Puls launches compact three-phase power supply

The compact QT 40 measures 110 x 124 x 127mm and weighs 1.5kg.

The first shipments are expected early in 2010.

Two versions of the new QT 40 are available - 24V 40A and 48V 20A.

Both deliver 960W with an efficiency of 95.3 per cent.

The QT 40's high performance has been achieved by the use of three microcontrollers to maintain efficiency at all levels of load.

This efficiency also facilitates power sharing by allowing multiple units to be mounted side by side on the DIN rail without the need for fan cooling.

Other features include near-zero inrush at switch-on, shut-down input with high meantime-between-failure values and, despite its diminutive size, built-in mains fuses.

Puls UK's Bonus Power overload design provides 150 per cent current reserves for up to four seconds to help start demanding loads.

The QT 40 is suitable for industrial bulk power applications such as control systems for large electric motors powering production equipment, conveyors and machine tools.

It is also suitable for outdoor applications where the ability to operate at low temperatures is important.

Ambient temperatures as low as -25C can be tolerated.