Rugged, low-profile DC-AC sine wave inverters are suitable for railway and industrial applications
The RSI 1K-F31 series of railway DC-AC inverters use field-proven microprocessor controlled high frequency PWM technology to deliver up to 1000VA pure sine wave output voltage. High frequency conversion enables high efficiency, compact construction and low weight.
The inverters accept supply voltages of 24Vdc (17-34V range), 36Vdc (25–51V range), 48Vdc (33-67V range), 72Vdc (50-101V range), 96Vdc (67-135V range), 110Vdc (77-154V range) or custom. The series provides a single sine wave output of 115Vac continuous at 60Hz or 400Hz, or 230Vac continuous at 50Hz, or custom output values. Efficiency at full load is typically 80%, depending on input voltage. An optional output-fail alarm (Form C) and remote shutdown or enable are available.
The DC-AC inverters meet the requirements of EN50155 for electronic equipment used on railway rolling stock and are suitable for a broad range of on-board and trackside railway applications. They are equipped with heavy filtering on the input and output and comply with EN50121-3-2. The units meet EN61000-4-2, EN61000-4-3, EN61000-4-4, and EN61000-4-6. They also meet the requirements of C22.2 No. 107.1-01, UL 458 and EN/UL60950-1 and equivalent industrial safety standards. Other protection includes 1500Vdc input-output isolation, overload protection, thermal protection and current limiting.
Cooling by baseplate to a cold plate surface and by natural convection ensures continuous operation over a -25°C to +55°C operating range for full specification. Wider temperature ranges are available on request. All heat generating components are installed on aluminium heatsink blocks which are thermally connected to the base plate. This also ensures exceptional mechanical ruggedness. Conformal coating provides protection against humidity and airborne contaminants.
A version of this design with fully encapsulated internal modules, the RSI 1KP-F31, is available for applications that require immunity to extreme levels of shock and vibration as well as to humidity, moisture, dust, salt, oil, insects and other contaminants. The internal modules are potted with a thermally conductive MIL-grade silicon rubber compound Full encapsulation with thermally UL94V-0 flammability rating and meets environmental criteria as requested in MIL-810 C, D.
A heavy-duty industrial grade version of this design, the CSI 1K-F31 series, is available for operation in industrial automation, mining, military, marine, telecom, utility and other extreme environments.
ABSOPULSE Electronics is an original equipment manufacturer (OEM) specializing in the design and manufacture an extensive range of custom and standard industrial and railway quality power conversion solutions. We offer one of the broadest selections of sine-wave inverters available on the market today. All of our designs are built in-house.
For further information including pricing, please contact us.
Key Specifications for Railway version
- 1000VA, DC-AC sine wave inverter;
- Output: 115Vac continuous at 60Hz or 400Hz, or 230Vac continuous at 50Hz;
- Input: 24Vdc, 36Vdc, 48Vdc, 72Vdc, 96Vdc, 110Vdc or custom, with wide EN50155 input ranges;
- EMI: EN55022 Class A with margins;
- Cooling: by baseplate to a cold plate surface and by natural convection;
- Operating temperature range:-25°C to +50°C for full spec.;
- Full electronic protection;
- Typical efficiency at full load: min. 80%;
- Heavy ruggedizing;
- Internal boards conformal coated;
- Full encapsulation of internal modules as option;
- Dimensions of F31 chassis: 483 x 68 x 356 mm (19″ x 2.7″ x 14″) W x H x L.
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