rating and material properties are suitable for the specific application.
Do I need special tools for installation?
Most modern cable joints can be installed without special tools.
Can cable joints be reopened?
Reusable cable joints can be opened for maintenance or repair work and reused.
Is strain relief built in?
High-quality cable joints feature built-in strain relief that protects the electrical connection from mechanical stress.
Can a cable joint be used to repair a damaged cable?
Yes, this is one of the most common applications.
Are cable joints suitable for maintenance and service work?
Yes, detachable cable joints in particular are very well suited for maintenance and repair work.
Can cable joints be used for temporary installations?
Yes, for example, in event technology, trade show construction, on construction sites, or with mobile systems.
Can existing cables be extended using a cable joint?
Yes, provided that the cable diameter, cable cross-sections, and electrical requirements are taken into account.
Are cable joints suitable for machines and industrial equipment?
They are frequently used for modifications, repairs, and retrofits in industrial facilities.
When should I use a cable joint instead of a heat-shrink or cast resin sleeve?
Cable joints are particularly suitable when quick installation, ease of maintenance, or reusability are required.