Motor Starter SIRIUS 3RM1 at the Hanover fair 2013
Getting started in the smallest of spaces is really easy with the SIRIUS 3RM1 motor starter. The following film shows how much space can be saved compared with conventional relay-contactor assemblies. It also shows the additional benefits offered by the new motor starters.
Does every millimeter count in your control cabinet? The solution: Motor switching and protection in a width of only 22.5 mm. Depending on its assembly, the motor feeder thus requires up to 75% less space in the control cabinet, making it even more efficient. This facilitates space savings compared to conventionally wired motor feeders. Furthermore, this eases the development of compact and modern systems and machines. SIRIUS 3RM1 motor starters are available as direct-on-line and reversing starters. They are suitable for the switching of small motors up to 3 kW
If you want fail-safe compact motor starters, they are now available. The SIRIUS 3RM1 Failsafe motor starters have certification in accordance with SIL3/ Pl 3 Cat. 4.
Getting started in minimum space is really easy with the SIRIUS 3RM1 Motor Starter. This animation shows you just how much space can be saved in comparison to conventional relay/contactor assemblies.
Numerous innovations ease the new SIRIUS 3RM1 motor starters' handling. The resulting time savings enable you to focus on your core business.
Mounting is ever so easy: All functions are combined in one motor starter, doing away with the need for various devices such as contactors and overload relays. This results in reduced storage and commissioning costs. Furthermore, the motor starters feature the durable and energy-saving hybrid switching technology.
All motor starters are certified in accordance with IEC, CCC and UL. They are thus suitable for the international market as no country-specific versions are required. This minimizes ordering and storage costs and additionally eases the import and export business. To the top of the page
A special infeed system is available for SIRIUS 3RM1 motor starters. This ensures significantly eased main circuit wiring thanks to minimized wiring expenditures and time. Also maintenance works are considerably eased.
The motor starters are available with screw-type, spring-loaded and mixed connections. With mixed connections, you profit from the benefits of the screw-type and spring-loaded connections which simplify wiring in the main circuit as well as in the control circuit. To the top of the page
SIRIUS 3RM1 motor starters win iF product design award. An international panel of 49 judges was impressed by the design. The enclosure concept combines enhanced functionality with a slim design. It is also standard for all devices.
The enclosure concept scores with:
Needle-sharp laser labeling
Removable terminals and hinged covers
The winning enclosure is also used for several systems. Not only motor starters but also safety relays are housed in the same enclosure.
The new motor starters have certification in accordance with SIL3/ Pl 3 Cat. 4. The motor starters are available in the main versions direct-on-line and reversing starters.
They are also available in standard or fail-safe versions.
The motor starters are available with screw-type, spring-loaded and mixed connections. With mixed connections, you profit from the benefits of the screw-type and spring-loaded connections which simplify wiring in the main circuit as well as in the control circuit.
All motor starters are available for the following motor power ratings:
0 to 0,12 kW
0,09 to 0,75 kW
0,55 to 3 kW
Thanks to their wide setting range, they offer outstanding flexibility in terms of planning, commissioning and redesign. All motor starters are available with the following wide setting ranges:
0,1 to 0,5 A
0,4 to 2,0 A
1,6 to 7,0 A
This animation shows how easy it is to adjust the SIRIUS 3RM1 Motor Starter to the respective motor current in the relevant adjustment range. This enables you to be particularly flexible when it comes to configuring and planning, and when replacing the motor.
The direct-on-line starter is the most commonly employed version. The motor starter ensures reliable motor connection and disconnection. As a result, the motor always either rotates in clockwise or anti-clockwise direction. In addition, it protects the motors against overload. Functionally speaking, the compact motor starter accommodates one contactor and one overload relay.
Reversing starters are sometimes required for drive technology applications. Also this application can be realized with the motor starter. It supports the functional switching of motors in various directions of rotations. Functionally speaking, the compact motor starter accommodates two contactors and one overload relay. Whether direct-on-line or reversing starter – the motor starter's width never exceeds 22.5 mm.
Energy-efficient SIRIUS industrial controls help to minimize consumption and systematically increase efficiency. With our SIRIUS 3RM1 Motor starters, you benefit from comprehensive advantages in terms of energy efficient industrial controls.
Advantages at a glance
Especially economical thanks to hybrid switching technology
Combination of relay and solid-state technology
Switching on and off: Use of solid-state technology
Operating phase: Use of relay technology.
Motor starters save energy in this way and are especially non-wearing and sustainable
Hybrid Switching Technology
SIRIUS 3RM1 motor starters are extremely efficient as their operation is based on hybrid switching technology. The combination of relay and solid-state switching technology is unique and offers the advantages of both technologies.
For more information on energy efficiency made by Siemens and PROFIenergy please visit:
Upon request, SIRIUS 3RM1 motor starters are available with safety function. They can be flexibly combined with fail-safe controls.
SIRIUS 3RM1 Motor Starter with new Safety function
In the movie you may see how easy it is to shut down individual motor starters or entire motor starter groups safely with SIRIUS 3RM1 Motor Starters in combination with a F-PLC.
The SIRIUS 3RM1 motor starter capability for integration in the system of newly-innovated SIRIUS 3SK1 safety relays is a special highlight. This allows for extremely easy realization of safety-related disconnection.
Upon request, the direct-on-line and reversing starters are also available with safety function. Functionally speaking, the motor starter accommodates one contactor for each switching direction, one overload relay and one contactor for redundant assembly. All this in a width of only 22.5 mm.
The SIRIUS 3RM1 Failsafe motor starter provides the following advantages over a conventionally wired motor feeder:
Compact: Width of only 22.5 mm
Simple: Fewer components and less wiring
Efficient: Rapid wiring and minimized faults
All motor starters with safety function are ATEX-certified, thanks to which they can be used in hazardous areas.
SIRIUS 3RM1 motor starters can be employed in various sectors. They can be easily installed in classical control cabinets. Thanks to their compact design, they can also be directly integrated in encased system components in mechanical engineering applications. Typical application areas can be found in machine tool production.
The motor starters can be easily combined with small motors up to 3 kW. They are particularly suitable for applications where space is of the essence. Typical applications: Pumps, fans and blowers.
The application of motor starters is also recommendable for high switching frequencies thanks to their high ruggedness, particularly thanks to their durable hybrid switching technology.
The motor starters are also interesting for conveyor technology: They especially facilitate the group assembly of motors on conveyor belts.
Trade fair video: Start-up with a small footprint
Getting started in minimum space is really easy with the SIRIUS 3RM1 Motor Starter. This animation shows you just how much space can be saved in comparison to conventional relay/contactor assemblies
This animation shows you how simple infeed in the main circuit can be with the SIRIUS 3RM1 Motor Starter. It is particularly simple to implement group assemblies with just one motor starter protector. And it is also really easy to remove or replace individual motor starters with this infeed system.
Hybrid Switching Technology SIRIUS 3RM1
motor starters are extremely efficient as their operation is based on hybrid switching technology. The combination of relay and solid-state switching technology is unique and offers the advantages of both technologies.
No more replacing devices when a terminal is defective! The innovative housing design for the SIRIUS 3SK1 Safety Relays makes it possible to replace a defective terminal individually: just open the cover flap, detach the wiring of the terminal, push up the terminal fastener and remove the defective terminal. Then snap the new terminal into the fastener, reconnect the wires and close the cover flap. Done! The rest of the wiring stays just as it is, saving both time and effort.
Covering and labeling terminals
Wiring of the sensors and actuators is child's play. The individual terminals are labeled on the cover caps. The labeling is easily visible so wiring can be completed quickly. Each device is additionally labeled with 2D code. That facilitates identification and documentation with the help of 2D readers or a smartphone.
Something good is now even better: All SIRIUS 3SK1 Safety Relays and SIRIUS 3RM1 Motor Starters are available with optimized screw connections. The insertion angles for wiring and screwing have been adjusted so that wires and screwdrivers can be inserted into the terminals from the same direction - everything is easily visible.
There's a new way to make wiring easier: All SIRIUS 3SK1 Safety Relays and SIRIUS 3RM1 Motor Starters are also optionally available with spring-loaded connections that can be wired to the sensors and actuators without a tool. Simply insert the wire by hand at an easy-to-see angle in the terminal and you're done. The terminal operation for detaching the wiring is performed at the same angle.
Here's how to protect your device settings and system against unwanted access: SIRIUS 3SK1 Safety Relays can be secured with a lead seal covering and a lead seal wire on the front side. This prevents a displacement of the rotary coded switch setting and changes to the DIP switch position on the safety devices.
SIRIUS 3RM1 Motor Starters in the control cabinet