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With this function the motor can be controlled in both directions of rotation with reduced torque and an adjustable, low speed. Available for 3RW40 2. Device versions up to a rating of 55 kW with V are available: This is made possible by the on-going dynamic harmonizing and balancing of current half-waves of different polarity during the motor ramp-up.

The type of coordination “2” refers only to soft starters in combination Siemens Industry, Inc. Screw connection Spring-loaded connection Standard see tabular overview on page 5ff.

3rwbb44 manual(PDF) –

Filter selection applies under standard conditions: In conjunction with templates it is even possible to selectively adapt the same parameters in any number of parameterizations.

They guarantee safe reliable shutdown when short circuits occur and protect loads and plants against overload.

How to realize fast, easy, flexible and space-saving control cabinet assembly? The bypass contacts already integrated in the soft starter bypass the thyristors after a motor ramp-up is detected. The 3RA11 direct starter Ready for immediate use: Only soft starting available for 3RW 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.


Please contact our partner Intertek directly for a re-calibration of your device: Rated current Ie corresponds to the rated motor current In, 3 cables to the motor Note: 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.

3RW4056-6BB44 – Soft Starter 90 kW @ 400 VAC – Siemens

At the same time this soft starter comes with additional integrated functions such as adjustable current limiting, motor overload and intrinsic device protection, and optional thermistor motor protection on some models. The bypass contacts of these soft starters are protected during operation by an integrated solid-state arc quenching system. These tables present sample set values and device 3rww4056-6bb44.

The control method used for these soft starters eliminates these direct current components during the ramp-up phase and prevents the braking torque which they can cause. Total Price CHF The outstanding ease of wiring ensures rapid mounting. Manuap enter your name and your e-mail address. Conductor cross-sections Auxiliary conductors 1 or 3rw405-66bb44 conductors can be connected: You need to register to use this feature. Starter Installation and Commissioning Instructions.

Contents Everything for the electrical cabinet: Only private customers can order as guest. Configuration, installation, wiring 3rw406-6bb44 maintenance can be realized easily and in minimum time. Reduced wiring in the main circuit thanks to the brilliantly simple infeed system, incl. These types of coordination are indicated in the Technical specifications by gray backgrounds. Support for improved efficiency! At the same time the acoustic quality kanual the starting operation comes close to the quality of a three-phase controlled soft starter.


This makes it easier to expand the system and saves considerable space in the electrical cabinet. S3 Covers for soft starters Terminal covers for box terminals Additional touch protection to be fitted at the box terminals 2 units required per device 3RW40 3.

Actual start times are load dependent. Inside-delta circuit Control circuit Possibility 4b: In conjunction with typicals it is even possible to selectively adapt the same parameters in any number of parameterizations.

Spring-loaded connection for mounting onto DIN rail: The measured values detected by 3rw4506-6bb44 calibration Calibration in a controlled environment measuring laboratory. Thanks to the integrated motor overload protection according to IEC there is no need of an additional overload relay on the new soft starters.

It’s a community-based project which helps to repair anything.

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