Building Technologies

In/Out module REL02 - Qbus

The REL02 is a decentralmodule, suitable for switching 2 circuits and contains a conector to which two potencial free inputs (e.g. push buttons) can be connected. The module fits in a standard flush-mouted socket which guarantees easy connectionwith potencial push-buttons and the outputs.

The relay module has 2 potencial-free, normally open contacts which can each connect max. 8A at 230V (cos ɸ = 1) / 30Vdc.
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The relay module does not have any specific function. It can handle all switching functions: mono-stable (bell), bi-stable (on/off), timer, interval, thermostat output, etc.
For motor (shutter/blind/curtain…) control, the decentral shutter module ROL01 or the DIN-rail shutter modules ROL02(P) or REL08 must be used. For inductive loads (many fluorescent lights) with a high capacity or bipolar applications, contactors need to be added. The relay module contact will then activate the coil of the contactor.

Each module has a unique serial number enabling programming anywhere and anytime. All programming remains internally stored in a nonvolatile memory. After a voltage cut-off, the outputs return to their latest position.

The maximum length of the conductor between the REL02 and the potencial free input is 20 meters. The cable type or its section is irrelevant. The input contacts can be selected and set using the Qbus configuration software:
  • Push button – botton that is open when inactive – only active when pushed shortly (e.g. doorbell);
  • Normal open – contact that is open when inactive;
  • Normal closed – contact that is closed when inactive;
  • Switch – when a single-pole conventional switch is connected to the input.
  • Power supply: BUS;
  • Working temperature range: -10 to 50 ºC;
  • Storage temperature range: -10 to 60ºC;
  • Maximum humidity: 93%, no moisture condensation;
  • BUS load: At rest: 5mA without LEDs, 8mA with LEDs at nominal 13,8V. During activation;
  • 16mA without LEDs, 20mA with LEDs at nominal 13,8V;
  • Max. Installation altitude: 2000 meters.
  • Decentral module;
  • Standard flush-mouted;
  • 2 potencial-free normally open single contacts;
  • Rated current 8mA.
  • Electrical installers;
  • Construction companies;
  • Electrical design offices.
F.Fonseca is the representative of Qbus in Portugal.
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