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    Sepam series 40

    Protection Relays for Demanding Applications

    13 types of digital current or voltage protection for demanding distribution systems, each one dedicated to a single application. Models available: Sepam S40, S41, S42, S50, S51, S52, S53, S54, T40, T42, T50, T52, M41, G40. Ready to use Sepam series 40 includes : One base unit, one 20 pin connector, one 6 pin connector, one current connector, one application, one operating language, one TCP/IP firmware option, optional modules, communication interface or core balance CT.

    Sepam series 40
    • Features

      Sepam series 40 includes 13 types of Sepam. One type of Sepam is dedicated to one application.

      • 3 types of User-Machine Interface
      • 4 current inputs
      • 3 voltage inputs
      • 10 logic inputs 8
      • 8 relay outputs
      • logic equation editor
      • 1 Modbus communication port
      • 16 temperature sensor inputs

      S5X applications are identical to S4X applications, with the following additional functions: 

      • Earth fault and phase overcurrent cold load pick-up 
      • Broken wire detection 
      • Fault locator

      T5X applications are identical to T4X applications, with the following additional functions:  

      • Earth fault and phase overcurrent cold load pick-up  
      • Broken wire detection  

      Standard Manufacturers Warranty: 2 years


      Simplicity and performance, headed in the right direction

      Protect your power system with full peace of mind using Sepam protection relays.

      • 20 years of experience in digital relays
      • A consistent range of relays organised according to applications


      • Substation incomer and feeder protection:  S40, S41, S42, S50, S51, S52, S53, S54:
      • Transformer protection: T40, T42, T50, T52
      • Motor protection:  M41
      • Generator protection: G40


      • Sepam with basic UMI
      • Sepam with integrated advanced UMI
      • Sepam with remote advanced UMI