We are an OEM brass neutral bars (brass neutral links) manufacturer and supplier based in India. We provide custom brass neutral links according to customer drawings and samples, with different conductor ranges, mounting holes, terminal configurations, hole patterns, thread sizes, layouts, connection positions, lengths, widths, and designs. We also supply terminal lugs, terminals, and bases where required. We use CNC-controlled SPM machines designed for operations such as drilling, tapping, chamfering, and slotting on neutral bars.
We commonly use free-cutting brass IS 319, and we support custom brass grades according to customer requirements. Brass earth bars are used in electrical panels, switchgear, power distribution boards, and control panels. Our customers include OEM panel manufacturers, distributors, and wholesalers across the USA, UK, Europe, and Asia. We support medium to bulk volumes and samples according to customer requirements.
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Material: Brass
Electrical Rating: 100A, 500V
Identification Numbers: 1-12, stamped as per drawing
Overall Hole Layout: 12 connection positions
Top Hole Sizes: Ø7 mm, Ø5.5 mm (8X)
M5 Thread: M5 × 9 mm,
M4 Thread: M4 × 8 mm
Cross-Section Dimension: 14 mm × 12 mm
Hole Layout Dimensions: 6.5 mm, 7.5 mm, 8.2 mm, and 14.2 mm
Terminal Screws: M5 × 9 mm and M4 × 8 mm combination flat
Screw Material: MS, brass plated / zinc plated
General Dimensional Tolerance: ±0.2 mm
Custom brass neutral bar designed for a 100A, 500V electrical application, with 12 numbered connection positions and different connection-hole configurations. The drawing shows Ø7 mm and Ø5.5 mm hole sizes, M5 and M4 threaded terminal features, and identification numbers 1-12 stamped on the bar. The assembly uses combination flat terminal screws in M5 × 9 mm and M4 × 8 mm sizes, with MS screws specified as zinc plated.
Material: Brass
Surface Finish: Tin Plated
Thread Size: M4
Number of Screws: 8, MS
Total Number of Mounting Holes: 2
Total Number of Holes: 10, including mounting holes
Hole Diameter: Ø0.22 in.
Overall Length: 3.77 in.
Width: 0.23 in.
Height: 0.35 in.
Custom tin-plated brass neutral bar with 8 M4 threaded connection positions and 2 mounting holes. The bar has an overall length of 3.77 in., width of 0.23 in., and height of 0.35 in., with Ø0.16 in. holes and MS screws supplied for the 8 threaded positions.
Material: Brass
Electrical Rating: 100A, 500V
Number of Circuits / Positions: 5
Overall Length: 46.0 mm
Overall Width: 12.7 mm
Overall Height: 12.7 mm
M4 Threaded Holes: 10 × M4
M5 Thread: 1 × M5
Ø4.0 mm Hole: 1 location
Ø5.5 mm Holes: 3 × Ø5.5 mm, plus central Ø5.5 mm feature
Ø8.0 mm Holes: 2 × Ø8.0 mm
Section X-X Dimensions: 12.7 mm, 3.2 mm
Custom brass neutral link designed for a 100A, 500V electrical application, with 5 numbered circuit positions and multiple threaded and machined hole features. The part has an overall 46.0 mm length and 12.7 mm × 12.7 mm cross-section, with 10 M4 threaded holes, one M5 threaded feature, Ø4.0 mm, Ø5.5 mm, and Ø8.0 mm holes manufactured according to the drawing.
Material: Brass
Surface Finish: Natural Brass
Thread Size: M4
Number of Screws: 6
Total Number of Mounting Holes: 2
Hole Diameter: Ø5.80 mm
Hole Spacing: 10 mm
Overall Length: 100 mm
Width: 8.90 mm
Height: 11.40 mm
brass neutral bar with 6 M4 threaded connection positions and 2 mounting holes. The bar has an overall length of 100 mm, width of 8.90 mm, and height of 11.40 mm, with Ø5.80 mm connection holes and 10 mm hole spacing..
| Item | Details |
|---|---|
| Common Brass Grades | IS 319 free-cutting brass, C36000, CW614N, CW617N, and other customer-specified grades where supported |
| Overall Dimensions | Custom length, width, and height according to customer drawing |
| Connection Positions | Custom number of connection positions according to drawing. |
| Hole count | 6-way, 8-way, 12-way, 17-way, 25-way, and custom hole according to drawing. |
| Thread Types | Metric, UNC, UNF, BSP, BSPT, NPT, and customer-specified thread requirements |
| Mounting Configuration | Through mounting holes, tapped mounting holes, different mounting-hole positions, custom mounting layouts, and direct mounting where required |
| Surface Finish | Natural brass, tin plating, nickel plating, and other customer-specified finishes |
| Terminal / Lug / Base | Terminal lugs, terminals, plastic bases, and related hardware |
| Screws / Hardware | Screws, bolts, mounting hardware, and other specified components |
| Manufacturing Process | Drilling, tapping, chamfering, deburring, slotting, and other machining operations according to part requirements |
| Production Volume | Sample / prototype support, medium-volume, and bulk OEM production |
| MOQ | Depends on drawing, part complexity, and production requirements |
| Lead Time | Depends on order quantity, part complexity, finish, and production requirements |
| Inspection Equipment | Vernier caliper, thread plug gauge, Go/No-Go gauge, pin gauge, and partner-provided CMM, surface roughness tester, and profile projector where required |
| Drawings Accepted | STEP, PDF, DXF, and DWG files |
| Documentation | Material Certificate and Dimensional Inspection Report available on request |
| Packaging | Box, carton, pallet, and custom packaging |
We make brass neutral links from different machining brass grades according to customer requirements. We commonly use free-cutting brass grade IS 319 as our default grade when no specific grade is specified in the drawing, but we also support custom grades as required.
C36000 is a free-cutting brass grade specified as UNS C36000 and covered by standards such as ASTM B16/B16M. C36000 provides excellent machinability and is suitable for brass neutral bars with drilling, tapping, threading, and other machining operations. Its electrical conductivity is about 26% IACS at 20°C.
IS 319 is an Indian Standard for free-cutting brass bars, rods, and sections. It is intended for machining applications, including high-speed machining. The specific IS 319 grade should be confirmed according to the required material specification.
CW614N is a European designation for CuZn39Pb3 free-machining brass. It provides good machinability and is used for machined brass components. The specific material specification should be confirmed according to customer requirements.
| Brass Grade | Standard / Designation | Main Characteristic | Machinability | Electrical Conductivity at 20°C (% IACS) |
|---|---|---|---|---|
| C36000 | UNS C36000 | Free-cutting brass | 100% | 26% IACS |
| IS 319 Grade I | IS 319 | Free-cutting brass | 90% | 28% IACS |
| IS 319 Grade II | IS 319 | Free-machining brass | 100% | 26% IACS |
| IS 319 Grade III | IS 319 | Free-cutting brass | 80% | ≈25.4% IACS |
| CW614N | CuZn39Pb3, EN 12164 | Free-machining brass | High | 25% IACS |
| CW617N | CuZn40Pb2 | Brass for hot working and machining | Good | 28% IACS |
Brass neutral links are available in different configurations, connection positions, mounting arrangements, and terminal designs. The exact configuration depends on the number of neutral connections in the panel layout.
Simple brass neutral bars have a basic bar design with multiple connection positions for neutral conductors. They are available in different lengths, hole counts, thread sizes, and layouts.
Multi-way brass neutral links provide multiple connection positions for neutral conductors.
Common configurations include 4-way and 8-way links, we also offer custom larger hole count configuration.
Brass neutral links are also available with single-row and double-row connection layouts.
Brass neutral links with an insulating plastic base for mounting and electrical separation. We supply different base and terminal configurations according to customer requirements.
DIN-rail mounted brass neutral links are designed for mounting within DIN-rail electrical systems. These configurations can include a brass neutral link with a dedicated insulating base for rail mounting.
We manufacture custom brass neutral links according to customer drawings, samples, and specifications. Custom options include connection positions, hole counts, hole spacing, thread sizes, mounting arrangements, lengths, finishes, and other required layouts.
Brass provides a good balance of machinability, electrical conductivity, corrosion resistance, and mechanical properties for neutral bars, but Brass neutral links have lower electrical conductivity than copper neutral bars. Here are a few points that make brass a suitable choice for neutral bars.
Brass grades such as C36000 provide excellent machinability, making it suitable for neutral bar operations such as drilling, tapping, threading, and other machining work.
Neutral bar has multiple holes and threads. Brass Neutral bar provides more durable threads than aluminum neutral bar.
Brass provides good corrosion resistance in many environments. The actual corrosion performance depends on the brass grade and service environment.
For neutral bars with multiple holes, threads, and other machined features, brass grades can provide a practical balance of machinability, mechanical properties, corrosion resistance, and electrical conductivity. C36000 is also used for general machining and high-volume production.
We provide different surface finishes for brass neutral bars according to customer requirements .The suitable finish depends on the required electrical connection, environmental conditions, wear requirements, and appearance.
| Finish | Typical Purpose / Benefit |
|---|---|
| Natural Brass | Brass surface without an additional plating coating |
| Nickel Plated | Nickel coating used for surface protection, wear resistance, and corrosion resistance |
| Tin Plated | Tin coating used for low-contact-resistance electrical connections and corrosion protection |
A brass neutral bar can be used with aluminum or copper conductors when the complete connection system is rated for the conductor material. The brass bar itself does not automatically make a connection suitable for both conductor types. The terminal, screw, lug, and connection design must be specified for the conductor being used.
There is no single tightening torque for all brass neutral bars. The correct torque depends on the screw size, thread, conductor size, terminal design, fastener, and connection requirements.
Yes. A custom brass neutral bar can be machined with different hole diameters and thread sizes on the same bar. This can include different drilled holes, mounting holes, and threaded connection points.
Yes. A brass neutral bar can be supplied as part of an assembly with an insulating base for mounting and electrical separation. Neutral busbar systems also use insulating support components for mounting the conductive busbar.
Yes. Brass grade can have a significant effect on machining performance. C36000, for example, is a free-cutting brass with a 100 machinability rating and is used for general machining and high-volume production.
Yes, a brass neutral bar can be manufactured from an existing sample, but the sample should be checked to establish the required dimensions, hole pattern, thread details, material grade, finish, and other manufacturing requirements before production.
To request brass neutral bars quotation, send your product drawing and RFQ details.
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Send your RFQ and drawings to receive a quotation with pricing and indicative lead time.
