User: paulga, Location: New York
Asked on: Friday, August 1, 2025 at 2:07 pm EDT
Answered on: Friday, August 1, 2025 at 3:28 pm EDT
Question: Hi, I want to join from solid wire to stranded. Assuming both 6g. I heard about two connectors from earlier threads. Which is up to the code?1. Burndy YC4C6.2. copper Nicopress sleeveThis is the description of option 1:Run: 6 Sol. - 4 Str., Tap: 6 Sol. - 6 Str.What does this mean?
Okay, let's break down those connectors and their suitability for joining solid and stranded 6 AWG wire, focusing on code compliance and what that Burndy description means.
Understanding the Connectors Burndy YC4C6 HYTAP Connector (C-Tap)
This is a compression connector. It's specifically designed for making tap connections. A tap connection is where you connect one wire to another wire that continues through. It's not usually the best choice for a simple wire-to-wire splice. These connectors are often insulated, which means they don't need additional taping, and are prefilled with corrosion inhibitors. These are often used in underground taps, but they aren't underground rated.
Nicopress Sleeve (Copper)
This is another type of compression connector. You slide the wires into the sleeve and then crimp it with a special Nicopress tool. These are uninsulated and will require taping.
Code Compliance Considerations
Both connectors can be code-compliant if they are:1. UL Listed/Approved
The most crucial thing is that both the connector and the tool used to install it are UL-listed or otherwise approved for the specific application and wire sizes. Look for the UL marking on the connector itself and check the tool's documentation.2.
Properly Installed
The connection must be made exactly according to the manufacturer's instructions. This includes using the correct crimping tool, the correct die (the part of the crimper that shapes the connection), and making the correct number of crimps. Improper crimping is a major cause of failures.3.
Suitable for the Environment
Consider the environment where the connection will be. If it's in a damp or corrosive environment, you need a connector rated for that.4.
Accessible
In most cases, electrical connections need to be accessible for inspection and maintenance. Burying connections directly in walls without a junction box is generally a code violation.5.
Listed for the Conductor Combination
The connector must be listed for connecting both solid and stranded conductors of the specific sizes you're using (6 AWG in your case).
Breaking Down the Burndy YC4C6 Description"Run: 6 Sol. - 4 Str., Tap: 6 Sol. - 6 Str." Run
This refers to the main wire in a tap connection – the one that continues uninterrupted. The YC4C6 can be used on a main wire that's either: 6 AWG Solid wire 4 AWG Stranded wire.
Tap
This refers to the wire that you are connecting to the main wire. The YC4C6 can be used with a tap wire that's either: 6 AWG Solid wire 6 AWG Stranded wire.
The Best Choice for Joining Solid and Stranded 6 AWG
Given that you want to simply join the two wires together (not make a tap connection), a butt splice connector specifically rated for the wire sizes and types is generally preferred over the Burndy C-tap.
Recommended Approach1. Butt Splice Connectors
Look for butt splice connectors that are UL-listed for connecting solid and stranded 6 AWG wire. These are designed for end-to-end connections. A good example might be a Polaris connector.
Polaris Connectors
Polaris connectors are insulated set-screw connectors. They are very reliable and require no special tools.2.
Crimped Butt Splices
Alternatively, you can use a crimp-style butt splice, but be extremely careful to choose one rated for both solid and stranded wire, and use the correct crimping tool and die. Follow the manufacturer's instructions exactly.
Important Considerations and Cautions Aluminum vs. Copper
Ensure that the connector is compatible with the wire material (copper in your case). Do not use aluminum connectors with copper wire, as this can cause corrosion and failure.
Torque
If using set-screw connectors (like Polaris), use a torque wrench to tighten the screws to the manufacturer's specified torque. Over-tightening or under-tightening can lead to connection failures.
Local Codes
Always check your local electrical codes for any specific requirements or restrictions on the types of connectors allowed.
Professional Advice: If you are not comfortable working with electricity, consult a qualified electrician. Electrical work can be dangerous.In summary, while the Burndy YC4C6 could* be used if it's properly rated and installed according to instructions (and you're making a tap connection), a butt splice connector is generally a better choice for a simple wire-to-wire splice. Always prioritize UL-listed connectors and follow the manufacturer's instructions precisely. Flag for review