1500W modular power supply series has lowest acoustic noise and full MoPP isolation

1500W modular power supply series has lowest acoustic noise and full MoPP isolation

New Products |
By Nick Flaherty

The QM series has both medical Means of Patient Protection (MOPP) and industrial safety certifications for a wide range of applications, including BF rated medical equipment, test and measurement, broadcast, communications and renewable energy applications. The operating efficiency is as high as 91%, reducing internal heat loss, allowing the use of low speed cooling fans.  This reduces audible noise to 44.3 dBA at room temperature and 45.3 dBA at 50°C, measured in accordance with BS EN ISO 3744:2010.  The lower speed fans mean less ingress of dirt and contaminants, enhancing the reliability.

The exact supply specificaiton is defined through an online configurator, giving an optimised module selection with a choice of signals, leakage current and standby voltages.  Once the desired output voltages and currents have been entered, the configurator will automatically produce a unique 8-digit code for easy order placement.

With a wide range 90-264Vac, 47-440Hz input the QM can deliver 1200W and 1500W with a 150-264Vac input.  Up to 16 outputs can be provided, with voltages ranging from 2.8V to 52.8V, with additional higher voltages later.  Module power ratings start with a low power 35W, with single or dual outputs, all the way to a powerful 1200W single output.  The units will operate in ambient temperatures of -20 to +70°C, derating output power and output current by 2.5% per °C above 50°C.  Overall case dimensions are a compact 176 x 63.3 x 270mm (W x H x D), and the weight is between 2.6 and 3.1kg, depending on the module configuration.  The QM is covered by an industry-leading seven-year warranty.

An optional standby/signal module is available with a choice of one or two standby voltages (5V and 12V at up to 2A).  It also contains unit inhibit or unit enable alongsidde an AC Good signal.  All the output modules are fitted with module good, module inhibit signals and remote sense as standard, except for the the dual output DH module.

The units are certified to IEC/EN/UL/CSA 60601-1, ANSI/AAMI ES 60601-1, IEC/EN/UL/CSA 60950-1 and designed to meet IEC/EN61010-1 with CE marking for the Low Voltage and RoHS2 Directives.  With an input to output isolation of 4,000Vac (2 x MoPPs), 1,500Vac input to ground (1 x MoPP) and 1,500Vac (1 x MoPP) output to ground, the series can be used in BF rated medical equipment.  The QM has a maximum earth leakage current of 300µA, while still complying with the EN61000-6-3:2007 and EN60601-1-2:2015 (curve B conducted and radiated) emission standards.  The units also meet the EN60601-1-2 and EN61000-6-2 immunity standards and are designed and manufactured under the control of ISO9001 and ISO13485 (including risk management).

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