WRF04 BUS
Surface-mounted room sensor for temperature measurement in living rooms, offices etc. Designed for connection to control and display systems. For pre-wiring at the installation site, the back part with the connection terminals can be removed from the upper part of the housing. Optionally, it is possible to add operating elements for controlling HVAC systems.
| Measured values | temperature |
|---|---|
| Network technology | BACnet MS/TP, KNX (TP), LON FT (free topology), RS485 Modbus |
| Power supply | 15..24 V = (±10%) or 24 V ~ (±10%) SELV, KNX: supply via BUS |
| Power consumption | max. 0,6 W (24 V =) | 1,2 VA (24 V ~), LON: typ. 0,5 W (24 V =) | 1,7 VA (24 V ~), LCD LON: typ. 0,85 W (24 V =) | 2,0 VA (24 V ~) |
| Measuring range temp. | 0..+50 °C |
| Accuracy temperature | ±1% of measuring range (typ. at 21 °C) |
| Display | LCD 29x12 mm, monochrome, optional for RS485 Modbus |
| Enclosure | PC, pure white |
| Protection (IP) | IP30 according to EN 60529 |
| Cable entry | breaking points top/bottom, rear entry |
| Electrical connection | terminal block, max. 1,5 mm² |
| Ambient condition | -35..+70 °C, max. 85% rH non-condensing |
| Mounting | flush-mounted on standard EU box (Ø=60 mm), or to be mounted flat onto the surface using screws, with frame for surface mounting (accessory) or directly on the wall, base part can be mounted and wired separately |
| Notes | special painting available on request, enclosure stainless steel available (see options) |