You're right, $60 per Ilsco Bite connector adds up quickly, especially when you need 3 per meter tap! Let's explore some cost-effective alternatives for tapping from a trough to 7 meters, keeping safety and code compliance in mind. We'll assume copper conductors for this discussion.

Here's a breakdown of options, from most conventional (and often more expensive) to potentially more cost-effective, with considerations for each



1. Polaris Connectors (Insulated Multi-Tap Connectors)



Description

Polaris connectors are insulated multi-tap connectors that allow you to land multiple conductors into a single lug. They're typically rated for AL/CU conductors and are commonly used in troughs.

Pros

Safe: Fully insulated, minimizing the risk of accidental contact. Code-Compliant: Widely accepted and meet UL standards. Easy to Install: Just strip the wires and tighten the set screws. Multi-Tap: Polaris makes multi-tap connectors designed for several conductors, so you can use fewer connectors.

Cons

Cost: Can still be relatively expensive, especially for larger conductor sizes or those with more taps per connector. Size: Can be bulky, especially if you need to stack them.

Where they fit

When a clean, professional, and code-compliant installation is critical.

2. Split Bolt Connectors (with Insulation)



Description

Traditional split bolt connectors are used to join conductors. After tightening, they must be insulated with rubber splicing tape and then electrical tape to create a secure and insulated connection.

Pros

Relatively inexpensive. Readily available.

Cons

Labor Intensive: Requires careful taping to ensure proper insulation. Potential for Error: If not taped correctly, can be a safety hazard. BULKY: Takes up lots of space.

Where they fit

If labor costs are lower than material costs.

3. Mechanical Lugs on a Bus Bar System (for Trough)



Description

Install a copper or aluminum bus bar inside the trough. Then, use appropriately sized mechanical lugs to tap from the bus bar to each meter.

Pros

Very clean installation. Good for high-ampacity applications. Scalable: Easy to add or change connections.

Cons

Higher upfront cost for the bus bar and initial setup. Requires more planning and layout. May require custom fabrication.

Where they fit

High-ampacity systems where future expansion or modifications are likely.

4. Power Distribution Blocks (PDBs)



Description

These blocks are designed to split power from a larger conductor into multiple smaller ones.

Pros

Compact and organized. Rated for specific amperage and voltage. Available with various terminal configurations.

Cons

Cost can vary, but generally more affordable than some individual connectors. You must select the correct PDB based on the amperage of each meter feed.

Where they fit

A good balance between cost, organization, and ease of installation.

5. (Less Preferred) Wire Nuts (Only if Code Compliant and for Smaller Conductors)



Description

Wire nuts are only suitable for small conductors. They're not ideal for tapping larger feeder conductors and are often prohibited by code for this type of application.

Pros

Very inexpensive. Easy to find.

Cons

Not rated for large conductors or high currents typical in meter feeds. Potentially unreliable for multi-conductor taps. May violate NEC code (check with your local inspector). In most jurisdictions, not legal for service entrance conductors.

Where they don't fit

Almost any service entrance application, or any situation where code compliance is paramount. Avoid if possible.

Important Considerations



Conductor Size

Determine the correct conductor size for each meter tap based on the meter's amperage rating and the applicable NEC ampacity tables. The trough feeder conductor must be sized to carry the total load of all 7 meters, plus any applicable demand factors.

Ampacity

Ensure that all connectors and devices are rated for the appropriate ampacity of the conductors.

Material Compatibility

Use connectors rated for the conductor material (copper or aluminum). If mixing copper and aluminum, use connectors specifically designed for dissimilar metals and apply an anti-oxidant compound.

Short-Circuit Current Rating (SCCR)

Consider the SCCR of the system. In some cases, you may need to use listed series ratings to achieve the required SCCR.

Grounding

Maintain a continuous grounding path. As you mentioned, you're running EGCs through the conduit/enclosures. Ensure all metallic enclosures are properly bonded. For a trough, consider a continuous ground bus bar inside the trough, with all EGCs connected to it.

Local Codes and Inspections

Always consult with your local electrical inspector to ensure your installation complies with all applicable codes and regulations. What's acceptable in one jurisdiction may not be in another.

Cost-Saving Strategies



Bulk Purchasing

Purchase connectors in bulk to potentially get a better price.

Negotiate with Suppliers

Get quotes from multiple suppliers and negotiate the best possible price.*

Optimize Layout

Minimize the length of conductors needed for the taps to reduce material costs.

Recommendation Process


Calculate Load

Accurately calculate the total load for the 7 meters.2.

Size Conductors

Size the trough feeder and the individual meter tap conductors based on the load calculations and NEC requirements.3.

Check Local Codes

Confirm what's acceptable with your local electrical inspector.4.

Get Quotes

Get quotes for all of the options listed above from a supplier, considering the cost of labor as well.5.

Choose Wisely: Choose the connection method that is the most cost-effective and compliant with local codes.Good luck with your project! Remember, safety and code compliance are always the top priorities. Flag for review