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Milbank U214MTB-P – Frequently Asked Questions
1) What is the difference between the 4 terminal, 5 terminal and 7 terminal versions of the Milbank MTB-P100 meter socket?
Terminal count is what decides the service you can meter. The Milbank MTB-P100 main pullout socket is built in 4 terminal, 5 terminal and 7 terminal configurations, and the terminal count has to match what the utility specifies for the service being metered. Voltage pairs with it: 4 and 7 terminal come in both 240V and 480V self-contained, and the 5 terminal comes in 240V and 480V self-contained as well. Pick the terminal count your utility requires first, then the voltage.
2) What does universal mounting mean on the Milbank MTB-P meter socket, and when do I need it?
Universal mounting is a separate build of the same ring-type main pullout socket, ordered under the U prefix: U214MTB-P for 4 terminal 240V, U215MTB-P48 for 5 terminal 480V, U217MTB-P for 7 terminal 240V, U217MTB-P48 for 7 terminal 480V. The non-universal builds carry the plain numbers, 214MTB-P, 214MTB-P48, 217MTB-P and 217MTB-P48. If the utility or the existing installation calls for the universal mounting pattern, order the U part number, because the two are not the same catalog item.
3) Does the Milbank MTB-P100 meter socket need a separate CT cabinet or metering transformers?
No. Every build of the MTB-P100 is self-contained, in both the 240V and 480V versions, meaning the service conductors land directly in the socket and the meter measures the load without external current transformers. If your utility is specifying transformer-rated metering, this is the wrong socket type.
4) Is the Milbank MTB-P100 a ring-type or ringless meter socket?
Ring type. The MTB-P100 uses a sealing ring with a small closing plate, which is what many utilities require for their seal. If the utility on your job specifies a ringless socket, this one will not pass their inspection, so confirm the ring requirement with them before ordering.
5) Does the Milbank MTB-P100 socket have a bypass, and what kind?
It has a link bypass. That lets the meter be pulled and the service kept alive through the bypass links, which is the arrangement most utilities want for a main pullout socket when a meter is changed out. It is not a lever bypass, so the work is done on the links rather than a handle.
6) I have a 7 terminal meter socket on a three phase service. Does the Milbank MTB-P100 cover that?
The 7 terminal builds of the MTB-P100 are the ones to look at, and they come both 240V self-contained (217MTB-P, universal mounting U217MTB-P) and 480V self-contained (217MTB-P48, universal mounting U217MTB-P48). Match the terminal count and voltage to the utility's requirement, and keep the load at or under the socket's 100 amp ceiling.
How fast can I get the Milbank U214MTB-P delivered?
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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 U214MTB-P come with a warranty?
Absolutely. The Milbank U214MTB-P is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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