94 Mains Off Generator (MOG) Installation FAQ’s according to AS/NZS 3010:2005 Q Can I replace a permanently connected main switch with a MOG switch? A A permanently connected changeover device (MOG switch) with an intermediate OFF position may replace a main switch. Q Do I need to switch the generator neutral on permanently wired generators? A When a generator neutral is permanently wired to the main neutral bar and a MEN link is provided, there is no requirement to switch the generator neutral. The main supply neutral is not switched. Q Do I need to switch the generator neutral on removable generators, i.e., connected with an appliance inlet? A When a generator is not permanently wired there is a requirement to switch the generator neutral. The main supply neutral is not switched. Q Do I need to switch neutrals where there is no MEN link? A The generator neutral is switched. The mains supply neutral is not switched. Q Why do I need an Early Make Late Break Neutral? A The neutral must not close after the main contacts, or open before the main contacts. In practical terms, a late make early break contact development is required. Q Is it possible to have a Multi-source changeover switch? A Switches are available for multi-source installations. e.g., mains, generator, solar, turbine. Q Can it be mounted in modern domestic superboards? A Switches are available with MCB fronts and shallow handles which fit inside modern superboards. Mains Off Generator Switch Ordering Data Mounting Data Electrical data Supply current (Amps) Mains cable size Switched neutral on the generator yes / no (See FAQ’s above) Panel mount Base mount with long shaft and door clutch DIN mount with MCB front plate Enclosed indoor / outdoors With an appliance inlet plug
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