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Tag: AS/NZS 61439

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11 May, 2026
Posted by: Chris Wilson
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MSB vs MCC: which does your project need?

Compare main switchboards and motor control centres by function, circuits, controls and project scope, and see when an installation needs both.

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11 May, 2026
Posted by: Chris Wilson
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What is a motor control centre?

An introduction to motor control centres: starters, protection, controls, drive arrangements and how an MCC supports an industrial process.

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30 Mar, 2026
Posted by: Chris Wilson
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How to choose a switchboard IP rating

Choose switchboard ingress protection for dust, rain and washdown while accounting for heat, condensation, corrosion and cable entries.

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23 Mar, 2026
Posted by: Chris Wilson
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Switchboard forms of separation: Form 1 to Form 4b explained

Understand switchboard forms of separation, the difference between Form 4a and 4b, and what to specify for access, terminals and maintenance.

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15 Mar, 2026
Posted by: Chris Wilson
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EPLAN Pro Panel: clearer switchboard design and documentation

How EPLAN schematics and 3D panel layouts support switchboard coordination, manufacturing preparation, revision control and project handover.

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21 Jun, 2024
Posted by: Chris Wilson
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What is a main switchboard? MSB meaning explained

Learn what a main switchboard does, how its ratings and layout are established, and what to consider when specifying an MSB for an NZ site.

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18 Jan, 2023
Posted by: Chris Wilson
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Industrial switchboard maintenance: building a useful plan

Build a switchboard maintenance plan around manufacturer instructions, condition, environment, criticality and safe shutdown access.

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23 Nov, 2016
Posted by: wilson
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Six switchboard safety and usability checks

Six practical checks for switchboard ratings, protection, access, identification, documentation and monitoring, with project-specific requirements.

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