MEAN WELL — DRS-240_480 DIN Rail

The DRS-240 and DRS-480 series power supplies from MEAN WELL, which accept a universal input of 90 V to 305 V ac, support a global market for safety-critical control applications. Form C relay contacts are used to meet the requirements of the UL2524, EN54-4, and GB17945 signal and alarm design standards.

Offering a complete solution in a single package, the DRS-240/480 devices integrate an ac-dc power supply with an output from 12 V to 48 V dc, a battery charging circuit with 2- and 3-stage charging curve options in the 20% to 100% portion of the charging cycle, dc uninterruptible power supply functionality, and MODBus and CAN communications with optional CANBus support.

To ensure the highest reliability in the application, the DRS-240/480 power supplies feature an automatic priority function which enables them to supply the load in the event of abnormal power grid behavior. In this case, the system charges the battery using the excess energy coming into the system. The DRS-240/480 series works with a wide range of lead-acid and lithium batteries.

The MEAN WELL DRS-240 and DRS-480 DIN rail power supplies offer a complete set of protection functions: