Please message me for out-of-stock units as these can often be obtained ex-factory within 5 working days at no additional cost! Note, any item with ONE(1) in stock comes ex-factory (please message me if you require more than one). The HA8572 DIN rail (175mm length) is only available with a UPS module purchase! For a video of the DUPS40 setup... click here. For a video of the DR-UPS40 installation... click here@

For a suitable 24V DIN rail power supply (480W or 960W) for use with this module see NDR range, XDR range and SDR/TDR/WDR ranges.

For the all-in-one 12V, 24V, 36V, 48V "all-in-one" UPS system (DRC and DRS series) - click here

Two new Meanwell 24V DC UPS or battery backup modules are available. The DUPS20 allows a maximum 20A output and the DUPS40 allows 40A output. The DUPS40 replaces the DR-UPS40 (also available BUT being "phased out") and the new modules operate using a MCU (Micro Control Unit) that provides important new features such as an Over Discharge Current limit that disconnects the battery when the maximum allowed current is exceed for more than 3 seconds. This also allows higher capacity batteries to be used (up to 135 Amp hour) for longer offline operation!

An external 24VDC power supply (the voltage is normally adjusted to 27.6VDC in order to fully charge the battery) must be provided. The choice of power supply enables greater flexibility in the system design with possible units of 120W* to 960W capable of being used. For the low cost DIN rail NDR range (75W to 480W) - click here. For other DIN rail options (including SDR 150% peak output range or operation from 415VAC single WDR or 3 phase TDR operation) - click here. Meanwell can also provide DIN rail DC to DC converters for 12V (adjustable 9V to 14V), 24V (adjustable 24V to 28V) and 48V (adjustable 48V to 56V) for a regulated output fully isolated from the battery system and constant current limited with 150% peak current - click here. *120W power supply is considered the minimum required as 2A is needed for battery charging!

All Meanwell products have a 2 to 7 year warranty. MEAN WELL Enterprises Co., is a Taiwan based company started in 1982 with strong ties worldwide (some well-known companies re-badge their products) and they provide excellent support and backup. Meanwell is a TQM (Total Quality Management) company and is ISO9001 certified. In 2017, the 2-year return rate was 1 in 6600. Meanwell power supplies are extremely reliable in our experience with only one unit DOA (Dead On Arrival) that was replaced and three returned during the warranty period in the 15+ years we have been selling... one power supply had been installed in a control box outdoors (for advertising) and had been attacked by a nest of ants! Meanwell now offers a range of fully sealed units (IP65 and IP67 rated)... please ask us for advice for outdoor and hazardous environments. For a company video - click here.

Some "on-the-web" comments... 1. "I have hundreds of 600 Watt 24V Meanwells running in the field and probably another 100+ 350Watt 5V running in the field and they are the most reliable piece of equipment compared to everything else. I've -never- replaced one in over 11 years, but I have replaced a lot of cruddy circuit boards designed or assembled by the less technically inclined (companies).", 2. "But in the end I've learnt a lesson here and that is spend the extra cash and buy some quality power supplies like the meanwell brand or else you could be in for a very frustrating time but I don't have the budget for that this year so I'll have to deal with what I have (sad face)", 3. Need a decent power supply... I can recommend mean well supplies. They are low end industrial supplies but are good quality, much better than no-name chinese supplies you can get from ebay etc.. I use mean well in lots of equipment and have had very few failures in thousands of hours of run time.

We also provide a download (or CDROM on request) with the documentation in PDF format and other information on Meanwell products.

All goods sold in Australia include GST, a tax invoice is provided.

EXPRESS DELIVERY INCLUDED.

Beware of purchasing this product from overseas as an Australian Warranty will not be provided. PLEASE download the PDF document "Buying electrical equipment online" from Energy Safe Victoria.

@ in the video (click here), they make an important point that an EARTH STRAP is needed to the metal case of the UPS module. In fact the UPS module is the only Meanwell metal case DIN rail unit that doesn't have a FG (Frame Ground) terminal hence the need for you to provide one! Other important points for you to note are the need to externally parallel ALL terminals from the power supply outputs before connecting it to the UPS module (DC terminals) and the load (multiple terminals on the power supply are NOT there for "convenience"). Also a 5mm space between DIN rail units should be provided for ventilation and 15mm when both units are heat generating devices. Finally note the fuses in the links between each set of two 12V SLA batteries to protect the batteries from short-circuit. This video provides a good example of how a UPS is used in a PoE (Power Over Ethernet) system for CCTV cameras. NOTE also when the voltage of a 24V DIN rail power supply is increased to 27.6V the maximum continuous current must be reduced by 12.5%, also remember 2A is used to charge the battery!