Siemens SITOP BUF8600, Manual

Page: 17 / 252

Description, device design, dimension drawing
2.3 Description of the buffer modules
PSU8600power supply systems
Manual, 04.2016, A5E35883207-7-76
17
①
Connecting plug at the upper side of the device for the plug connection to the basic unit or
additional modules.
②
Socket at the upper side of the device for the plug connection to additional modules
③
"O.K." LED
④
DIN rail slider
⑤
Convection
⑥
Clearance above/below
When the buffer module with electrolytic capacitors is completely charged (LED "O.K." lights
green) power failures of 100 ms or 300 ms can be buffered with a load current of 40 A. The
buffer time is correspondingly increased for lower load currents.
Table 2- 3 BUF8600 buffer modules with double-layer capacitors
Designation Buffer time Charge time for a rated
input voltage of 400 V
Article number
4 s/40 A buffer module 4 s at 40 A typ. 5 min;
max. 8 min
(when completely dis-
charged)
6EP4293-8HB00-0XY0
10 s/40 A buffer module 10 s at 40 A typ. 10 min;
max. 18 min
(when completely dis-
charged)
6EP4295-8HB00-0XY0