Milbank Aluminum Wire and Tap ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$70.18
Milbank Aluminum Wire and Tap Connector Kits - Mechanical Connection, Single and Slide Nut Types

Milbank Aluminum Wire and Tap Connector Kit - Mechanical Connection with Single and Slide Nut Types

(No reviews yet) Write a Review

Model: K4977-EXT

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

$70.18
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Milbank Aluminum Wire and Tap Connector Kit - Mechanical Connection with Single and Slide Nut Types

Professional Metering Accessory for Reliable Electrical Connections

The Milbank Aluminum Wire and Tap Connector Kit delivers professional-grade mechanical connections for metering applications. This comprehensive kit features aluminum construction with 75°C temperature rating, providing reliable performance in both single and slide nut configurations for versatile electrical connection requirements.

Professional Features & Benefits

  • Aluminum Construction: Lightweight yet durable material provides excellent conductivity and corrosion resistance for long-term reliability.
  • Mechanical Connection Type: Secure mechanical fastening ensures consistent electrical contact and simplified installation without specialized tools.
  • 75°C Temperature Rating: High temperature tolerance accommodates demanding electrical environments and ensures safe operation under load.
  • Dual Configuration Options: Single and slide nut types provide installation flexibility for various metering connection requirements.
  • Metering Accessory Application: Purpose-built for electrical metering systems ensuring proper compatibility and performance standards.
  • Complete Kit Solution: Comprehensive connector kit reduces procurement complexity and ensures component compatibility.

Technical Specifications

  • Application: Metering Accessory
  • Brand Name: Milbank
  • Connection: Mechanical
  • Departent: Electrical
  • Product Family Code: MSMC
  • Product Material: Aluminum
  • Product Type: Wire Connector Kit
  • Temperature Rating: 75 Degrees Celsius
  • Unspsc Number: 39121421

Professional Applications

  • Electrical Metering Systems
  • Commercial Meter Installations
  • Residential Service Connections
  • Industrial Metering Applications
  • Utility Service Connections
  • Multi-Unit Metering Projects
  • Electrical Service Upgrades

Why Choose Milbank Quality?

Milbank delivers proven reliability in electrical connection solutions with aluminum construction and 75°C temperature rating ensuring dependable performance. The mechanical connection design provides secure, long-lasting electrical contacts backed by professional-grade materials and engineering standards.

Manufacturer Resources

Product Specs

Application:
Metering Accessory
Brand Name:
Milbank
Connection:
Mechanical
Product Family Code:
MSMC
Product Type:
Wire Connector Kit
Temperature Rating:
75 Degrees Celsius
Unspsc Number:
39121421
Product Material:
Aluminum
Department:
Electrical
Product Subgroup:
Electrical
Connection Type:
Mechanical
Product Details:
Wire Connector Kit
Product Group:
Metering & Service Entrance

Milbank K4977-EXT – Frequently Asked Questions

1) What wire sizes do the Milbank K1539 and K1540 connector kits accept?
Two different ranges, and they are not interchangeable. The K1539 aluminum lug takes a single conductor from 6 through 350 kcmil and has a 0.375 inch stud hole. The K1540 takes a single conductor from 4 through 600 kcmil, or two conductors from 1/0 through 250 kcmil in the same lug. If you are landing two parallel feeders on one point, K1540 is the one that is rated to do it. Both come three to a kit.
2) Which Milbank slide nut tap connector kit do I use above 300 volts?
The K5022-INT. It is the internal hex slide nut tap connector kit, 14 to 1/0 box connector, rated for over 300V. The K4977-EXT (external hex slide nut, same 14 to 1/0 box connector) and the K4977-INT (internal hex, 12 AWG to 1/0 AWG) are both 300V maximum, so neither belongs on a service above that. All three ship three per kit.
3) Do the Milbank K1539 connectors bolt to a stud in the meter socket?
Yes, the K1539 is a stud mount lug with a 0.375 inch (3/8 inch) stud hole, so it lands over a 3/8 inch stud or bolt in the socket. Measure the existing stud before ordering, since the other Milbank kits in the family are box or slide nut style connectors rather than stud mount.
4) Which Milbank connector kit handles a 4/0 aluminum service entrance conductor?
Either K1539 (6 through 350 kcmil) or K1540 (4 through 600 kcmil) covers 4/0, since 4/0 falls inside both ranges. Choose on the mounting: K1539 is a stud mount lug with a 0.375 inch hole, K1540 is the wider range connector that also accepts two conductors from 1/0 to 250 kcmil. The K4977 and K5022 slide nut kits top out at 1/0 and are too small for a 4/0 feeder.
5) What is the difference between the internal hex and external hex slide nut Milbank connectors?
Where you put the wrench or driver. K4977-EXT uses an external hex slide nut, so you turn it from the outside with a socket or wrench. K4977-INT uses an internal hex, driven with an Allen key down into the nut. Electrically the K4977 pair is close, both 300V, with the external taking a 14 to 1/0 box connector and the internal covering 12 AWG to 1/0 AWG. Pick on what the enclosure gives you room to swing.
6) Can I use these Milbank aluminum connectors on copper conductors?
The Milbank wire connector kits are aluminum bodied with a mechanical, set-screw style connection and a 75 degree C rating. Aluminum mechanical connectors are the standard body material for meter socket lugs and are commonly dual rated, but the conductor material a given kit is listed for is marked on the connector itself. Match the 75C column when you size your conductor, because terminating a 90C conductor on a 75C connector means you size the wire at the 75C ampacity.
7) How many connectors come in a Milbank K1539 or K4977 kit, and is that enough for a single phase meter socket?
Every one of the Milbank connector kits, K1539, K1540, K4977-EXT, K4977-INT and K5022-INT, ships three connectors per kit. Three covers the two line and one neutral, or two load and one neutral, on a typical single phase socket. A three phase socket or a job where you are replacing both line and load side lugs needs more than one kit.
8) Do I need a crimper or hydraulic tool to install Milbank wire connector kits?
No press or die set required. These are mechanical connectors, tightened with a wrench or hex driver depending on which nut style you order, so a service crew can land conductors with hand tools in the socket. Torque them to the value marked on the connector.
9) What are Milbank tap connector kits used for on a metering job?
Tapping smaller conductors off a service or metering point without cutting the main run. The K4977-EXT and K5022-INT are 14 to 1/0 box connectors on a slide nut, which is the range you use for control, house panel, or small sub feed taps rather than the service conductors themselves. For the service conductors on the socket, the K1539 and K1540 aluminum lugs are the ones sized for it.
How fast can I get the Milbank K4977-EXT 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 K4977-EXT come with a warranty?
Absolutely. The Milbank K4977-EXT 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 K4977-EXT?
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
Why buy the Milbank K4977-EXT from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!