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Siemens SIRIUS 3RW4445-6BC34

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3RW4445-6BC34

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Within the SIRIUS series, the Siemens 3RW4445-6BC34 is a soft starter, designed to effectively manage large motor applications. It features an integrated bridging contact system along with thyristors for smooth operation under varying loads.

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Technical specifications for 3RW4445-6BC34

ManufacturerSiemens
Product TypeSoft Starter
Product LineSIRIUS
Part Number3RW4445-6BC34
UPC754554923123
Weight25.00 lbs (11.34 kg)
FeaturesIntegrated bridging contact system and thyristors
Rated Operational Voltage200 to 460 VAC
Phases3-phase
Control Voltage115 VAC at 50/60 Hz
Max. Operation Current313A
Motor Rating Standard (HP)200 hp
Motor Rating Inside Delta (HP)400 hp
Inside-Delta Operation Current485A
Motor Overload ProtectionIntegrated
Bypass Contact SystemYes
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The Siemens 3RW4445-6BC34 is a soft starter that facilitates the control of extensive motor operations. Rated for three-phase systems, this unit accommodates operational voltages between 200 and 460 VAC. The soft starter can manage a peak operation current of up to 313A, making it suitable for significant load applications.

In terms of motor ratings, the soft starter is designed for a standard power of 200 hp and can handle up to 400 hp under inside delta scenarios. It also supports operating currents of 485A when functioning in inside-delta configurations. Notably, the 3RW4445-6BC34 incorporates an integrated motor overload protection system, which safeguards the motor during excess load conditions.

The device measures 348 mm in width, 434 mm in height, and 374 mm in depth, corresponding to dimensions of approximately 13.70 inches by 17.09 inches by 14.72 inches. Its weight is recorded at 11.17 kg (24.63 lbs.), ensuring robust construction while remaining manageable for installation. The soft starter operates with a control voltage requirement of 115 V AC, functioning properly at 50/60 Hz.