3TK1742-0AF0

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Standards

IEC/EN 60947‑1, IEC/EN 60947‑4‑1, IEC/EN 60947‑5‑1 (auxiliary switches)

The contactors also comply with the requirements of NFC 63–110 and NFC 20–040.

The contactors are suitable for use in any climate. They are finger-safe according to IECВ 60529. Terminal covers may have to be fitted onto the connecting bars, depending on the configuration with other devices.

The contactors are used mainly for resistive loads (AC-1 and p.f. > 0.95). They are also suitable 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.

Control circuit

The solenoid coils of the 3TK10 to 3TK13 contactors (operating current up to 350В A) are designed as plug-in coils.

Surge suppression

The solenoid coils of the 3TK1В contactors can be connected at a later stage with RC circuits, see "Accessories and Spare Parts" в†’ "for 3TF, 3TK, 3TC Contactors and 3TH Contactor Relays and Miniature Contactor Relays" в†’ "Accessories and Spare Parts for 3TK1 Contactors".