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      Top Picks
      • Siemens Circuit Breaker 5SM2121-0
      1/1
      Siemens Circuit Breaker 5SM2121-0
      $ 64 .45

      ✔ In Stock (Can ship in 5-7 days)

      Quantity
      MOQ : 5
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      The Siemens Circuit Breaker is high quality!
      RC unit for 5SY, 2-pole, type AC, In: 16 A, 10 mA, Un AC: 230 V
      Model
      product brand name SENTRON
      product designation RC unit
      design of the product Instantaneous
      product variations for 5SY
      General technical data
      number of poles 2
      size of installation devices / acc. to DIN 43880 1
      mechanical service life (switching cycles) / typical 10 000
      switching function / short-term delayed No
      overvoltage category III
      insulation voltage / rated value 460 V
      Supply voltage
      operational current / at AC / rated value 16 A
      supply voltage / at AC / rated value 230/400 V
      supply voltage / for testing equipment /
      minimum
      195 V
      operating frequency 50 Hz
      supply voltage frequency
      rated value 50 Hz
      Protection class
      protection class IP IP20, if the distribution board is installed, with connected
      conductors
      Dissipation
      power loss W
      for rated value of the current / at AC / in hot
      operating state / per pole
      2.5 W
      Current
      tripping fault current / rated value 10 mA
      residual current type AC
      operational current
      at 40 degrees centigrade / rated value 14.88 A
      at 45 degrees centigrade / rated value 14.88 A
      at 50 degrees centigrade / rated value 14.4 A
      at 55 degrees centigrade / rated value 13.92 A
      at 60 degrees centigrade / rated value 13.6 A
      at 65 degrees centigrade / rated value 13.28 A
      at 70 degrees centigrade / rated value 12.8 A
      Product details
      product feature / silicon-free Yes
      product extension / installable / supplementary
      devices
      Yes
      Connections
      connectable conductor cross-section / solid
      minimum 1.5 mm?
      maximum 25 mm?
      connectable conductor cross-section / stranded
      minimum 1.5 mm?
      maximum 25 mm

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      Reviews

      • S

        Stein Ove Sandvik

        May 01, 2025

        Siemens Circuit Breaker 5SM2121-0
        Great people, great dedication!
        Helpful
        Unhelpful
      • K

        Kristi Yokley

        Apr 17, 2025

        Siemens Circuit Breaker 5SM2121-0
        The site has been reliable, and the product quality is fantastic.
        Helpful
        Unhelpful
      • R

        Robert Owen

        Mar 19, 2025

        Siemens Circuit Breaker 5SM2121-0
        It's just as described, thanks!
        Helpful
        Unhelpful
      • D

        Derek Johnson

        Jan 08, 2024

        Siemens Circuit Breaker 5SM2121-0
        fast and easy
        Helpful
        Unhelpful
      • A

        Anonymous user

        Nov 25, 2022

        Siemens Circuit Breaker 5SM2121-0
        All was ok! No problems whatsoever.
        Helpful
        Unhelpful

      Siemens Circuit Breaker 5SM2121-0

      $ 64 .45
      Click here to view shipping costs.

      ✔ In Stock (Can ship in 5-7 days)

      Quantity
      MOQ : 5
      Payment Methods
      T/T pay VISA pay mastercard pay Diners Club pay Discover pay JCB pay American Express pay Stripe pay PayPal pay Google pay Apple pay Link pay venmo pay
      • Online Support 24/7

      • 12 Months Warranty for New Products

      • 30 Days Money Back Guarantee

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