Milbank Bolt-On Wire Connector...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$84.81
Milbank Bolt-on Type Lugs, 7 Terminals, 3Ø4W Connector Kits

Milbank Bolt-On Wire Connector Kit with 7 Terminals 3Ø4W Aluminum Construction

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Model: Z703916-AC

In Stock (leaves warehouse same day if ordered before 3pm ET)

$84.81
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Milbank Bolt-On Wire Connector Kit with 7 Terminals 3Ø4W Aluminum Construction

Professional Metering Accessory for Reliable Electrical Connections

The Milbank Bolt-On Wire Connector Kit delivers professional-grade electrical connections with 7 terminals in a 3Ø4W configuration. Constructed from durable aluminum with mechanical connection design, this UL Listed connector kit provides reliable performance for metering applications up to 600 volts AC with a temperature rating of 75 degrees Celsius.

Professional Features & Benefits

  • 7 Terminal Configuration: Provides comprehensive connection capacity for complex three-phase four-wire electrical systems
  • Aluminum Construction: Delivers excellent conductivity and corrosion resistance for long-term reliability
  • UL Listed Certification: Ensures compliance with safety standards and code requirements for professional installations
  • 600V AC Rating: Handles standard commercial and industrial voltage levels with confidence
  • 75°C Temperature Rating: Maintains performance integrity under demanding thermal conditions
  • Mechanical Connection Design: Provides secure, maintenance-friendly connections without specialized tools
  • Stud Mounting System: Enables straightforward installation and secure positioning in electrical enclosures

Technical Specifications

  • Application: Metering Accessory
  • Brand Name: Milbank
  • Connection: Mechanical
  • Departent: Electrical
  • Insulation: None
  • Product Family Code: MSMC
  • Product Material: Aluminum
  • Product Mounting: Stud
  • Product Type: Wire Connector
  • Standard: UL Listed
  • Temperature Rating: 75 Degrees Celsius
  • Unspsc Number: 39121421
  • Voltage Rating: Up to 600 Volts Alternating Current

Professional Applications

  • Electrical Metering Systems
  • Commercial Building Electrical Distribution
  • Industrial Power Monitoring
  • Multi-Unit Residential Properties
  • Professional Electrical Installations
  • Utility Connection Points
  • Three-Phase Power Distribution

Why Choose Milbank Quality?

Milbank delivers proven reliability through UL Listed certification and professional-grade aluminum construction. With a 75°C temperature rating and 600V AC capacity, this connector kit provides the durability and performance standards required for demanding electrical applications.

Manufacturer Resources

Product Specs

Application:
Metering Accessory
Brand Name:
Milbank
Connection:
Mechanical
Product Family Code:
MSMC
Product Type:
Equipment Lug Kit
Standards:
UL Listed
Temperature Rating:
75 Degrees Celsius
Unspsc Number:
39121421
Voltage Rating:
Up to 600 Volts Alternating Current
Product Material:
Aluminum
Product Mounting:
Stud
Department:
Electrical
Product Subgroup:
Lugs & Terminals
Installation Category:
Stud
Connection Type:
Mechanical
Product Details:
Wire Connector
Product Group:
Wire Connectors & Terminals

Milbank Z703916-AC – Frequently Asked Questions

1) What wire sizes do the Milbank 7-terminal bolt-on connector kits cover?
The Milbank bolt-on lug kits are ordered by wire range, and there are seven to pick from: #6-250, #6-350, #4-350, #4-500, #2-500, and 3/0-800 in either side entry or front entry. Match the range to the largest conductor you are landing, since the lug body is sized for that range rather than field adjustable.
2) What is the difference between the side entry and front entry 3/0-800 Milbank lug kits?
Both cover the same 3/0 through 800 conductor range; the difference is which direction the cable comes into the lug. Side entry (Z703916-AC) takes the conductor in from the side of the lug body, front entry (Z703921-AC) takes it straight in from the front. Pick based on how your cable is routed inside the socket or enclosure, because a tight gutter will usually dictate one or the other.
3) Will a 7-terminal 3-phase 4-wire lug kit work on a single phase meter socket?
No. The 7-terminal kit is built out for a three-phase four-wire service, which needs three phase landings plus neutral on both line and load. A single phase 3-wire socket uses fewer terminals, so you would be buying terminals you cannot use and, more importantly, a kit laid out for a different socket. Order the lug kit that matches the terminal count of the Milbank socket you are working in.
4) What voltage and temperature is the Milbank bolt-on lug kit rated for?
Rated up to 600 volts AC at 75 degrees Celsius, and UL Listed. That covers standard 120/208, 277/480 and similar commercial and industrial distribution. The 75 C rating is the one to watch on a design job: if your conductor ampacity was taken from the 90 C column, the termination holds the circuit to 75 C values.
5) What is the difference between the Milbank Z70 bolt-on connector kit and a split bolt connector like the NSi N-2SP?
They solve different connection problems. The Milbank Z70 kit is a stud-mounted, mechanical bolt-on lug assembly supplying 7 terminals for a three-phase four-wire arrangement, built in aluminum and UL Listed for use up to 600 volts AC at 75 degrees Celsius; it bolts to landing studs inside metering equipment. The NSi N-2SP is a copper split bolt connector, tin plated, which splices or taps two conductors to each other in free air or in a box rather than landing them on equipment studs. If you are terminating service conductors onto meter socket or distribution studs, the bolt-on lug kit is the form factor; if you are joining a run of wire mid-span, the split bolt is.
6) I need to splice two large conductors, not land them on a meter socket. What should I use instead of the Milbank Z70 kit?
The Milbank Z70 is a metering accessory: a stud-mounted lug kit with 7 terminals meant to land conductors on equipment studs, so it is not a splicing device. For joining two conductors to each other, the NSi N-4 is a copper split bolt connector configured for 2 wires, and the NSi N-2SP is a tin plated copper split bolt. For a compression splice or tap in aluminum, the Burndy YHD series is an aluminum compression line tap connector. Choose by whether your job wants a mechanical bolted splice or a crimped compression one.
7) Can these aluminum lugs be used with copper conductors?
The Milbank bolt-on lugs are aluminum bodied with a mechanical, set-screw style connection. Aluminum mechanical connectors are commonly dual rated for copper or aluminum conductors, but that rating is marked on the lug itself and the UL marking on the part governs. Verify the AL/CU marking on the lug body before landing copper.
8) How do these lugs mount, and do I need special tooling to install them?
They are stud mounted bolt-on lugs: the lug body bolts to the terminal studs in the meter socket or enclosure, then the conductor is secured by a mechanical set screw. No crimp tool, die set or hydraulic press is required, just a torque wrench or screwdriver to the marked torque value. That is the main practical difference from a compression lug.
9) Should I use a bolt-on mechanical lug kit or a compression connector for my service conductors?
A bolt-on mechanical lug kit like the Milbank 7-terminal kits is for landing service conductors onto the terminal studs of a meter socket, and it installs with hand tools. A compression connector, such as the Burndy YHD Series aluminum compression line tap, is for splicing or tapping conductors to each other and needs a crimp tool and the correct die. If you are terminating into a socket, use the bolt-on lugs. If you are tapping a run, use the compression type.
10) Are split bolt connectors an alternative to these meter socket lug kits?
No, they do a different job. A split bolt such as the NSi Industries copper split bolt connector joins two conductors together in a tap or splice. The Milbank bolt-on kit lands conductors on terminal studs inside metering equipment and comes with seven terminals laid out for a three-phase four-wire socket. One will not substitute for the other.
11) Can I use an Ideal INSURE 30-1012 wire connector in place of the Milbank 7-terminal bolt-on lug kit?
No. The Ideal Industries 30-1012 INSURE connector is a 12 AWG twist-on connector sold in a 90-pack for branch circuit splices. The Milbank Z70 bolt-on kit is a stud-mounted aluminum lug assembly with 7 terminals for three-phase four-wire service, and its wire range options run from #6-250 up through 3/0-800 MCM. Those are opposite ends of the conductor size scale, with no overlap.
12) How does a Burndy IMPLO implosive connector compare with the Milbank Z70 bolt-on lug kit?
The Burndy IMPLO 9 Series and the 9052 series are implosive-technology connectors, formed onto the conductor by an energetic charge, which makes them a permanent one-time connection typically used on utility conductor joints. The Milbank Z70 kit uses a mechanical connection and stud mounting, so terminations can be torqued, inspected, and re-made with ordinary hand tools, and it is UL Listed for up to 600 volts AC. Pick the Milbank kit when the terminations sit inside 600V metering equipment that will be serviced; pick an implosive connector when the joint is permanent.
13) Is the Milbank bolt-on lug kit insulated?
No, these are bare aluminum lugs with no insulation. They are intended to be installed inside a metering enclosure or socket where the enclosure provides the protection, not used as an exposed splice. If your application needs an insulated connection, this is not the part.
How fast can I get the Milbank Z703916-AC delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Milbank Z703916-AC come with a warranty?
Absolutely. The Milbank Z703916-AC is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Milbank Z703916-AC?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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