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Siemens SIRIUS 3RW4446-6BC44

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3RW4446-6BC44

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The Siemens 3RW4446-6BC44 soft starter module is engineered for high operational currents with varying temperature ratings. Supporting both standard circuits and inside-delta circuits, it provides substantial mechanical performance for three-phase motors across multiple voltage levels.

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Technical specifications for 3RW4446-6BC44

ManufacturerSiemens
Product LineSIRIUS
Part Number3RW4446-6BC44
UPC754554924021
Weight11.56 lbs (5.24 kg)
Module TypeSoft starter
Operational Current356A (40°C), 315A (50°C), 280A (60°C)
Operational Current for 3-Phase Motors at Inside-Delta Circuit617A (40°C), 546A (50°C), 485A (60°C)
Yielded Mechanical Performance for 3-Phase Motor (230V)110000W (standard circuit), 200000W (inside-delta circuit)
Yielded Mechanical Performance for 3-Phase Motor (400V)200000W (standard circuit), 355000W (inside-delta circuit)
Operational Frequency50 to 60 Hz
Operating Voltage at Standard Circuit200 to 460V
Operating Voltage at Inside-Delta Circuit200 to 460V
Minimum Load8%
Overload Protection Rated Current71A
Power Loss at 40°C174W
Control Supply Voltage230V at 50Hz and 60Hz
Control Supply Voltage TypeAC
Insulation Voltage690V
Operational Temperature60°C
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Designed for reliable control, the Siemens 3RW4446-6BC44 is a soft starter that enables smooth operation of three-phase motors. This unit provides various operational currents, rated at up to 356A at 40°C, reducing to 280A at higher temperatures (60°C). For an inside-delta circuit, it manages robust currents of 617A (at 40°C) and 485A (at 60°C).

The soft starter can deliver impressive mechanical performance levels, providing functionalities of up to 110,000W for a standard circuit at 230V. For inside-delta applications, this performance reaches 200,000W. At 400V, the soft starter delivers mechanical power outputs of 200,000W in standard configurations and 355,000W in inside-delta configurations.

This device operates within an input frequency range of 50 to 60 Hz and can accommodate operating voltages between 200 and 460 Volts. It features a minimum load requirement of 8%, ensuring suitable operation characteristics.

Safety mechanisms are in place, including overload protection rated at 71A. The soft starter experiences a power loss of 174W when in a thermal state of 40°C. Furthermore, the control supply voltage is set at 230V and functions reliably under both AC and standard operational conditions.

With an insulation voltage capacity of 690V, the soft starter can safely operate up to a temperature of 60°C, making it a robust choice for various industrial applications.