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Siemens 3ru11 Thermal Overload Relays


SIEMENS 3RU11 Thermal Overload Relays with screw-type terminals for mounting onto contactor. (image illustrative only, device may differ from image)

Siemens thermal overload relays are designed to disconnect an appliance(e.g. motors & generators) from its power supply where otherwise damage would occur due to impermissible load conditions.

3RU11 Thermal Overload Relays are suitable for the protection of three-phase and single-phase AC and DC motors, if single-phase AC or DC loads are to be protected all three bimetal strips must be heated and all the current paths of the relay must be connected in series.

Find the table below as guidance to your requirements.


  • Auxiliary contacts: 1 NO = 1 NC
  • Manual/Automatic RESET
  • Switching position indication
  • TEST function
  • STOP button
  • Phase failure sensitivity
  • Integrated sealable cover
  • CLASS 10



Part NumberSizeQuantityDelivery Surcharge*Price (ex Vat)Quantity
EAD129 26-1GB0 4.5-6.3A 1 Cross £
EAD130 26-1HB0 5.5-8A 1 Cross £
EAD131 26-1JB0 7-10A 1 Cross £
EAD132 26-1KB0 9-12.5A 1 Cross £
EAD133 26-4AB0 11-16A 1 Cross £
EAD134 26-4BB0 14-20A 1 Cross £
EAD135 26-4CB0 17-22A 1 Cross £
EAD136 26-4DB0 20-25A 1 Cross £
EAD139 36-4DB0 18-25A 1 Cross £
EAD140 36-4EB0 22-32A 1 Cross £
EAD141 36-4FB0 28-40A 1 Cross £
EAD142 36-4GB0 36-45A 1 Cross £
EAD143 36-4HB0 40-50A 1 Cross £
EAD145 46-4JB0 45-63A 1 Cross £
EAD146 46-4LB0 70-90A 1 Cross £
EAD147 16-0AB0 0.11-0.16A 1 Cross £
EAD159 16-1CB0 1.8-2.5A 1 Cross £
EAD164 16-1HB0 5.5-8A 1 Cross £

*Delivery Surcharge will be applied upon checkout

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