Technical Summary
| Product designation | Soft starter |
|---|---|
| Product brand name | SIRIUS |
| Size of engine control device | S2 |
| Rated operational current at 40 °C | 72 A |
| Power at 500 V | 45 kW |
| Operating voltage at standard circuit | 400 … 600 V |
| Control supply voltage | 24 V |
| Type of voltage of the control supply voltage | AC/DC |
| Control supply voltage frequency | 50 Hz / 60 Hz |
| Main current circuit connection | screw-type terminals |
| Auxiliary and control circuit connection | screw-type terminals |
| Fastening method | screw and snap-on mounting |
| Protection class IP on the front according to IEC 60529 | IP20 |
Applications
Soft starting with adjustable current limitation.
Motor overload protection with intrinsic device protection and external reset.
Key Features
Soft starter with product designation Soft starter and product brand name SIRIUS.
Rated value at 40 °C is 72 A.
At 500 V, the standard circuit rated value at 40 °C is 45 kW.
Type of voltage of the control supply voltage is AC/DC, with control supply voltage 1 at AC rated value 24 V and at DC rated value 24 V.
Screw terminals are used for the main current circuit and screw-type terminals are used for the auxiliary and control circuit.
Product lifecycle: Active Product.
Frequently Asked Questions
What is the exact Siemens order number and product type?
The order number is 3RW4038-1BB05, and the product type is a SIRIUS soft starter S2.
What are the key electrical ratings for 3RW4038-1BB05?
It has a rated operational current of 72 A at 40 °C and a power rating of 45 kW at 500 V.
What control supply does 3RW4038-1BB05 use?
The control supply is 24 V AC/DC.
What connection type does the soft starter use?
It uses screw terminals for the main current circuit and screw-type terminals for the auxiliary and control circuit.
