+44 203 286 8189 steve.jones@westside-int.com
New Rosahl power supplies

New Rosahl power supplies

Rosahl power supplies


A new range of low-cost open board type (un-enclosed) switching power supplies (PSUs) for use with Rosahl membranes is available from Westside International. The BW Series PSUs suitable for use with ionic membrane dehumidifiers, and a wide range of other commercial and industrial application requiring wide input voltage range of 85 to 264 V AC and a single channel 3.3 V DC output. Four models are available with ratings 2A (10 W); 3A (15 W), 5A (30 W) and 10 (50W)

Rosahl power supplies


General Specifications

– Rosahl open board type power supply: CE; UL; RoHS compliant as follows:

– Conduction noise: EN55022 Class B; FCC Part15-B Class B, VCCI Class B,

– Safety standards: EN60950-1 certificate; UL60950-1, CSA60950-1,

– CE marking (low voltage directive)

– RoHS directive compliant

Rosahl power supplies are suitable for mounting in five or six orientations, and all models are RoHS compliant and are marked for compliance with the relevant European and US requirements, including CE and UL.

Offered with an open board construction, the PSUs use standard input and output connectors from the widely available VH Series manufactured by Company JST. Optional BW cable harnesses kits provide both input and output cables and these are supplied with 400mm tails cables. Model BW1 is suitable for membranes up to size 5: BW2 is suitable for membrane sizes 7 and 10.


Rosahl power supply specifications


  Dimensions Output (DC) Model Optional cable
Terminals by JST
50W x 105L x 21H x 73g 3.3V 2A (10W) BWS3.3SX-U1A Cable-BW1 Input: VHR-5N
Output: XHP-4
50W x 125L x 22H x 95g 3.3V 3A (15W) BWM3.3SX-U1A Cable-BW1 Input: VHR-5N
Output: XHP-4
56W x 133L x 26H x 135g 3.3V 6A (30W) BWT3,3SX-U1A Cable-BW2 Input: VHR-5N
Output: VHR-4N
M-10J1R 56W x 195L x 31.6H x 210g 3.3V 10A (50W) BWT3.3SX-U1A Cable-BW2 Input: VHR-5N
Output: VHR-4N
Advantages of Rosahl dehumidifiers