3RW3036-1BB14 SIEMENS, 3RW3036-1BB14 Datasheet - Page 42

• Manufacturer Part Number: 3RW3036-1BB14
• Description: SIRIUS SOFTSTARTER, S2, 45A, 22KW/400V
• Manufacturer: SIEMENS

Specifications of 3RW3036-1BB14

• Supply Voltage Range: 200Vac To 480Vac
• No. Of Phases: Three
• Power Rating: 22kW
• Current Rating: 45A
• Operating Temperature Range: -25°C To +60°C
• Approval Bodies: CE, IEC, UL, CSA
• Control Voltage: RoHS Compliant

3RW40
for standard applications
Configuration
The 3RW solid-state soft starters are designed for easy starting
conditions. In the event of deviating conditions or increased
switching frequency, it may be necessary to choose a larger
device. For accurate dimensioning, use the Win-Soft Starter
selection and simulation program.
Where long starting times are involved, the integrated solid-state
overload relay for heavy starting should not be disconnected.
PTC sensors are recommended. This also applies for the smooth
ramp-down because during the ramp-down time an additional
current loading applies in contrast to free ramp-down.
In the case of high switching frequencies in S4 mode, Siemens
recommends the use of PTC sensors. For corresponding device
versions with integrated thermistor motor protection or separate
thermistor evaluation devices see Catalog LV 1.
In the motor feeder between the SIRIUS 3RW soft starter and the
motor, no capacitive elements are permitted (e.g. no reactive-
power compensation equipment). In addition, neither static
systems for reactive-power compensation nor dynamic PFC
(Power Factor Correction) must be operated in parallel during
starting and ramp-down of the soft starter. This is important to
prevent faults arising on the compensation equipment and/or the
soft starter.
All elements of the main circuit (such as fuses and controls)
should be dimensioned for direct starting, following the local
short-circuit conditions. Fuses, controls and overload relays
must be ordered separately. Please observe the maximum
switching frequencies specified in the technical specifications.
Note:
When induction motors are switched on, voltage drops occur as a
rule on starters of all types (direct starters, wye-delta starters, soft
starters). The infeed transformer must always be dimensioned
such that the voltage dip when starting the motor remains within
the permissible tolerance. If the infeed transformer is dimensioned
with only a small margin, it is best for the control voltage to be
supplied from a separate circuit (independently of the main
voltage) in order to avoid the potential switching off of the soft
starter.
Power electronics schematic circuit diagram
A bypass contact system and solid-state overload relay are
already integrated in the 3RW40 soft starter and therefore do not
have to be ordered separately.
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3RW Soft Starters
Siemens LV 1 N SIRIUS Soft Starters · 01/2008
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© Siemens AG 2008
Status graphs
Win-Soft Starter selection and simulation program
With this software, you can simulate and select all Siemens soft
starters, taking into account various parameters such as mains
properties, motor and load data, and special application
requirements.
The software is a valuable tool, which makes complicated,
lengthy manual calculations for determining the required soft
starters superfluous.
You can order the CD-ROM under the following order number:
Order No. E20001-D1020-P302-V2-7400.
More information can be found on the Internet at
http://www.siemens.com/softstarter