Building Automation Moduly-Rozszerzenia-1AO-6DO - STERKRAK
Polski / English
Our company operates in the following industries:
  • intelligent buildings, homes
  • industrial automation
  • distribution of IT equipment
  • electronics
  • air conditioning and ventilation
Produced by our company modules work with HVAC controllers, PLC, in central heating systems, utility water, automation of boilers, ventilation, air conditioning and Building Management Systems.
New products

The timer module MWI coupling the pulse transmitter with executive systems.


Our offer has been extended with the S2B2232FEV2 Bluetooth transmission module. It enables wireless connection of two devices equipped with an RS-232 interface, using the Bluetooth.

Our offer has been expanded with 1AO / 1DO relay modules:

Relay modules MP22, MP33, MP44, MP55

Relay modules, used to work with controllers as actuators, switching peripherals greater power via the analog outputs of the controller.

  • MP22: 2 channels 1AO/1DO
  • MP33: 3 channels 1AO/1DO, functional equivalent of the USS11 and the MCE3
  • MP44: 4 channels 1AO/1DO
  • MP55: 5 channels 1AO/1DO
Following the suggestions of our contractors, from from January 10, 2018, we additionally introduced the possibility of powering the following modules: PCU5, PCU5I, PCU6, PCI5, PCI5I and PCI6 with constant voltage.

We have enriched our offer with new extension modules with two (1AO/2DO) and three relays (1AO/3DO). Part of them are the successors of the USSxx and URACxx series. They are characterized by smaller dimensions with the same switching power contacts.

TypeNew modelFunctional equivalents
1AO/2DO MS101 None
MS2 None
MS12 None
MS112 USS112 and USS112P
MS121 USS121 and USS121P
1AO/3DO PAC3 None
MS123USS123 and USS123P