Key Features
- Soft starter designation: Soft starter in the SIRIUS range, product designation: Soft starter.
- Electrical ratings: 25 A at 40 °C and 15 kW at 500 V.
- Control and connection: 24 V AC/DC control supply with screw-type terminals for the main current circuit and auxiliary and control circuit.
- Built-in protection and control functions: Integrated bypass contact system, thyristors, intrinsic device protection, motor overload protection, external reset, and adjustable current limitation.
- Mechanical format: Size of engine control device: S0; width 45 mm, height 125 mm, depth 155 mm.
- Environmental data: IP20 front protection, ambient temperature during operation -25 … +60 °C, and installation altitude up to 5 000 m.
Technical Summary
| Product designation | Soft starter |
|---|---|
| Product brand name | SIRIUS |
| Size of engine control device | S0 |
| Operational current at 40 °C rated value | 25 A |
| At 500 V – at standard circuit at 40 °C rated value | 15 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 |
| Type of electrical connection for main current circuit | screw-type terminals |
| Protection class IP on the front according to IEC 60529 | IP20 |
Applications
- Motor soft starting with current limitation: Soft starting and adjustable current limitation for a motor.
Frequently Asked Questions
What is the exact Siemens model and product type of 3RW4026-1BB05?
3RW4026-1BB05 is a Siemens SIRIUS soft starter.
What are the main electrical ratings of Siemens 3RW4026-1BB05?
It is rated at 25 A at 40 °C and 15 kW at 500 V.
What control supply does Siemens 3RW4026-1BB05 use?
The control supply is 24 V AC/DC.
What connection type does Siemens 3RW4026-1BB05 use?
It uses screw-type terminals for the main current circuit and screw-type terminals for the auxiliary and control circuit.
