What is the DE Series Brass Neutral Bar?

The DE Series is MISCO Australia’s range of precision-machined brass termination bars designed for reliable neutral or earth distribution in commercial and industrial switchboards.

What current ratings are available?

MISCO stocks 250 A units and supplies 165 A units. Other ratings (80 A, 125 A, 400 A) are available as special order.

Can they be used for both neutral and earth?

Yes. The DE Series can function as either a neutral bar or an earth bar depending on installation requirements and labeling.

What screw sizes are used?

Depending on the model, bars are supplied with M4, M5, M6, M8, or M10 screws to suit the required conductor size and current rating.

What conductor sizes are supported?

Typical ranges are: • M4/M5: 2.5–10 mm² • M6: 6–25 mm² • M8: 16–50 mm² • M10: 35–70 mm²

Do they come with a mounting base?

Yes. Options include phenolic, PVC, polycarbonate, or epoxy-glass composite (GPO-3, G10, G11) bases. Bases are available as special order.

Are there colour options?

Bases can be supplied in black, grey/white, red, or green/yellow. Neutral identification (blue) and earth identification (green/yellow) can also be supplied. Bases are available as special order.

Do the DE Series meet Australian electrical standards?

Yes. They are suitable for use in assemblies conforming to AS/NZS 61439 and support wiring practices aligned with AS/NZS 3000.

Can MISCO machine custom designs?

Absolutely. MISCO can manufacture custom lengths, hole patterns, screw combinations, and OEM-specific configurations These parts are available for special order

Are these bars corrosion-resistant?

Yes. Brass provides inherent corrosion resistance, and terminals can be supplied in zinc-plated or stainless steel for enhanced durability.

What are typical applications?

• Switchboards • Distribution boards • MCCs • Control panels • Industrial machinery and electrical assemblies

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DE SERIES BRASS NEUTRAL BAR

The DE Series Neutral Bar is a precision-machined brass neutral link system designed for modern Australian switchboard builders who expect consistency, reliability, and straightforward installation. Built for durability and high electrical performance, the DE Series provides robust termination points for neutral distribution in residential, commercial, and industrial panels.

Manufactured from high-conductivity brass and secured with steel or brass terminal screws, the DE Series offers stable, low-resistance connections that meet the demands of today’s electrical systems.

SPECIFICATIONS

Product Form

Brass Neutral Link Bar (Bar Only)
Solid brass bar drilled and tapped for multi-point cable termination.
Brass Neutral Link Bar with Insulating Base
Pre-mounted on phenolic, PVC, polycarbonate, or epoxy-glass base for safe neutral/earth distribution.
Neutral Bars (165 A / 250 A / Custom Ratings)
Standard current ratings suitable for commercial and industrial switchboards.
Earth Bars
Brass bars supplied with or without green/yellow identification.
Custom Machined Configurations
Hole patterns, screw sizes, and bar lengths manufactured to customer specification.
Optional Accessories
Screws, terminal hardware, covers, identification tags (N / E), and custom bases.

Standard Colours

Natural brass finish

Screws / Terminals

Material Options:
- Zinc-plated steel (standard)
- Stainless steel (corrosion-resistant option)
Thread Sizes:
- M4, M5, M6, M8, M10 (rating and bar size dependent)

Current Ratings

80 A – Light commercial and small distribution boards
125 A – General-purpose commercial boards
165 A – Mid-range industrial boards, small MCCs*
250 A – Industrial switchboards and higher-capacity distribution systems*
400 A – Heavy-duty, high-current industrial application

* Held in stock by MISCO Australia only.

All other ratings are supplied as special order.

Compliance

RoHS compliant (brass alloy exemption for copper-based alloys applies)
REACH compliant with no SVHC substances intentionally added
Asbestos-free materials and manufacturing processes
Manufactured from compliant brass grade C36000 / CZ121
Lead content within allowable limits for machining brass under RoHS exemptions
Halogen-free metal component
Insulating bases available in compliant phenolic, PVC, polycarbonate, and epoxy-glass composites
Suitable for integration into assemblies built to AS/NZS 61439
Supports wiring practices aligned with AS/NZS 3000
Electrical contact surfaces machined to minimise resistance in accordance with industry norms
Corrosion-resistant brass suitable for industrial and commercial environments
Manufactured to recognised brass machining tolerances for accuracy and repeatability
Meets industry expectations for low-voltage distribution hardware
Stable performance across standard industrial temperature and humidity ranges
Free from ozone-depleting substances (ODS)
No PCBs or restricted organic compounds
Compliant with general electrical equipment safety principles
Compatible with copper conductors meeting AS/NZS 1125
Supports termination practices aligned with typical switchboard QA requirements
Suitable for use in equipment aligned with ISO 9001 manufacturing processes
Resistant to common industrial contaminants and atmospheric conditions
Non-magnetic metal construction (brass) reducing interference risks

PHYSICAL
PROPERTIES

ELECTRICAL PERFORMANCE

THERMAL PERFORMANCE

High Dielectric Strength
Engineered for excellent insulation performance in power distribution, switch gear, transformer, and control equipment, maintaining electrical integrity under elevated voltage stress.
UL 94 V-0 Flame-Retardant Composite
Manufactured from a self-extinguishing, thermoset polyester compound that provides superior fire safety characteristics in accordance with industry standards.
Class F Thermal Endurance (155°C)
Designed to withstand continuous thermal loading without degradation, ensuring long-term reliability in hot, enclosed, or high-current environments.
Exceptional Tracking and Arc Resistance
High CTI (≥ 600) formulation minimises surface tracking and arcing, supporting compliant creepage performance under IEC 60664 and AS/NZS 61439.
High Mechanical Strength and Structural Stability
Strong compressive, tensile, and flexural properties deliver robust support for bus bars, terminals, and mounting components, resisting deformation under load.
Precision Brass Threaded Inserts
Consistent torque retention and long-term fastening integrity through molded-in brass inserts that resist pull-out, rotation, and thermal expansion mismatch.
Low Moisture Absorption
Maintains stable electrical and mechanical properties in humid, coastal, or industrial environments with minimal water uptake.
Chemical and Environmental Resistance
Resists oils, greases, solvents, salt spray, and airborne industrial contaminants, ideal for harsh electrical and mechanical installations.
Dimensional Stability Across Temperature Cycling
Thermoset construction will not soften, creep, or deform when exposed to heat, vibration, or mechanical stress.
Vibration-Tolerant Design
Suitable for rail traction systems, mining infrastructure, industrial machinery, and other high-vibration environments where fastening security is critical.
Multiple Standard Sizes and Variants
Offered in a wide range of standard heights (25–75 mm) and thread sizes (M6–M12), with additional variants or custom machining available upon request.
Stable Performance in Enclosed Switchboard Conditions
Maintains structural and electrical integrity in switch rooms, MCCs, power distribution boards, BESS enclosures, inverter housings, and industrial cabinets.
Low Smoke / Low Toxicity Material Composition
Halogen-free and asbestos-free, supporting safer installation environments and reducing hazardous emission risks.

Busbar Support & Separation
Used to mount, space, and mechanically isolate copper and aluminum bus bars in switchboards, distribution boards, and industrial power systems.
AS/NZS 61439 Switchboard Construction
Ideal for low-voltage switch gear assemblies, including main switchboards, distribution boards, control panels, and MCCs, supporting compliant creepage and clearance design.
Transformer & Rectifier Equipment
Provides stable, insulated support for auxiliary components, terminals, tap-changer assemblies, and power electronic interfaces.
Industrial Control Equipment
Suitable for motor control centers, automation cabinets, VSD and inverter assemblies, PLC panels, and electrical skids.
Rail Traction & Rolling Stock Systems
Performs reliably in environments subject to vibration, shock, and temperature variations. Suitable for traction systems, auxiliary converters, and electrical panels.
Defence Electrical Cabinets & Power Conversion
Appropriate for defence - grade power distribution units, communications systems, electrical enclosures, and equipment requiring high reliability and traceability.
Renewable Energy Infrastructure
Used within BESS enclosures, solar inverter cabinets, wind-farm control systems, and hybrid renewable infrastructure requiring robust electrical isolation.
Mining, Oil & Gas, and Heavy Industrial Machinery
Suitable for harsh environments with exposure to heat, dust, chemical contaminants, and heavy vibration, maintaining performance under mechanical load.
Utilities, Water Treatment & Infrastructure
Supports electrical systems in pumping stations, treatment plants, substations, and general utility machinery.
General Electrical Mounting
Effective as insulating spacers for terminal blocks, busbar supports, mounting plates, auxiliary devices, and equipment within electrical housings and machinery.

Switchboard Builders & Electrical Panel Manufacturers
For main switchboards, distribution boards, MCCs, control panels, and compliant AS/NZS 61439 assemblies.
Transformer & Power Equipment Manufacturers
Used in auxiliary systems, terminals, tap-changer assemblies, rectifier units, and custom power-conversion equipment.
Rail, Transport & Rolling Stock
Suitable for traction systems, onboard electrical cabinets, signalling equipment, and rail infrastructure where vibration resistance is essential.
Defence & Aerospace
Applied in military power distribution units, communication systems, ruggedised electrical enclosures, and platforms requiring traceability and reliability.
Renewable Energy & Battery Storage
Ideal for BESS enclosures, solar inverter systems, wind turbine control cabinets, micro grids, and hybrid renewable installations.
Utilities, Water Treatment & Infrastructure
Used in electrical control equipment for water treatment plants, pumping stations, substations, and utility-service infrastructure.
Industrial Machinery & Automation
Supports electrical assemblies in production machinery, automation cells, robotics, and heavy industrial equipment.
Mining, Oil & Gas, and Resource Industries
Performs reliably in harsh environments with heat, vibration, dust, corrosive atmospheres, and mechanical stress.
Automotive & Specialty Vehicle Systems
Suitable for EV charging infrastructure, auxiliary power units, and onboard electrical systems in specialty vehicles.
Electrical & Electronics Manufacturing
For insulated mounting, spacing, and support within control devices, power electronics, and test equipment.
Construction & Building Services
Used in commercial electrical cabinets, building switch rooms, HVAC control panels, and site power systems.
Marine, Ports & Offshore Equipment
Performs well in corrosive and moisture-laden environments requiring stable electrical insulation and structural integrity.

Long Service Life
The thermoset composite will not soften, deform, or creep under load, ensuring stable performance throughout the lifespan of the electrical assembly.
Improved Electrical Safety
High dielectric strength, excellent arc resistance, and superior tracking resistance reduce the risk of electrical faults, flash over, and surface deterioration.
Reliable Mechanical Support
High compressive and flexural strength deliver dependable support for bus bars, terminals, and power components under mechanical stress and vibration.
Consistent Fastening Performance
Molded - in brass inserts provide secure thread engagement and repeatable torque application, reducing maintenance and enhancing installation reliability.
Reduced Downtime & Maintenance Costs
Stable dimensional performance and resistance to environmental degradation reduce the need for replacement, inspection frequency, and corrective maintenance.
Enhanced Fire Safety
UL 94 V-0 material composition ensures self-extinguishing behavior, enabling safer installation in enclosed switchboards, control rooms, and industrial environments.
Resistance to Harsh Environments
Chemical, moisture, and contamination resistance make the SM Series suitable for coastal, industrial, mining, and corrosive atmospheres.
Optimized for AS/NZS 61439 Compliance
Supports compliant creepage and clearance spacing, material selection, and thermal considerations within switchboard assemblies.
Reliable Performance Under Thermal Load
Class F thermal rating (155°C) enables installation near heat-generating components without degradation of mechanical or electrical properties.
Vibration-Tolerant Design
Ideal for rail traction, mining machinery, mobile plant, and defence equipment where shock and vibration resistance are essential.
Versatility Across Designs
Wide range of thread sizes, heights, and body forms allows integration into existing and newly designed assemblies without custom tooling.
Local Availability & Support
MISCO Australia provides fast lead times, technical assistance, product traceability, and continuity of supply for long-term manufacturing programs.

Downloads

All supporting documents for this material are available for download, including the latest technical data sheet, safety data sheet, machining and processing guidance, compliance information, and relevant product brochures.

These controlled documents provide specifications, performance data, handling requirements, and application notes to assist with design, material selection, and fabrication.

Each file is maintained by MISCO Australia to ensure current, reliable information for switchboard, transformer, industrial, and defence grade applications.

Frequently Asked Questions

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