19 Application Guide AS/NZS 947-3 3F Lockout Isolators Product Features M700 Door Interlock • Padlockable in ‘OFF’ only - safety requirement according to AS/NZS 947-3 • In ‘ON’ the door interlock is engaged - the cabinet cannot be opened • In ‘ON’ the door interlock can be defeated by using a tool - authorised entry only • The door interlock re-engages when the door is closed after authorised defeat in ‘ON’ • In ‘OFF’ and padlocked, the door interlock defeat is disabled - no access • When the door is opened the handle position is locked - assured alignment • Mechanical Position Indicator on the switch module - visible when the door is open • Internal Padlock Device on switch module • Robust, keyed, floating head on switch shaft KG Switch Disconnectors • 13/14mm contact gap. 690v - 1000v insulation • High AC3 and AC23 ratings • Large, finger proof IP20 box type terminals • Double break forced opening safety rated auxiliary contacts. Silver or Gold 1 to 6 N/O - N/C • Positive drive make and break main contacts. 3 to 8 poles OFF ON, 3 or 4 pole C/O • IEC 947-3 3F disconnector handle. Isolation is assured ‘OFF’ is ‘OFF’ General Features • Custom colours and engraving for escutcheon plates and header labels • Scratch-proof reverse engraving • IP65 dust and water protection • Robust, double insulated handle • Asymmetric shaft and interlock profiles ensure the handle position matches the switch position • Fixed length shaft ensures shaft must engage with the handle Get a Handle on Safety with your Eyes Closed Telephone now for a demonstration IEC 947-1 Equipment Suitable For Isolation - The Following Clauses Apply Clause 7.1.6 Additional constructional requirements for equipment suitable for isolation Clause 7.1.6.1 Additional constructional requirements Equipment suitable for isolation shall provide, in the open position (see 2.4.21) an isolation distance in accordance with the requirements necessary to satisfy the isolation function (see 7.2.3.1 and 7.2.2) (dielectric test) Indication of the position of the mains contacts shall be provided by one or more of the following means: (1) The position of the actuator (2) A separate mechanical indicator (3) Visibility of the moving contacts The effectiveness of each of the means of indication provided on the equipment and its mechanical strength shall be verified in accordance with clause 8.2.5 Clause 8.2.5 Verification of the effectiveness of indication of the main contact position of equipment suitable for isolation To verify the effectiveness of the indication of the main contact position, all means of indication of contact position shall continue to function correctly after the operational performance type tests, and special durability type tests (if performed). Switch Classifications All low voltage switches installed in Australia and New Zealand shall meet AS/NZS 60947 and carry the appropriate easily identifiable symbol depending on the switch classification. Switch A mechanical switching device capable of making and breaking currents under normal conditions, which may include specified overload conditions according to the duty, and abnormal circuit conditions such as short-ci cuit. (motor reversing switches, control switches, start delta switches, etc) Disconnector A mechanical switching device which in the open position, complies with the requirements specified for the isolating function (Off load isolator) Switch Disconnector A ‘Switch’ which in the open position, complies with the requirements specified for the isolating function (On load isolator) r Telephone 1800 567 948 for further technical information
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