Data Sheet for Product

Page 2 of 3 Siemens Industry, Inc.
Application Programs
25 S1 Brightness Controller 909601
The following functions may be selected in ETS:
• Type of control (On only, Off only, On/Off or
constant light level)
• When constant light level control is selected, the
number of additional (slave) groups of luminaires
which can be dimmed to different values
• If the measured brightness value is transmitted at
a time interval or only after a change of value
• If the switching and dimming commands are
transmitted at a time interval,
• If the setpoint value for brightness control is set
using a parameter or a communication object,
• Controller behavior after a power loss.
The setpoint value calibration to the currently
measured brightness value can be triggered through a
special communication object.
Brightness control may be temporarily deactivated to
permanently set the light level brighter or darker.
Specifications
Power Supply Bus voltage: 21 to 30 Vdc (Class 2) provided through the bus line
Bus current: Maximum 15 mA
Measuring Range 0 to 2000 Lux (with a reflection degree from the working surface of about 30%)
Control Elements
One mode button:
for toggling between normal operating mode and addressing mode.
Display Elements
One red LED (beneath the optical fiber rod):
for displaying normal operating mode (OFF) and addressing mode (ON), and for
use during commissioning or user adjustment through an IR remote control.
Connections
Bus line:
Bus terminal (red–black): 20 to 18 AWG solid copper wire
(Ø 0.6 to 0.8 mm single core).
Strip approximately 3/16"(5 mm) of insulation.
Physical Specifications
Brightness Controller UP 255/11
Housing and cover: Plastic
Dimensions without cover (L × W × H): 1.97” × 1.38” × 0.55”
(50 mm x 35 mm x 14 mm)
Weight: Approximately 1.06 oz (30 g) •
Installation: in a junction box that complies with DIN 49073–GB-T-M1E1 (02/90),
Ø 2.36” (60 mm), depth 1.57” (40 mm). May also be attached directly to the
mounting surface with screws.
Brightness Controller AP 255/12
Housing: Plastic
Dimensions: Ø 2.95” (75 mm), height 1.02” (26 mm)
Weight: Approximately 1.76 oz (50 g)
Installation: Surface mounting
Electromagnetic Compatibility Complies with EN 50090-2-2.
Environmental Conditions Ambient operating temperature: 23°F to 113°F (-5°C to 45°C)
Storage temperature: -13°F to 158°F (-25°C to 70°C)
Relative humidity (non-condensing): 5% to 93%
Certification KNX/EIB certificate
CE marking Complies with the EMC regulations (residential and commercial/industrial
buildings), and low voltage regulations