OSRAM OPTOTRONIC OT 12/230-240/10 - 10.5V DC (12W) LED Power Supply for LINEARlight, BACKlight and COINlight Modules
The OSRAM OPTOTRONIC OT 12/230-240/10 is a constant voltage transformer/driver designed to power OSRAM's professional 10V LED systems, such as LINEARlight , LINEARlight Flex , BACKlight , and COINlight . It offers a stabilized output of 10.5V DC ± 0.5V with a maximum power rating of 12W and is optimized for reliable, long-life installations in linear lighting, signage, displays, and backlighting. Its compact size ( 109 × 50 × 35 mm ), screw terminals, and compatibility with the OSRAM CONNECT accessory ecosystem facilitate easy mounting, wiring, and integration into luminaires and profiles.
To maximize installation safety, it incorporates reversible electronic protection against short circuits, overloads, and overtemperature; it is "no-load proof" (it can remain without a load on the secondary side) and guarantees galvanic isolation between the primary and secondary sides. It operates within a wide ambient temperature range and achieves a power factor of 0.9 . Thanks to its Class II protection rating and IP20 rating , it is designed for independent mounting indoors or in protected enclosures.
Main features
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Technology: Constant voltage power supply for professional LEDs (10V)
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Stabilized output: 10.5 V DC ± 0.5 V; max. power 12 W; partial load range 0.4–12 W
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Mains input: 230–240 V~; 50–60 Hz; typical consumption 0.07 Aef
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Safety and protection: short circuit, overload and overtemperature protection with automatic reset; no-load operation permitted; 3 kV isolation between primary and secondary
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System compatibility: OSRAM LINEARlight , LINEARlight Flex , BACKlight and COINlight modules; integration with CONNECTsystem for quick wiring
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Construction: Class II, IP20, screw terminals, max. secondary wiring length 4 m
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Electrical performance: power factor 0.9; output line ripple ≤ ±0.2 V
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Operating environment: −20 °C to +50 °C
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Dimensions (L × W × H): 109 × 50 × 35 mm; casing color: white
Product benefits
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Stable and safe power supply for 10V LED strips and modules, with regulated output that protects the lifespan of the LEDs.
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Easy installation thanks to screw terminals, compact format and CONNECTsystem accessories (power supplies and connectors).
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Maximum reliability due to its reversible electronic protections and galvanic isolation.
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Versatile mounting as a standalone Class II unit; suitable for integration into profiles, linear luminaires and technical boxes.
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Ecosystem compatibility with the OSRAM/LEDVANCE family for linear modular solutions, backlighting and signage.
Use cases
- Linear lighting with LINEARlight and LINEARlight Flex modules (display cases, cornices, shelves).
- Signs and wayfinding with BACKlight chains.
- Decorative and accent lighting with compatible 10V COINlight modules.
- Modular projects with CONNECT accessories and angle control optics in LINEARlight systems.
Frequently Asked Questions
Does it work with standard 12V LED strips?
No. This model delivers 10.5V DC and is designed for 10V OSRAM modules (e.g., LINEARlight/LINEARlight Flex/Backlight). If your strip is 12V, you must use a specific 12V driver.
Can it be dimmed?
The OT 12/230-240/10 does not include regulation. For dimming 10 V systems, a compatible external control unit (e.g., OPTOTRONIC OT DIM 1–10 V) can be used within the topologies specified by OSRAM.
Can I leave the output unloaded?
Yes. The equipment is no-load proof (supports operation without a load).
Can it be used with DC backup power?
Yes, it supports operation at 176–264 V DC , suitable for emergency systems according to the technical data sheet.
Can I install it outdoors?
Its rating is IP20 . For outdoor use, it must be housed in a suitable watertight enclosure or a version with greater protection must be used.
Installation recommendations
- Respect the maximum cable length on the secondary side (4 m) and the indicated conductor cross-section (0.75–1.5 mm²).
- Verify that the total load of the LED modules is within the range of 0.4–12 W.
- Mount the equipment in a ventilated area and within the thermal range −20 °C to +50 °C .
- For projects with attenuation, incorporate compatible controllers/attenuators on the 10V side according to the manufacturer's schematics.
System standards and compatibility
It complies with the main regulations applicable to electronic equipment for LEDs (safety, performance and EMC), and integrates into OSRAM systems with CONNECT accessories for quick connection between modules, power supplies and connectors.
Project description
OSRAM OPTOTRONIC OT 12/230-240/10 constant voltage LED power supply: input 230–240 V~ 50/60 Hz; output 10.5 V DC ± 0.5 V; power 12 W; power factor 0.9; load range 0.4–12 W; short circuit, overload and over-temperature protection (resettable); no-load operation permitted; operation at 176–264 V DC; class II; IP20; primary-secondary isolation 3 kVrms; working temperature −20 to +50 °C; screw terminals; max. secondary wiring 4 m; dimensions 109 × 50 × 35 mm.
