Advantages through energy efficiency

Overview of the energy management process

We offer you a unique portfolio for efficient energy management in the industry – a process that is used to optimize the energy requirements. We divide operational energy management into the three phases: identification, evaluation and implementation, and support you with suitable hardware and software solutions in each phase of the process.

The innovative SIRIUS industrial controls products can also make a major contribution to the energy efficiency of a plant. For more information, see http://www.siemens.com/sirius/energysaving.

With 3RM1 motor starters, control cabinets warm up less because power losses have been reduced by operation:

• Lower intrinsic power loss (than comparable motor feeders with thermal overload trip) thanks to electronic current analysis
• Lower control circuit power losses (compared with conventional switching devices) as a result of electronic control of switching points
• Thanks to the above advantages, additional energy savings are possible because less cooling is required (and a more compact design is possible)

Product advantages

The SIRIUS 3RM1 motor starters offer a number of benefits:

• Greater endurance and reduced heat losses thanks to hybrid technology
• Less space required in the control cabinet (20 to 80%) as a result of greater functional density
• Less wiring and testing required as a result of integrating several functions into a single device
• Lower costs for stock keeping and configuration as a result of the wide setting range of the electronic overload release (up to 1:5)
• Fast wiring without tools for rigid conductors or conductors equipped with end sleeves thanks to push-in spring-type connections
• Safety-orientated shutdown in accordance with SIL3/Ple by shutting down the control supply voltage without additional devices in the main circuit
• Motor status feedback to the higher-level control system in the case of 3RM10 and 3RM12 motor starters in the 24 V DC version
• Virtually error-free wiring on the mains connection side and reduction in short-circuit protective devices by means of 3RM19 infeed system
• ATEX certification: "Increased safety" type of protection EEx e according to ATEX Directive 94/9/EC (3RM1 motor starters in the Failsafe version are suitable for overload protection of explosion-proof motors with "increased safety" type of protection EEx e)