UL924BRUNV Industrial Controls

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The UL924BRUVN is a Class 1, Division 1 and 2 isolator and voltage reducer designed for even the harshest of lighting control applications. It is a low voltage device that reduces line-voltage (120-277V) down to a safe, 24V power supply for LED lighting. The UL924BRUVN is covered by UL 1449 and UL 924 for applications such as the following:

• Indoor Fixtures (Class 1 Division 2): UL924BRUNV is designed for use with Class 1 Div 2 Light Fixtures to reduce line voltage and provide a safe 24V power source for LED lighting. UL 924 certified isolators conform to NEC 501.15(B) and have a continuous operating temperature rating of 75°C.
• Tunnels (Class 1 Division 1): UL924BRUNV can be installed in tunnel applications to reduce line voltage and provide a safe 24V power source to LEDs. This reduces the need for additional wiring as LED lights no longer need to be run off the existing line voltage. UL 924 certified isolators conform to NEC 501.15(B) and have a continuous operating temperature rating of 75°C.
• Extreme Environments (Class 1 Division 1): UL924BRUNV is designed for use in hazardous area applications requiring reliable isolation in extreme environments. UL 924 certified isolators conform to NEC 501.15(B) and have a continuous operating temperature rating of 75°C.

The UL924BRUNV works by converting the high voltage of the line voltage into a safe, low voltage (24V) output. It utilizes an isolation transformer, which separates the AC output from the AC input by use of magnetic fields, thus preventing the transfer of current or voltage from flowing when there is a differential in potential between the two circuits. This ensures that a short circuit or overload on the output will not affect the line side of the isolation transformer.

The UL924BRUNV is designed to reduce the line voltage to a maximum of 24V DC. The device features a soft start that enables an adjustable level of current to be removed during startup, allowing the LED lights to be illuminated gently over time. This reduces potential power surges during startup due to the current draw of the LEDs, prolonging their lifespan.

In addition, the UL924BRUNV also features overload and short circuit protection. The device will automatically shut down if the line voltage is detected to be too high or exceeds the maximum allowable current draw of the LEDs. This prevents damage to the LEDs and potential fire risk.

In summary, the UL924BRUNV is a highly reliable device designed to reduce line voltage to a safe 24V DC and provide overload and short circuit protection for LED lighting applications. It is UL 1449 certified, UL 924 approved, and has a continuous operating temperature of 75°C, making it suitable for a wide variety of lighting control applications.

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