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Siemens SIRIUS 3RW4423-1BC34

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3RW4423-1BC34

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The Siemens 3RW4423-1BC34 is a soft starter designed for reliable control of electric motors. This unit efficiently manages the starting current, making it integral in protecting motors from excess strain during start-up.

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Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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Technical specifications for 3RW4423-1BC34

ManufacturerSiemens
Product TypeSoft Starter
Product LineSIRIUS
Part Number3RW4423-1BC34
UPC754554923055
Weight12.00 lbs (5.44 kg)
Operating Current36 Amperes at 40°C, 32 Amperes at 50°C, and 29 Amperes at 60°C
Number of Normally Open (NO) Contacts3 Normally Open (NO) contacts
Number of Change-Over (CO) Contacts1 Change-Over (CO) contact
Operating Current for 3-Phase Motor62 Amperes at 40°C, 55 Amperes at 50°C, and 50 Amperes at 60°C
Rated Frequency50 to 60 Hertz
Operating Voltage200 to 460 Volts AC
Mounting MethodScrew fixing
Number of Poles for the Main Current Circuit3 poles
Electrical ConnectionScrew-type terminals and box terminals
Ambient Operating Temperature0 to 60°C (in a non-condensing environment)
Protection RatingIP20
Rated Insulation Voltage690 Volts DC
Storage Temperature-25 to 80°C (in a non-condensing environment)
Power Loss40 Watts (typical)
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This soft starter from Siemens, model 3RW4423-1BC34, is engineered for effective control of AC electric motors. It delivers operating currents of 36 Amperes at 40°C, decreasing to 32 Amperes at 50°C and 29 Amperes at 60°C for ambient temperature conditions. When utilized with 3-phase motors, the current ratings are 62 Amperes at 40°C, 55 Amperes at 50°C, and 50 Amperes at a maximum of 60°C, ensuring suitable performance under a range of thermal conditions.

The device operates within a voltage range of 200 to 460 Volts AC and is compatible with frequencies between 50 to 60 Hertz. Featuring three poles in the main current circuit, this soft starter is designed for screw-type terminal electrical connections, ensuring reliability and ease of installation.

In terms of environmental specifications, the soft starter functions effectively from 0 to 60°C in non-condensing conditions and has an IP20 rating for protection against solid objects. Its rated insulation voltage is 690 Volts DC. Furthermore, it can withstand storage temperatures from -25°C to 80°C, again in non-condensing environments. Typical power loss during operation is recorded at about 40 Watts, which should be taken into account during setup.