Osram OT DIM 4050300943459 – Intelligent Analog Dimmer (1-10 V) With Constant Output Voltage

OT DIM Technical Data

OT DIM Electrical Data

Nominal wattage 144.00 W
Nominal output power 120 W
Nominal voltage 10…24 V
Nominal output voltage 10,5…24 V
Input voltage AC 10,5…24 V
Input voltage DC 10,5…24 V
Nominal current 5 A
Mains frequency 0 Hz
ECG efficiency 96 %
Device power loss 4 W
Galvanic isolation SELV equivalent
Operating frequency 135 Hz
Power loss in stand-by mode < 0.5 W

OT DIM Capabilities

Dimmable Yes
Dimming interface 1…10 V
Dimming range 0…100 %
Overheating protection Automatic reversible
Overload protection Automatic reversible
Short-circuit protection Automatic reversible
No-load proof Yes
Suitable for fixtures with prot. class II
Type of connection, output side Screw terminal
Type of installation Luminaire integration/Ceiling integration

OT DIM Dimensions & Weight

Length 172.00 mm
Mounting hole spacing, length 164,0 mm
Width 42.00 mm
Height 20.00 mm
Cable cross-section, input side 0.5…1.5 mm²
Cable cross-section, output side 0.5…1.5 mm²
Wire preparation length, input side 10 mm
Wire preparation length, output side 10 mm
Product weight 81.00 g

Colours & materials

Product colour White
Casing material Plastic
Body material Plastic

Temperatures & operating conditions

Ambient temperature range -20…+50 °C
Maximum temperature at tc test point 70 °C
Max.housing temperature in case of fault 100 °C
Permitted rel. humidity during operation 5…85 %

OT DIM Lifespan

ECG lifetime 50000 h

Additional product data

Encapsulated No
Number of control outputs 1

Certificates & Standards

Approval marks – approval CE / UR / VDE / VDE-EMC
Standards Acc. to DIN VDE 0875/CISPR 15/EN 55015 / Acc. to EN 55015 / Acc. to EN 61547 / Acc. to EN 61046 / Acc. to IEC 61347-2-2 / Acc. to UL 508
Protection class III
Type of protection IP20

Logistical Data

Temperature range at storage -25…85 °C

A Constant Voltage (CV) 1-10V dimmer controls low-voltage LED lights (typically 12V or 24V) by varying a low-voltage DC signal between 1V and 10V. It sets brightness linearly: 10V provides 100% brightness, while 1V (or 0V) reduces the light to its lowest dimming point (usually 10%).

How it Works in Constant Voltage Systems

Unlike constant current systems which feed a specific amperage to series-wired lights, CV dimmers are used for setups where lights are wired in parallel (like LED strips or under-cabinet puck lights).

The Signal: A standard 1-10V dimmer generates or receives a control signal on a separate pair of wires (usually grey and purple) from the main AC power.

Turning the Light Off: Because 1-10V signals usually only dim down to 10% brightness, most wall dimmers for this type feature a mechanical relay. When you turn the knob completely down to “off”, it cuts the main line voltage to the LED driver to ensure the light goes totally dark.

No Buzzing/Flicker: Since dimming is controlled by a low-voltage signal rather than chopping up the high-voltage AC mains power, this method avoids the buzzing or flickering commonly seen with traditional trailing-edge dimmers.

Why Choose 1-10V Dimming?

Scalability: You can put large numbers of lights and long runs of LED strip on the same dimming circuit without overloading the wall switch.

Reliability: It is a tried-and-tested protocol that is highly stable across long wiring distances.

Typical Applications

Commercial spaces, retail environments, and modern smart homes where robust, flick-free dimming of extensive LED strip runs is required.

Installations that utilize specialized 1-10V Constant Voltage drivers to power 12V or 24V LED tape.

OSRAM Licht AG is a German company that makes electric lights, headquartered in Munich and Premstätten (Austria). OSRAM positions itself as a high-tech photonics company that is increasingly focusing on sensor technology, visualization and treatment by light.[3] The company serves customers in the consumer, automotive, healthcare and industrial technology sectors.[4] The operating company of OSRAM is OSRAM GmbH.

Osram was founded in 1919 by the merger of the lighting businesses of Auergesellschaft, Siemens & Halske and Allgemeine Elektrizitäts-Gesellschaft (AEG). Osram was a wholly owned subsidiary of Siemens AG from 1978 to 2013. On 5 July 2013, Osram was spun off from Siemens, and the listing of its stock began on Frankfurt Stock Exchange on 8 July 2013.[5] Osram’s business with conventional light sources was spun off in 2016 under the name Ledvance and sold to a Chinese consortium.[6]

After a bidding war[7] with Bain Capital, Osram was taken over by Austrian company AMS in July 2020.[8][9][10] Since then, the company has operated under the name AMS Osram.[11]

The name is derived from osmium and Wolfram, German for tungsten. Both elements were commonly used for lighting filaments at the time the company was founded.

In 2020 ams AG acquired the German lighting, LED, and opto-semiconductor manufacturer OSRAM. Since then, the company operates under the name ams OSRAM.

The ams OSRAM portfolio includes light emitters, sensors and CMOS ICs with embedded software solutions as well as lighting systems and specialty lamps for automotive, industrial and entertainment applications. The company mainly address the automotive, industrial and medical markets, as well as selected fields of consumer electronics.