Low power AC/DCs in cabinet and DIN rail applications are often fitted by non-specialists, so need to be designed for worst case supply rails and be uncritical in their orientation and requirements for airflow. The new cost-effective RAC20NE-K/277/EPID products from RECOM are ideal in these respects with a wide 85-305VAC input range rated Class II and OVC III to 3000m. Their compact 26.4mm width occupies little space on a DIN-Rail or back-plate and a full 20W output power can be delivered without airflow to +55°C (85°C with derating). Optionally, the parts may be chassis mounted in any orientation using the fixing holes provided. IP40 ingress protection is included, and input and output connections are via convenient tool-free push-in terminals.
The encapsulated RAC20NE-K/277/EPID range is available with fully regulated DC outputs of 5, 12, 24, or 36VDC or 24VDC with active current limitation. Efficiency is very high, up to typically 88% contributing to cool-running and high MTBF at over 1M hours. The parts comply with safety standards for reinforced isolation, ‘Class B’ EMC levels with a floating or grounded output and meet Eco-design no-load and standby loss requirements. Short circuit, over-current, over-voltage and over-temperature protection are provided.
The size of the RAC20NE-K/277/EPID is just 83.0 (H) x 26.4 (W) x 29.5mm (D) and parts are supplied with a clip for tool-less ‘snap-on’ fitting to a fixed DIN-Rail.
