SY6 - Thermal-Protectors with insulation cap
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Technical details of SY6:
Every important detail at a glance!

Automatic resetting, for star point connection to protect a three phase motor

  1. Contact type: normally closed

  2. Nominal switching temperature (NST) in steps of 5 °C:

    70 °C - 180 °C

  3. Standard tolerance: ± 5K

  4. Reset temperature range below NST (UL / CSA):

    depends on NST

  5. Operating voltage … AC / DC - available,
    values on inquiry: up to 480 V ~

  6. Rated voltage UAC: 3 x 440 V / 50/60 Hz

  7. Rated current AC cos φ = 1.0 (ohmic load) / switching cycles:

    2.5 A / 10,000
    6.3 A / 3,000*

  8. Rated current AC cos φ = 0.6 acc. to IEC 60730-2-9 / switching cycles:

    1.6 A / 10,000

  9. Contact bounce time: < 1 ms

  10. Contact resistance (acc. to MIL-Std. R 5757): < 50 mΩ

  11. Impregnation resistance with- or without resin
    (acc. to requirements)*: suitable

  12. Vibration proof at 10 … 60 Hz: 100 m/s²

  13. Pressure stability of housing *: 600 N

  14. High voltage insulation (not C - versions): 2 kV

  15. Suitable for protection class I or II: suitable

  16. Standard wiring connection: lead wire 0.5 mm² / AWG 20

  17. Diameter: 9.8 mm

  18. Heigth: 7,6 mm

  19. Length of insulation cap: 17.0 mm

  20. Approvals available (according to design): UL; CSA