AS C339-1967

Note - due to the age of this archived document, available information is limited therfore this record is incomplete. For further details, please phone our Customer Service Centre on 131 242 (Intl +61 2 8206 6010) or email sales@saiglobal.com.

This Standard applies to manually operated 3-pole oil switches for three-phase a.c. systems. The standard ratings are set out in Table 1. It does not apply to switches that can be opened or closed by power, to oil isolators, to oil selectors, to combinations of switches and fuses in series, or to switches intended for making and breaking circuits frequently at short intervals (e.g. starting switches). Neither does it include the additional requirements necessary in connection with flameproof enclosures.