Schurter's new power entry module series, the DD21 and DD22, are designed for PCB mounting. The DD21 product is equipped with multiple functions including appliance connector, switching and fusing, while the DD22 series adds either a standard or medical filter.
Besides their high functionality, the manufacturer says that their compactness also makes them ideally suited for use in equipment with low headroom. Particularly in the IT and telecom infrastructures, where equipment is continually downsized, these unique products can help in solving space problems.
The 2-pole switch - dimensioned for inrush current peaks of 100 A capacitive for 3 ms - is available in either an illuminated or non-illuminated arrangement. The series can be equipped with 1- or 2-pole fuse holders for 5 x 20 fuse-links. The DD21 is rated currents at 8 and 10 A; the DD22 series for 1, 2, 4, 6, 8, 10 A.
The power entry modules fulfil IEC/EN 60950 requirements, and are ENEC and UL/CSA approved up to 10 A 250 V a.c. 50 Hz and 8 A 125/250 V a.c. 60 Hz respectively. Special configurations such as protection Class II arrangements or filters with special X1 capacitors for increased dielectric strength are possible. Mounting takes place using M3 or self-tapping screws onto a PCB or on the rear of the housing with M3 screws.
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