Key Features
- SIRIUS soft starter S0: Soft starter with product designation Soft starter and SIRIUS brand name.
- Integrated bypass contact system: Includes an integrated bypass contact system and thyristors.
- Motor protection functions: Intrinsic device protection, motor overload protection, external reset, and adjustable current limitation.
- Electrical rating: 32 A rated current, 18.5 kW/500 V at 40 °C, and operating voltage 400 … 600 V AC.
- Control supply and terminals: 24 V AC/DC control supply with screw terminals for main current circuit and auxiliary and control circuit.
- Mechanical data: Size S0, width 45 mm, height 125 mm, depth 155 mm, and fastening method screw and snap-on mounting.
Applications
- Motor starting and soft starting: Soft starting for a motor using adjustable current limitation.
- Motor overload protection: Protection task for a motor with motor overload protection and intrinsic device protection.
Technical Summary
| Product designation | Soft starter |
|---|---|
| Product brand name | SIRIUS |
| Size | S0 |
| Operational current at 40 °C rated value | 32 A |
| Power at 500 V at standard circuit at 40 °C rated value | 18.5 kW |
| Operating voltage at standard circuit rated value | 400 … 600 V |
| Type of voltage of the control supply voltage | AC/DC |
| Control supply voltage 1 at AC at 50 Hz rated value | 24 V |
| Control supply voltage 1 at DC rated value | 24 V |
| Fastening method | screw and snap-on mounting |
Frequently Asked Questions
What is Siemens 3RW4027-1BB05?
It is a SIRIUS soft starter S0.
What are the main electrical ratings of 3RW4027-1BB05?
It is rated 32 A and 18.5 kW/500 V at 40 °C, with an operating voltage of 400 … 600 V AC.
What control supply does 3RW4027-1BB05 use?
The control supply voltage is 24 V AC/DC.
Which connection type is used on 3RW4027-1BB05?
It uses screw terminals for the main current circuit and for the auxiliary and control circuit.
What mounting and size details are available for 3RW4027-1BB05?
The unit has screw and snap-on mounting, a size of S0, and dimensions of 45 mm x 125 mm x 155 mm.
