MR-DO4 Modbus RTU module with 4 digital outputs

SKU: 1108361321
GTIN: 4250184135661
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143,00 €

MR-DO4 Modbus RTU 4 digital outputs

The Modbus module with 4 digital outputs was developed for decentralized switching tasks. It is suitable for switching electrical components, such as motors, contactors, lamps, louvres, etc. In this case, it is necessary to protect the relay contacts by appropriate load-dependent measures. The module is provided with a manual control for manually switching the relays. The outputs can be switched by means of standard registers via a Modbus master. Module address, bit rate and parity are set with two rotary switches on the front or by software. Suitable for decentralized mounting on DIN TH35 rail according to IEC 60715 in electrical distribution cabinets.


  • Modbus RTU  Address range   00 to 99
  • Bus interface RS485 (two-wire bus)
  • Transmission rate 1200 to 115200 bit/s
  • Operating voltage 24 V AC/DC +/- 10 % (SELV)
  • Current consumption 200 mA (AC) / 70 mA (DC)
  • Relative duty cycle 100 %
  • Output / contacts 4 changeover contacts (4PDT)
  • Output / switching voltage 250 V AC
  • Output / continuous current 5 A / output
  • Output / switching frequency 360 cycles/h
  • Display Green, red and yellow LED
  • Dimensions (W x H x D) 35 x 69.3 x 60 mm
  • Weight 95 g
  • Operating temperature range -5 °C to 55 °C
  • Storage temperature range -20 °C to 70 °C
  • Ingress protection for housing / terminal blocks IP40 / IP20


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