What is Type X Switchpanel?

Type X Switchpanel is a paper-reinforced phenolic composite sheet, manufactured under heat and pressure to produce a dense, rigid electrical insulation material used in switchboards, transformers, and control panels.

What makes Type X suitable for switchboard applications?

It combines high dielectric strength, arc resistance, and mechanical rigidity, making it ideal for busbar barriers, backboards, and insulating supports in low-voltage switchgear assemblies.

Is Type X Switchpanel flame-retardant?

Yes. It is rated UL 94 HB, meaning it is self-extinguishing and does not support flame propagation, suitable for internal switchboard environments.

How does it compare to GPO-3 or FRP composites?

Type X is lighter, easier to machine, and more cost-effective than glass-reinforced composites such as GPO-3 or FR4. However, it is typically used where lower mechanical strength and lower thermal endurance are acceptable.

Can Type X Switchpanel be CNC machined?

Yes. It machines cleanly using standard carbide tooling. MISCO Australia provides CNC cutting, drilling, routing, and profiling services to customer drawings or specifications.

Does Type X contain asbestos or halogens?

No. MISCO Australia’s Type X sheets are asbestos-free, halogen-free, and RoHS / REACH compliant.

What are the main standards Type X complies with?

It meets or exceeds AS/NZS 61439, NEMA X / XP, IEC 60893-3-4 PF CP 201, and MIL-I-24768/15 PBM-P requirements.

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TYPE X SWITCHPANEL

Type X Switchpanel is a high-performance, paper-reinforced thermoset composite formulated with premium phenolic resin for electrical insulation, mechanical strength, and long-term stability in switchboard and industrial environments. Engineered for low-voltage and medium-voltage systems, Type X delivers a reliable combination of rigidity, dielectric performance, thermal endurance, and machinability—making it a trusted material for structural and insulation components in electrical assemblies.

Manufactured under controlled curing conditions, Type X exhibits excellent dimensional stability, low moisture absorption, and consistent mechanical properties, even in demanding service conditions involving heat, vibration, and electrical stress. Its phenolic composition provides natural flame resistance, low smoke generation, and strong resistance to tracking and arcing, supporting safer system design in modern switchboards.

SPECIFICATIONS

Product Form

Sheets, rods, tubes, machined components, and custom profiles

Standard Colours

Black and Grey (Custom colours available on special order subject to MOQ.)

Sheet Sizes

2440 X 1220 (Nominal size)

Thickness Range

3 mm to 12mm – Larger thickness are to order

Compliance

AS/NZS 61439
NEMA Grade X / XP
IEC 60893-3-4 Type PF CP 201
MIL-I-24768/15 Type PBM-P
UL 94: HB
ASTM D149 / D790 / D695 / D257
RoHS (EU Directive 2011/65/EU)
REACH (EC 1907/2006)
Halogen-Free / Asbestos-Free
Low Smoke / Low Toxic Fume Emission
Environmentally Responsible Manufacture
Batch Traceability Maintained
Certificate of Conformance (CoC) Available
Defence Certificate of Conformance (DCoC) Available
Manufactured under ISO 9001:2015 Quality Management Principles
Accepted for Use in Defence, Power Generation, Transport & Renewable Energy Infrastructure

MECHANICAL PROPERTIES

ELECTRICAL PROPERTIES

THERMAL PROPERTIES

High Dielectric Strength
Reliable electrical insulation for LV and MV switchboards, distribution equipment, and control assemblies.
Strong Mechanical Performance
Excellent rigidity, compressive strength, and dimensional stability under load and vibration.
Phenolic Resin System
Naturally flame-resistant with low smoke generation and strong arc-track resistance.
Low Moisture Absorption
Maintains electrical integrity in humid, damp, or condensation-prone environments.
Excellent Machinability
Clean routing, drilling, profiling, and CNC machining with stable edges and minimal tool wear.
Thermal Endurance
Performs reliably across typical electrical equipment operating temperatures.
Stable in Harsh Service Conditions
Resistant to heat, mechanical shock, and electrical stress without loss of insulating performance.
Cost-Effective & Proven Material
Long-serving, industry-standard insulating composite used widely in Australian switchboards.
Environmentally & Electrically Safe
Free from asbestos and halogens, with low smoke/low toxicity characteristics.
Available in Multiple Thicknesses & Formats
Supplied in sheet or precision-machined components to customer drawings.

LV & MV Switchboards
Internal partitions, arc-containment barriers, busbar separation plates, switch gear backing boards, mounting panels, and insulating frameworks designed to improve safety, clearance, and creepage performance.
Electrical Distribution Assemblies
Interface boards, terminal insulation plates, fuse mounting plates, current-transformer supports, cable segregation plates, and protective shrouds for safe operation in confined electrical spaces.
Control, Automation & MCC Panels
Non-conductive mounting substrates for relays, PLCs, drives, breakers, and instrumentation equipment; support plates that prevent tracking, arcing, and electrical flash over.
Transformer, Motor & Generator Components
Insulating spacers, end plates, wedges, coil supports, slot liners, mounting plates, and phenolic precision parts used in high-temperature winding assemblies.
Custom CNC Machined Insulation Parts
Precision-cut plates, machined blocks, profiles, cleats, housings, brackets, and bespoke insulating structures manufactured to customer drawings for OEM integration.
Industrial Machinery & Equipment
Structural insulators, wear-resistant phenolic panels, machine backing plates, and non-metallic supports used to mechanically isolate live equipment.
Power Generation & Renewable Energy
Inverter insulation boards, turbine control insulation components, battery isolation plates, and switch gear elements for wind, solar, hydro, and thermal generation assets.
Rail, Rolling Stock & Tunnel Infrastructure
Vibration-resistant insulating plates, mechanical isolation boards, and non-conductive structural components used in electrical enclosures and traction systems.
Mining, Oil & Gas, Petrochemical & Heavy Industry
Insulating plates and components that withstand contamination, moisture, mechanical shock, and thermal cycling in harsh industrial environments.
HVAC, Heating & Thermal Equipment
Insulating plates for cabinets, resistance banks, heaters, and thermal control assemblies where temperature and electrical isolation are critical.
Fabrication, Tooling & Workshops
Jigs, fixtures, templates, drill guides, and non-sparking phenolic tools ideal for electrically sensitive environments.

Switchboard Builders & Electrical Distribution
Manufacturers of LV/MV switch gear, control panels, MCCs, busbar systems, and distribution equipment requiring reliable insulating and structural materials.
Transformer, Motor & Generator Manufacturers
OEMs and rewind shops producing insulating plates, spacers, supports, and phenolic structural components for rotating and static equipment.
Power Generation & Renewable Energy
Coal, gas, hydro, solar, wind, and battery-storage systems using Type X for insulating boards, inverter panels, turbine control insulation, and switch gear components.
Automation, Control Systems & Industrial Machinery
Machine builders and integrator that require non-conductive structural plates, mounting substrates, and protective insulating components.
Rail, Rolling Stock & Tunnel Infrastructure
Electrical isolation components for traction systems, substations, signalling equipment, and high-vibration installations.
Mining, Metals, Smelting & Heavy Industrial Processing
Harsh-duty environments where heat, moisture, vibration, and contamination demand robust insulating materials.
Oil, Gas, Petrochemical & Refining
Equipment insulation, non-conductive plates, and phenolic structural components resistant to oils, fuels, and industrial contaminants.
Aerospace, Defence & Military Systems
Reliable phenolic composite components used in secure electrical systems, rugged equipment, and high-integrity insulation structures.
Automotive, EV & Heavy Vehicle Manufacturing
Thermal and electrical isolation plates, battery insulating boards, and structural non-conductive components.
HVAC, Heating & Thermal Control Equipment
Phenolic insulating panels suited for heating units, resistance banks, and temperature-controlled industrial systems.
Electronics, Semiconductor & High-Tech Manufacturing
Non-conductive plates, mounting boards, and insulating fixtures for precision equipment and production lines.
Data Centres, UPS & Critical Infrastructure
Non-conductive panels and structural boards used in electrical enclosures, switch gear, and power distribution systems.

High-Integrity Electrical Insulation
Provides reliable dielectric protection for LV/MV assemblies, reducing the risk of flash over, tracking, arc propagation, and electrical failure.
Exceptional Mechanical Strength & Rigidity
The paper-reinforced phenolic system delivers strong compressive, flexural, and impact performance—ideal for panels, barriers, and structural insulating plates under continuous mechanical stress.
Naturally Flame-Resistant Phenolic Matrix
Offers inherent fire performance without halogenated additives, producing low smoke and low toxicity—critical for enclosed switchboards, MCCs, and confined industrial spaces.
Stable Under Thermal Cycling
Maintains mechanical and electrical properties across repeated heating and cooling cycles common in switch gear, transformers, motors, and high-load electrical equipment.
Low Moisture Uptake for Long-Term Stability
Ensures dimensional accuracy, mechanical strength, and dielectric reliability even in humid workshops, coastal installations, or outdoor environments.
Predictable CNC Machining Characteristics
Machines cleanly and consistently, supporting fine profiles, tapped holes, rebates, grooves, and precision machining without delamination.
Long Service Life in Harsh Conditions
Resistant to ageing, surface degradation, thermal stress, and mechanical fatigue, providing dependable performance over decades in industrial applications.
Chemical and Contaminant Resistance
Phenolic formulation withstands oils, lubricants, solvents, coolants, grease, dust, and typical industrial contaminants, helping to preserve electrical integrity.
Economical Engineering Material
Offers a high performance-to-cost ratio, making it a preferred insulating material for large-format switchboard panels and high-volume fabrication.
Non-Conductive Mechanical Alternative to Metals
Ideal where steel or aluminum would present conductivity, corrosion, or weight challenges; improves safety while simplifying system design.
Consistent, Reliable Supply & Compliance
Supported by MISCO Australia’s batch traceability, quality assurance, and adherence to relevant electrical and industrial standards.
Environmentally Responsible Composition
Asbestos-free, halogen-free, and manufactured with lower-smoke phenolic systems to meet modern environmental and WHS expectations.

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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