Automation Products
Siemens RDF302/VB room thermostat
We are providing a Premium Quality range of Siemens RDF302/VB room thermostat in India.
RDF302/VB Flush mount MODBUS room thermostat for 2-/4-pipe FCU with on/off outputs, 2x universal input optional electrical heater application, fit for square conduit boxes, BLACK
- Modbus communications
- For heating and/or cooling applications
- 2 or 3-position control outputs
- Output for 1-speed or 3-speed fan
- 2 multifunctional inputs for keycard contact, external room / return air temperature (QAH11.1, QAA32), heat / cool changeover, operation mode changeover, window contact on/off, dewpoint monitor, electrical heater enabled, fault contact
- Operating modes: Comfort, Economy and Protection
- Automatic or manual heating/cooling changeover
- Adjustable commissioning and control parameters
- Minimum and maximum setpoint limitation
- Color of housing: black (RAL 9004)
- Backlit display
Application selectable:
- 2-pipe system
- 2-pipe system with electrical heater
- 4-pipe system
Specifications
| Operating voltage | AC 230 V |
| Power consumption | 7 VA |
| Setpoint setting range | 5…40 °C |
| Switching differential | 0.5…6 K |
| Communication | Bus: Modbus RTU (RS 485) |
| Analog inputs, number | 2 |
| Relay outputs | Fan: Normally open contact , Valve: Normally open contact , Non floating |
| Relay outputs, number | 5 |
| Relay output, switching voltage | 230 V |
| Relay output, switching current | 5 (2)A |
| Type of fixing | Recessed rectangular conduit box BS4662 with fixing centres of 60.3 mm |
| Degree of protection | IP30 |
| Dimensions (W x H x D) | 86 x 86 x 57 mm |
| Color | Black |
