PRS-GB-CU
Copper ground bar
Wall-mount copper bar for telecom rooms and electrical closets.
Quote by length, thickness, hole count, and tin plating if you need it.
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Copper ground bars for data centers
A ground bar is the landing point for bonding conductors in an electrical room or cage. US data halls use them on backboards behind switchboards and in customer cages. Hole count, length, plating, and whether the bar stands off the wall are what the quote needs.
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How ground bars are used in data center bonding
A ground bar is the copper landing where bonding conductors collect in an electrical room, a cage, or on a backboard behind a switchboard. Equipment frames, tray bonds, and the grounding electrode conductor need a place to terminate that is not a random lug on building steel. US data halls put bars in the main electrical rooms and often again in customer cages.
A bar bolted to the structure and a bar held off the wall on insulators are different details. Isolated bars show up where the reference has to stay off the building steel. Hole count, thickness, and tin plating follow how many lugs land and whether the spec wants a plated surface. Larger collections of lugs step up to a bus section.
The bar is the room end of a system that starts below grade. Exothermic welds and rods build the grid. Jumpers are what actually land on the bar. Lugs have to match the conductor size. Quote the bar with those landings if they are not already installed.
Isolated versus bonded to the wall
A bar bolted straight to steel is a different assembly from one held off the wall on insulators. Isolated bars show up where the signal reference has to stay off the building structure. Say which one the drawing calls for. A sketch or a hole count is enough.
The conductors that land here are often bonding jumpers. The below-grade grid that those conductors eventually reach is quoted under exothermic grounding.
Bus for larger landings
A thin telecom bar runs out of section when many lugs or a large bonding conductor share one point. Tin-plated bus is the usual step up. Quote the cross-section, length, and the stud size that has to pass through it.
Representative quote lines
PRS-GB-ISO
Isolated ground bar kit
Bar plus standoff insulators where the reference has to stay off the structure.
Quote by bar size and insulator height. Include the conductor landing size.
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PRS-GB-BUS
Tin-plated copper bus bar
Heavier bus where many lugs or a larger bonding conductor land together.
Quote by cross-section and length. Note lug size or hole diameter.
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Codes keep a quote attached to the right line in this catalog. They are not a manufacturer part number. If you have a spec, put it in the notes. We price that request, not a shopping cart.
Frequently asked questions
Where does a ground bar go in a data center?
Typically on a backboard in the electrical room and at cage or row bonding points the drawings call out. It is a termination bar, not the buried grid. One bar does not replace a grounding electrode system.
When do I need an isolated ground bar?
When the detail says the bar must stand off the wall so it is not bonded through the mounting. That kit includes insulators. A bar screwed straight to steel is the ordinary bonded bar. Send the detail. Do not assume isolation.
How many holes should the bar have?
Enough for the lugs you know about, plus the spares the drawing shows. A telecom-style bar runs out of section when a large bonding conductor and a row of equipment grounds share it. That is when a thicker bus is the right quote.
Bare copper or tin-plated?
Bare copper is common. Tin plating is requested where the spec wants it or where the landing hardware calls for a plated surface. Say which. Plating is not a cosmetic upgrade we add by default.
Does the ground bar get exothermically welded?
Sometimes the main grounding electrode conductor is welded. Sometimes it lands under a lug. Those are different quotes. The weld mold is under exothermic grounding. The bar on this page is the bus the other conductors terminate on.
Can you quote a bar from a sketch?
Yes. Length, thickness, hole count or a photo, and whether it is isolated are enough to price a starting bar. A manufacturer catalog number, if the spec has one, is better. We will not invent a hole pattern.