Product information
Overview
Key Features
- Current and motor power: Rated operational current: 25 A at 40 °C; 23 A at 50 °C; 21 A at 60 °C. Motor power: 11 kW at 400 V and 5.5 kW at 230 V in the standard circuit at 40 °C rated value.
- Operating voltage and frequency: Operating voltage: 200 … 480 V in the standard circuit, with relative tolerances of -15 % and 10 %. Rated operating frequency: 50 … 60 Hz, with relative tolerances of -10 % and 10 %.
- Control supply: Control supply voltage type: AC/DC. Rated control supply: 24 V AC at 50 Hz or 60 Hz, and 24 V DC; the AC and DC supply voltage tolerances are -20 % and 20 %.
- Integrated functions: Has an integrated bypass contact system and thyristors, plus intrinsic device protection, motor overload protection, external reset and adjustable current limitation.
- Connections and contacts: Main, auxiliary and control circuits use screw-type terminals. Auxiliary contacts: 0 NC, 2 NO and 1 CO.
- Mounting and protection: S0 device with screw and snap-on mounting. Dimensions: 45 mm width, 125 mm height and 155 mm depth. Front protection class: IP20 according to IEC 60529.
Technical Summary
| Product | Siemens SIRIUS 3RW4026-1BB04 soft starter |
|---|---|
| Rated operational current | 25 A at 40 °C; 23 A at 50 °C; 21 A at 60 °C |
| Motor power | 11 kW at 400 V; 5.5 kW at 230 V, standard circuit at 40 °C rated value |
| Operating voltage | 200 … 480 V, standard circuit |
| Operating frequency | 50 … 60 Hz |
| Control supply | 24 V AC at 50 Hz or 60 Hz; 24 V DC |
| Main circuit connection | Screw-type terminals |
| Auxiliary and control connection | Screw-type terminals |
| Mounting | Screw and snap-on mounting |
| Front protection | IP20 according to IEC 60529 |
| Operating ambient temperature | -25 … +60 °C |
Frequently Asked Questions
What is the exact Siemens model and product type?
The exact model is Siemens SIRIUS 3RW4026-1BB04, a SIRIUS soft starter, size S0.
What motor power and operating voltage does the soft starter support?
Motor power is 11 kW at 400 V and 5.5 kW at 230 V in the standard circuit at 40 °C rated value. Operating voltage is 200 … 480 V in the standard circuit.
What control supply and terminals are provided?
The control supply is 24 V AC at 50 Hz or 60 Hz, or 24 V DC. Main, auxiliary and control circuits use screw-type terminals.
What mounting and protection details should be verified?
Mounting is by screw and snap-on mounting. The dimensions are 45 mm x 125 mm x 155 mm, and front protection is IP20 according to IEC 60529.
