Product Overview
Technical Summary
| Product | SIRIUS soft starter S0 32 A, 18.5 kW/500 V, 40 °C 400-600 V AC, 24 V AC/DC screw terminals |
|---|---|
| Rated operational current | 32 A at 40 °C; 29 A at 50 °C; 26 A at 60 °C |
| Motor capacity | 18.5 kW at 500 V, standard circuit, 40 °C |
| Operating voltage | 400 … 600 V, standard circuit, at 500 V |
| Control supply | 24 V AC/DC; 50 Hz and 60 Hz AC |
| Protection functions | Intrinsic device protection and motor overload protection |
| Mounting | Screw and snap-on mounting |
| Main connections | Screw-type terminals; 3 poles |
| Front protection | IP20 according to IEC 60529 |
| Operating temperature | -25 … +60 °C |
| Product lifecycle | Active Product |
Key Features
18.5 kW at 500 V in a standard circuit at 40 °C.
32 A at 40 °C, 29 A at 50 °C, and 26 A at 60 °C.
400 … 600 V at 500 V standard-circuit conditions, with -15 % relative negative tolerance and 10 % relative positive tolerance.
24 V AC/DC control supply with screw-type terminals; AC operation is rated at 50 Hz and 60 Hz.
Integrated bypass contact system, thyristors, intrinsic device protection, motor overload protection, external reset, and adjustable current limitation.
S0 device with screw and snap-on mounting, 45 mm width, 125 mm height, 155 mm depth, and screw-type terminals for main, auxiliary and control circuits.
Frequently Asked Questions
What exact line item is Siemens 3RW4027-1BB05?
It is a SIRIUS S0 soft starter with 32 A rated operational current, 18.5 kW at 500 V, 400 … 600 V AC operation, and 24 V AC/DC screw terminals.
What current ratings apply at different temperatures?
The rated operational current is 32 A at 40 °C, 29 A at 50 °C, and 26 A at 60 °C.
What control supply does the soft starter use?
The control supply is 24 V AC/DC. AC operation is rated at 50 Hz and 60 Hz, with screw-type terminals.
How is the device mounted and connected?
It uses screw and snap-on mounting. Main, auxiliary and control circuits use screw-type terminals.
What should be included with this item in a quotation request?
Specify the requested quantity, destination, schedule context, and any additional BOM line items together with the exact order number.
