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3-phase power supply

21 April 2015

Important components in quality power management systems, Murrelektronik’s newly developed Emparro 3-phase power supplies for 24V applications are not only reliable but also efficient as a result of their integrated reserved power. They also do not require much space in the cabinet.

Highly reliable, they boast a MTBF value of about 1,000,000 hours, achieved with high-quality components, modern and slim circuit board design and processor-controlled electronics. An integrated gas discharge valve protects the power supply from interfering pulses up to 6kV.

The up to 95% efficiency rating means power loss is very low, which exposes the components to less thermal stress. The Emparro 3-phase efficiency rating is the same whether it is operating at full power or at any point along the load range including when it is operating at low capacity.

A particular feature of the Emparro 3-phase power supply units is integrated reserved power. They are designed in such a way that they can be operated with up to 20% overload in ambient temperatures of up to 45°C. The 5A models continuously supply 6A, 10A models 12A and 20A units 24A.

This brings two essential benefits: Firstly, if additional loads have to be connected to a machine or a system, Emparro 3-phase offers the necessary reserve; Secondly, if the demand is close to the maximum of a power supply a larger power supply does not have to be used. Instead, the reserve can be used to meet the demand thus saving cabinet space and money that would have been spent on a larger power supply.

Emparro 3-phase also features two different boost functions: power boost and hyper boost. The Power Boost supplies 50% more power for up to 5 seconds while the Hyper Boost provides up to 400% more power for up to 20ms.