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The contactors are suitable: - For switching resistive loads
- For isolating systems with ungrounded or poorly grounded neutral conductors
- For system transfers when alternative AC power supplies are used
- Use as contactors which only carry current and do not have to switch in case of inductive loads – e.g. variable-speed operating mechanisms
- For switching mixed loads in distribution systems (e.g. for supplying heaters, lamps, motors, PC power supply units) with p.f. > 0.8 according to IEC 60947-4-1, test conditions for utilization category AC-1.
For a general description of sizes S00 to S3 of 3RT contactors, see "Power contactors for switching motors" в†’ "SIRIUS 3RT contactors, 3-pole up to 250 kW".
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