Technical data
Constant current or constant voltage	CV
Volt	24 Volt
Protection class	IP67
Ampere (CC)	1,60 A
Size	208*43*26 mm
Operation temperature	-30 to +55 °C
Watt	40 W
Dimmable

The Osram LED power supply OT 40/220-240/24 DIM P 20X1 is a universally applicable, dimmable power supply for LED applications with constant voltage output (CV). It delivers a stable output voltage of 24 volts with a power rating of 40 watts and is designed for use in outdoor environments and demanding conditions. The device is equipped with a protection class IP67, meaning it is dust-tight and temporarily waterproof, even when submerged under 1 meter of water for up to 30 minutes. This property makes it particularly suitable for outdoor use, in damp rooms, or in industrial facilities where high environmental requirements exist.

Applications
This power supply is designed for operating LED lighting systems, especially for applications requiring dimmable light control. It is suitable for outdoor luminaires, pathway and corridor lighting, garden and landscape lighting, as well as industrial or commercial lighting systems that require constant voltage and high operational reliability. The operating temperature range of -30 °C to +55 °C allows use in climatically diverse regions, even under extreme temperatures.

Functions and Features in Detail
The device features a dimmable input with 0-10V signal, enabling precise brightness control of connected LED modules. The output voltage is 24 volts ±0.5 volts, ensuring high voltage stability. The maximum output current is 1.60 amperes, corresponding to a power of 40 watts. The galvanic isolation between primary and secondary side is 3 kV, providing high electrical safety. The surge voltage withstand between line and neutral conductor is 4 kV, increasing reliability during voltage spikes. The maximum operating temperature of the device is 55 °C, with an ambient temperature range down to -30 °C. The enclosure surface temperature (Tc) must not exceed 90 °C.

Technology Explained Simply
The power supply operates as a constant voltage (CV) unit, meaning it delivers a constant output voltage of 24 volts regardless of load. This is particularly important for LED modules, which require stable voltage to produce even and flicker-free light. Dimmability via 0-10V enables analog control of brightness, where 0 V represents off and 10 V represents full brightness. The protection class IP67 ensures the device remains undamaged even with direct contact with water and dust, making it especially suitable for outdoor use. Galvanic isolation protects the user from electrical hazards by electrically separating the primary (mains voltage) and secondary (24V) sides.

Compatibility and Accessories
The power supply can be combined with various accessories that ensure safe and waterproof cable connections. These include, for example, waterproof cable connectors with IP68 protection class, such as the Outdoor cable connector IP68 1:1 with 3-way terminal, or waterproof connector boxes with multiple connection options. Also, solder-shrink connector sets that are waterproof IP67 can be used to ensure a durable and secure connection. For connection to the mains, a 230V safety plug CEE7 (plug) -> Open End cable with wire end ferrules is available. Additionally, inrush current limiters such as the EBN-OS /230 can be used to reduce inrush current and extend the lifespan of LED modules.

Mounting and Installation
Mounting of the power supply is typically done at a fixed, dry, and well-ventilated location that meets the operating temperature requirements. Installation of electrical components and systems must generally only be carried out by qualified professionals to ensure safety and functionality. The device has dimensions of 208 mm (length) × 43 mm (width) × 26 mm (height), making it compact enough to fit in many installation scenarios. Wiring is done via the designated terminal clamps, and the use of waterproof connector solutions is recommended, especially for outdoor applications.

Operational Advantages
The power supply offers high operational safety due to galvanic isolation and high surge voltage withstand. The dimmable function enables flexible light control that can be adapted to specific requirements. The protection class IP67 ensures long service life even in harsh environments. The compact design and high power density of 40 watts in only 208 mm length make it an efficient solution for LED lighting systems. The operating temperature range of -30 °C to +55 °C extends the application range to different climatic zones.