IO-box - SIPROTEC 6MD61 - side view


The SIPROTEC 6MD61 enables in a simple, easy way to enhance the number of binary inputs and outputs in the switchgear. It can be used directly in the bay together with other SIPROTEC4 units and also together with SICAM PAS to serve as a central process connection. The IO-Box is based on the SIPROTEC 6MD63 and 6MD66 series, so it can be easily integrated in systems with other SIPROTEC 4 units. The IO-Box supports a wide range of demand for additional binary inputs (BI) and binary outputs (BO), starting from 20 BI+10 BO and going up to 80 BI+53 BO. All important standard communication protocols are supported. With IEC 61850-GOOSE communication, a direct information interchange with other SIPROTEC units is possible. For simplification and cost reduction, the IO-Box is available only without automation (CFC), without keypad and without display.

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Features & functions


Monitoring functions

  • Operational measured values (only 6MD612)
  • Energy metering values (only 6MD612)
  • Time metering of operating hours
  • Self supervision of relay

Communication interfaces

  • IEC 61850 Ethernet
  • IEC 60870-5-103 protocol
  • Service interface for DIGSI 4 (modem)
  • Front interface for DIGSI 4
  • Time synchronization via IRIG B / DCF77

Further Functions

  • Standard SIPROTEC hardware for easy configuration with DIGSI
  • Full EMC compliance like all other SIPROTEC devices
  • Housing can be used for surface mounting or flush mounting (units are always delivered with two mounting rails for surface mounting. These rails can be dismounted for flush mounting)
  • Three types with different amount of inputs and outputs available


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