Woodward highprotec MRI4, User Manual

Page: 631 / 727

Technical Data
Voltage Supply
Aux. Voltage:
24V - 270 V DC/48 - 230 V AC (-20/+10%)
≂
Buffer time in case of supply failure: >= 50 ms at minimal aux. voltage. The device will shut down if
the buffer time is expired
Note: communication could be interrupted
Max. permissible making current: 18 A peak value for

0.25 ms
12 A peak value for

1 ms
The voltage supply must be protected by a fuse of:
2,5 A time-lag miniature fuse 5x20 mm (approx. 1/5” x 0.8”) according to IEC 60127
3,5 A time-lag miniature fuse 6,3x32 mm (approx. 1/4” x 1 1/4”) according to UL 248-14
Power Consumption
Power supply range: Power consumption
in idle mode Max. power consumption
24-270 V DC: 7 W 10 W
48-230 V AC
(for frequencies of 50-60 Hz): 7 W / 13 VA 10 W / 17 VA
631 MRI4 DOK-HB-MRI4-2E