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ATyS p

from 125 to 3200 A

ATyS p
  • ATyS p is a range of three-phase automatic changeover switches with positive break indication. They incorporate all the functions offered by the ATyS g, as well as functions designed for power management and enabling communication.
  • In automatic mode they enable the monitoring of, and the on load changeover switching between, two power supply sources, in accordance with the parameters configured via pushbuttons and an LCD screen. They are intended for use in low voltage power systems where interruption of the load supply is acceptable during transfer.
Recording of events
  • ATyS p switches enable effective monitoring of your installation thanks to timestamped event recording. Events can be retrieved and read via the communication system.
Optional communication modules
  • The ATyS p offers communication functions thanks to the addition of optional modules, such as the RS485 module for Modbus communication or the Ethernet module, which includes a Webserver.
Configuration software
  • Software (Easyconfig) is available enabling the ATyS p parameters to be easily configured and the existing configuration to be saved.
Power measurements
  • ATyS p products are particularly suited to energy management and monitoring.
  • In addition to their integrated power and energy measurement functions, programmable inputs/outputs can be utilised to control load shedding based on a load level or tariff.
Generator periodic startup programming (option)
  • ATyS p switches offer additional functions for maintenance. They include the programmed generator starting function which allows the starting dates and operating times to be configured.


Front panel

Front panel










Plug-in modules

ATyS p

RS485 JBUS/MODBUS® communication
  • RS485 ink with JBUS/MODBUS® protocol (speed up to 38400 bauds)

2 inputs – 2 outputs
  • Each module has 2 programmable inputs and 2 programmable outputs available.

Ethernet communication
  • Ethernet link with MODBUS/TCP or JBUS/MODBUS RTU over TCP
  • Embedded Ethernet Webserver software

Ethernet communication with RS485 JBUS/ MODBUS gateway
  • Ethernet link with MODBUS/TCP or JBUS/MODBUS RTU over TCP
  • Connection of 1 to 247 RS485 JBUS/MODBUS slaves
  • Embedded Ethernet Webserver software

Analogue outputs
  • Outputs assignable to: 3l, In, 3V, 3U, F, ±∑P, ±∑Q, ∑S

Pulse outputs
  • 2 configurable pulse outputs (type, weight and duration) on ±kWh, ±kvarh and kVAh

Number of usable modules per product:

  • A maximum of four modules can be fitted to each ATyS p, however with the installation of either Ethernet communication module only two additional modules can be installed. Only one pulse output, one analogue output, and communication module can be installed.