3RW3027-1BB14 SIEMENS, 3RW3027-1BB14 Datasheet - Page 28

• Manufacturer Part Number: 3RW3027-1BB14
• Description: SIRIUS SOFTSTARTER, S0, 32A, 15KW/400V
• Manufacturer: SIEMENS

Specifications of 3RW3027-1BB14

• Supply Voltage Range: 200Vac To 480Vac
• No. Of Phases: Three
• Power Rating: 15kW
• Current Rating: 32A
• Operating Temperature Range: -25°C To +60°C
• Approval Bodies: CE, IEC, UL, CSA
• Control Voltage: RoHS Compliant

3RW30
for standard applications
Configuration
The 3RW solid-state motor controllers 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.
If necessary, an overload relay for heavy starting must be
selected where long starting times are involved. PTC sensors are
recommended.
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, controls and
overload relays) 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 is already integrated in the 3RW30 soft
starter and therefore does 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.
You can find more information on the Internet at:
http://www.siemens.com/softstarter
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