134 A Rated Current
The 3RW4055-6BB44 is rated for an operational current of 134 A at an ambient temperature of 40 °C.
SIEMENS 3RW4055-6BB44 SIRIUS Soft Starter 134A 75kW 200-460VAC
Available in stock (400)
Regular price
$889.17
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Regular price
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Technical Specifications
| Brand | SIEMENS |
| Model Number | 3RW4055-6BB44 |
| Product Category | Soft Starter |
| Product Family | SIRIUS 3RW40 |
| Size | S6 |
| Rated Operational Current | 134 A at 40 °C |
| Motor Power at 400 V | 75 kW at 40 °C |
| Motor Power at 230 V | 37 kW at 40 °C |
| Operating Voltage | 200-460 VAC |
| Control Supply Voltage | 230 VAC |
| Operating Frequency | 50-60 Hz |
| Rated Insulation Voltage | 600 V |
| Connection Type | Screw Terminals |
Key Features
75 kW at 400 V
The soft starter is specified for three-phase motor applications up to 75 kW at 400 V under the documented 40 °C operating conditions.
200-460 VAC Operation
The SIRIUS 3RW40 power electronics are designed for a rated standard-circuit operating voltage range of 200 to 460 VAC.
Integrated Bypass
An integrated bypass contact system is provided as part of the soft starter design.
Motor Overload Protection
The 3RW4055-6BB44 includes motor overload protection together with intrinsic device protection for suitable motor starting applications.
Adjustable Current Limitation
Adjustable current limitation is supported for configuring the motor starting process according to the applicable system requirements.
Applications
- Three-phase motor starting systems
- Industrial pumps
- Industrial fans and ventilation equipment
- Conveyor systems
- Machine drive systems
- Industrial process equipment
- Motor control cabinets
- Factory automation systems
Purchase Information
We support online purchase of the SIEMENS 3RW4055-6BB44 Soft Starter. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.
Frequently Asked Questions
What is SIEMENS 3RW4055-6BB44?
It is a SIRIUS 3RW40 soft starter in size S6 for controlling the starting process of suitable three-phase motors.
What is the rated operational current of 3RW4055-6BB44?
The rated operational current is 134 A at 40 °C.
What motor power does it support at 400 V?
The documented motor power rating is 75 kW at 400 V and 40 °C in a standard circuit.
What motor power does it support at 230 V?
The documented motor power rating is 37 kW at 230 V and 40 °C in a standard circuit.
What is the operating voltage range?
The rated operating voltage range in a standard circuit is 200 to 460 VAC.
What control supply voltage does 3RW4055-6BB44 use?
The control supply voltage is 230 VAC.
Does 3RW4055-6BB44 have an integrated bypass?
Yes. An integrated bypass contact system is included.
Does the soft starter provide motor overload protection?
Yes. Motor overload protection and intrinsic device protection are documented functions of this model.
Does it support adjustable current limitation?
Yes. Adjustable current limitation is supported.
What type of terminals does 3RW4055-6BB44 use?
The documented configuration uses screw terminals.
Can 3RW4055-6BB44 be considered for an existing motor system?
It can be considered after the exact article number, motor voltage, rated current, motor power, starting requirements, control supply voltage and protection coordination have been checked.
What should be checked before ordering?
Check the complete 3RW4055-6BB44 article number together with the motor rating, 200-460 VAC operating voltage, 230 VAC control supply, 134 A current requirement, connection method and application configuration before ordering.
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