Totally Integrated Automation - Automation Technology - Siemens

© Siemens AG 2011
Power supplies
In SIMATIC design –
Power supplies for SIMATIC S7-200, S7-1200, S7-300, ET200pro
The optimum supply for SIMATIC S7 and more
• S7-200 design with 24 V/3.5 A.
The flat power supply is especially suitable
for applications with restricted headroom
and depth in the control cabinet.
• PM1207 power module: The compact
power supply with 24 V/2.5 A for the
SIMATIC S7-1200. The automatic range
switchover ensures problem-free
connection to 1-phase 120 V and 230 V
grids.
• S7-300 design: 24 V/2 A, 5 A and 10 A, PS307 compact system and
load power supplies. The automatic range switchover to 1-phase 120
and 230 V AC grids prevents operator errors. The delivery kit includes
the connecting comb to the CPU, an optional adapter allows mounting
on a DIN rail.
The 5 A power supply is also available as an outdoor version for temperatures
ranging from -25 °C to +70 °C and increased vibration and
shock loads.
• The SIMATIC ET200pro power supply unit
with degree of protection IP67 is used as
electronics/encoder supply and load voltage
supply of the I/O device. It has a signaling
contact for "24 V o.k." and "overtemperature"
and a second plug-in connector
for looping through of the input voltage.
DC-UPS and add-on modules –
For functional expansion of the SITOP power supplies
For uninterruptible power supplies, redundancy and selectivity in
the output circuit
• Protection against power failure:
– SITOP modular buffer module for
24 V buffering in the seconds range
– Maintenance-free DC UPS with longlasting
capacitors for 24 V buffering in
the minutes range
– DC UPS with battery modules for supplying
24 V in the hours range
• For maximum availability, the redundancy module decouples SITOP
power supplies of the same type
• The selectivity/diagnostics module offers selective protection of individual
24 V paths against overload and short-circuit. Downtimes can
be minimized thanks to rapid localization of errors.
Siemens TIA Product Guide 2011
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