Power supplies ruggedised for railway shock

These products feature 12, 24, 48V outputs (-2% ~ +17% VADJ Range), high efficiency operation of 88 to 90%, 150% peak power for four seconds, and packaged in a ruggedised metal enclosure that is EN61373 qualified for railway shock and vibration.

Protection circuits include back power immunity, short-circuit / overload protection and a DC OK dry signal contact. DC-OK LED indicators on both the front and side panels with optional side panel mounting enable use in flat panels.

The product’s reduced heat dissipation enables a -40 to +60°C full load operating temperature range (up to +70°C operation with only 20% de-rating). Outputs are radio-interference-suppressed to impede radiation at long output lines. This filter reduces the common mode current to within limits of telecommunication ports.

The units operate with a high power factor of up to 99% with active power factor correction which also minimises input inrush current. All models are safety approved to meet UL/EN 60950-1, UL508 listed, EN 600079-0/-7/-15, ATEX II3G and UL HazLoc Class I, Division 2 with EN55032 Class B for both radiated and conducted emissions. High reliability of greater than one million hours per IEC 60079-0 is supported by TRACO POWER’s extended five year product warranty.

Products are in stock and available through distributors around the globe with manufacturing lead times of 12 to 14 weeks.