Brochure

Physical sensors
with KNX connection
Brightness
339
Siemens Switzerland Ltd www.siemens.com/gamma 2021
Smart Infrastructure
11
Brightness sensor with constant light level controller
 Mixed light measurement
 Ceiling mounting on a flush-mounting box with 60 mm diameter and min. 40 mm depth or in a
housing for surface-mounting (to be ordered separately)
 Programming button reachable from front
 Integrated IR decoder for S 255/11
 Integrated 2-point control (switching)
 Constant light level control for main group of luminaries and up to 4 additional groups of luminaries
incl. automatic calibrating
Data sheet
A6V10489482
Dimension (Ø x H)
88 x 63 mm
UP 255D21
Stock no.
Product no.
5WG1255-2DB21
UP 255D21
Dual sensor for brightness measurement, temperature measurement, sun
protection control, lighting control
 Brightness measurement, temperature measurement, sun protection control, lighting control
 For the detection and transmission of brightness and temperature
 Temperature measuring range -25 °C...+55 °C
 Brightness measuring range 1 Lux...100 kLux
 Horizontal sensing angle -60°...+60°, vertical -35°...+66.5°
 For the control of switch, dimming and shutter/blind actuators, depending on the ambient luminosity
and/or ambient temperature
 One sun protection channel for the automatic control of sun protection equipment, with
 Starting and stopping of automation by means of an object or a dusk threshold
 Up to three brightness thresholds for determining the height and position of the shutters/blinds or
roller shutters
 Optional teach-in of dusk thresholds and brightness thresholds by means of a teach-in facility
 Blocking object for the temporary deactivation of the sun protection channel function
 Up to four universal channels for the control of switch, dimming and shutter/blind actuators,
depending on ambient luminosity and/or temperature. Optionally available with:
 Threshold switches for brightness
 Threshold switches for temperature
 Threshold switches with logical combination of brightness and temperature
 Optional teach-in of brightness threshold for each universal channel by means of an associated teach-
in facility
 Deactivation option for each universal channel by means of an associated blocking object (1 bit)
 Optional second object for transmission of a second telegram on fulfillment of threshold conditions
 Bus-powered electronics
 Integrated bus coupling units
 Bus connection via bus terminal
 Surface mounting
 Degree of protection: IP54
Data sheet
A6V10416100
Dimensions (W x H x D)
72 x 110 x 54 mm
AP 254/02
Stock no.
Product no.
5WG1254-3EY02
AP 254/02