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Relec Electronics announces Bel Power’s new 300 Watt Euro-cassette AC DC Converter – LR Series

17 May 2018

Relec Electronics in association with leading global manufacturer of power conversion devices, Bel Power, announces the introduction of the new LR series 300 Watt AC DC power supplies.

The LR series follows on as an AC input version of the highly successful, ultra-wide input HR / HRP series of DC DC converters. Bel Power / Melcher have developed these converters and optimised them for use in transportation and other advanced electronic systems.

Rugged AC DC Power Converters

Relec Electronics announces Bel Power’s new 300 Watt Euro-cassette AC DC Converter – LR Series Relec Electronics in association with leading global manufacturer of power conversion devices, Bel Power, announces the introduction of the new LR series 300 Watt AC DC power supplies.

The LR series follows on as an AC input version of the highly successful, ultra-wide input HR / HRP series of DC DC converters. Bel Power / Melcher have developed these converters and optimised them for use in transportation and other advanced electronic systems.

As with all Melcher branded products, the LR comes in an extremely rugged euro-cassette format with a range of accessories for either rack or chassis mounting. The case design allows for operation at nominal loads up to 71°C with natural cooling. If forced cooling is provided, the ambient temperature may exceed 71 °C, but the case temperature must remain below 95 °C.

A temperature sensor generates an inhibit signal, which disables the outputs when the case temperature TC exceeds the limit. The outputs are automatically re-enabled when the temperature drops below the limit.

LED indicators display the status of the converter and allow for visual monitoring of the system at any time.

The converters can either be plugged into a 19 " rack system according to IEC 60297-3, or be chassis mounted. Two heat sinks of different size and cooling plates for chassis mounting (option B, B1) are available on request.

The LR series has been designed in accordance with the requirements and EN50155, EN50121-4 and is also available with a fully compliant sub-rack meeting the American Railway Engineering and Maintenance-of-Way Association (AREMA) standards.

The LR series has been designed in accordance with the requirements and EN50155, EN50121-4 and is also available with a fully compliant sub-rack meeting the American Railway Engineering and Maintenance-of-Way Association (AREMA) standards

Key features and benefits of the LR series include:

- Suitable for Class I equipment

- Universal AC input voltage range with PFC and DC input

- Inrush current limitation

- 2 fully isolated, adjustable outputs

- No load, overload, and short-circuit proof

- Rectangular current limiting characteristic with flexible load distribution

- Inhibit function

- Parallel operation with active current sharing

- Interruption time 20 ms

- Immunity according to EN 61000-4-2, -3, -4, -5, -6, -8

- RoHS-compliant

- Fire & smoke according to EN 45545.

- Full conformal coating of all PCBs

- Very high reliability

- Case compatible with HR / HRP series DC DC Converters

- AREMA compliant sub-racks available

More information can be found on the Relec website: https://www.relec.co.uk/power/lr-series/


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