Converters and battery chargers designed for extreme conditions
A series of 850W DC/DC and AC/DC converter modules and battery chargers has been designed by Schaefer. The C/B3500 series utilises industrial grade components, and the compact and robust 6U design provides a highly efficient, space-saving solution for the most extreme environments including a variety of on-board (74VDC-110 or 24VDC) and wayside installations (115VAC-12 or 24VDC).
Other industrial applications include military, transportation, alternative energy and process control systems.
The highly efficient C3500 converters are available in seven standard DC input voltage ranges from 18-640VDC. AC input options are single-phase 115 or 230VAC (with or without PFC) or three-phase inputs of 3x200, 3x400 and 3x480VAC. Single outputs are available in twelve standard ranges encompassing 5-400VDC. All outputs are adjustable and fully regulated to 0.2% or better (load) and 0.1% (line).
The C3500 has comprehensive protection circuitry and efficiencies are up to 92%. Safety and construction standards meet both EN 60950-1 and EN 50178. EMI according to EN 61000-6-4, Class A (optional Class B upon request).
Featuring natural convection cooling and a standard operating temperature range of -20 to +75°C (derate 2.5%/°C from +55°C), with an option for -40 to +75°C. DC/DC and AC/DC models have remote sense capability. Options include increased mechanical strength, tropical protection, extended operating temperature, input diode, input MOV (600+VDC), active current sharing interrupt.
Mechanical and electrical modifications to standard modules are available upon request. In addition, Schaefer can design and manufacture fully custom solutions.
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