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TEQ 300WIR Series from TracoNew TEQ 300WIR series of 300 watt high performance and ruggedized DC-DC converters with ultra-wide 4:1 input voltage ranges and EN 50155 approval for railway applications to our TRACO Power portfolio.

The shock and vibration resistant TEQ 300WIR series is available in single output voltages of 12, 24, 28 and 48VDC. The chassis mount product is designed for industrial applications where PCB mounting is not possible. A high efficiency of up to 92% and the overall heatsink construction allows an operating temperature from -40ºC up to +55°C with natural convection cooling without power derating and up to +80ºC with power derating. Standard features include output voltage trimming, 3000VDC I/O isolation, power sharing (up to 3 units in parallel), soft start, remote on/off and under voltage lockout. The ultra-wide input voltage range, constant current output characteristic and reverse input voltage protection make these converters an ideal solution for battery operated systems.

Pricing starts under $420.00 each in OEM quantities. Prototype quantities are available in 3–4 weeks. PSUI is an ISO 9001:2008 North American Authorized Distributor for TRACO Power. All TRACO Power products are backed by a 3 year warranty.

Download full specifications and procure parts online at For sales or applications inquiries, please contact Power Sources Unlimited, Inc. toll free at 800-966-PSUI(7784) (USA only) or 508-384-1419 or email