SZ1 - Thermal-Protectors with insulation cap
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Technical details of SZ1:
Every important detail at a glance!

Automatic resetting, defined current sensitive by an eligible integrated series resistor, with connection leads

  1. Contact type: normally closed

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

    70 °C - 160 °C

  3. Standard tolerance: ± 5K

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

    -35 K ± 15 K

  5. Operating voltage … AC / DC - available,
    values on inquiry: up to 250 V ~

  6. Rated voltage UAC: 250 V (VDE)

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

    4.0 A / 3,0000

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

    1.6 A / 3,000

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

  14. Suitable for protection class I or II: suitable

  15. Standard wiring connection: lead wire 0.25 mm² / AWG22

  16. Diameter Ød [mm]: 9.4 mm

  17. Heigth h [mm]: 5.0 mm

  18. Length of insulation cap: 19.0 mm

  19. Approvals available (according to design): IEC; ENEC; VDE