XT40.721, XT40.722

– X-Series

Jan. 2007 / Rev. 1.0 DS-XT40.72x-EN All parameters are specified at 72V 13.3A, 3x400Vac (XT40.721) or 3x480Vac (XT40.722),

25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0

Germany

18/19

The unit is designed to supply any kind of loads, including inductive loads or capacitive loads with a capacity of up to

50mF.

The unit protects itself against a loss of one input phase and does not require an external protection device.

A phase-loss operation is possible for output currents below 2.7A. Above this level, the yellow LED indicates an

impending shut-down. If the missing phase does not recover, the unit switches off after 3.5s. Pressing the reset

button or cycling the input power (10s required) initiates a restart.

Please note that the input current and the output ripple are higher during the time when one phase is missing.

When the power supply is installed in a tightly sealed enclosure, the temperature inside the enclosure will be higher

than outside. The inside temperature defines the ambient temperature for the power supply.

Results from such an installation:

Power supply is placed in the middle of the box, no other heat producing equipment inside the box

Enclosure:

Rittal Typ IP66 Box PK 9519 100, plastic, 180x180x165mm

Load:

72V, 10.6A (=80% of the rated current); load is placed outside the box

Input:

3x400Vac

Temperature inside the box:

54.9°C (in the middle of the right side of the power supply with a distance of 2cm)

Temperature outside the box:

25.7°C

Temperature rise:

29.7K