3RW4026 - Uncategorized SIRIUS - Free user manual and instructions
Find the device manual for free 3RW4026 SIRIUS in PDF.
Pick your language and provide your email: we'll send you a specifically translated version.
| Product Type | Soft Starter |
| Brand | Siemens SIRIUS |
| Model | 3RW4026 |
| Rated Operational Voltage | 400 V AC |
| Rated Operational Current | 25 A |
| Motor Power (at 400 V) | 5.5 kW |
| Control Supply Voltage | 24 V DC |
| Dimensions (W x H x D) | 45 x 150 x 135 mm |
| Weight | 0.3 kg |
| Degree of Protection | IP20 |
| Ambient Temperature Range | -25 to +60 °C |
| Main Functions | Soft start, soft stop, motor protection, phase failure detection, overload protection |
| Maintenance | Periodic inspection for dust and debris; clean with dry cloth; check wiring tightness |
| Safety Instructions | Install in suitable enclosure; disconnect power before maintenance; follow local electrical codes |
| Spare Parts and Repairability | Contact Siemens service for spare parts; device not field-repairable, replace unit if faulty |
| General Information | Compact design for motor control; integrated bypass; suitable for standard and high-performance applications |
Frequently Asked Questions - 3RW4026 SIRIUS
What is the Siemens SIRIUS 3RW4026?
The 3RW4026 is a soft starter from the Siemens SIRIUS series, used for smooth starting and stopping of three-phase induction motors.
What is the maximum motor power for the 3RW4026?
At 400 V AC, the 3RW4026 can handle motors up to 5.5 kW (7.5 hp).
How do I install the 3RW4026?
Mount the device on a DIN rail or panel. Connect the main supply to L1, L2, L3 and the motor to T1, T2, T3. Wire the control circuit (24 V DC) as per the wiring diagram in the manual.
What protection functions does it have?
The device provides overload protection, phase failure detection, and motor protection against overheating.
How do I set the starting parameters?
Use the integrated potentiometers or DIP switches (if available) to adjust start voltage and ramp time. Refer to the manual for precise settings.
What are the LED indicators on the front?
Typically there are LEDs for power on, fault, and motor running status.
Can the 3RW4026 be used for frequent starts?
It is designed for standard starting duty. For frequent starts, consider a higher-rated model or external cooling.
How do I troubleshoot if the motor does not start?
Check the control supply voltage, confirm that all three phases are present, and inspect the motor wiring. If the fault LED is on, consult the manual for error codes.
What is the recommended cleaning procedure?
Disconnect power and use a dry, lint-free cloth to remove dust. Do not use solvents or water.
Where can I find the detailed manual?
The manual is available for free download on notice-facile.com or the Siemens Industry Online Support portal.
User questions about 3RW4026 SIRIUS
0 question about this device. Answer the ones you know or ask your own.
Ask a new question about this device
No questions yet. Be the first to ask one.
Download the instructions for your Uncategorized in PDF format for free! Find your manual 3RW4026 - SIRIUS and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. 3RW4026 by SIRIUS.