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Siemens

Circuit board

Prioritize circuit protection with Siemens to prevent costly downtime

Quick-deploying solutions that optimize reliability, MRO efficiency, and brand loyalty.

As automated buildings and industries grow, reliable circuit protection becomes essential for productivity and competitiveness. Unexpected equipment failures can lead to costly downtime — making intuitive protection a priority from the outset.

  • For OEM: This approach mitigates risks, enhances brand reputation, and streamlines operations
  • For MRO: Advanced circuit protection is vital for ensuring safety and improving maintenance efficiency

Siemens circuit protection solutions not only deliver exceptional safety and efficiency but also foster proactive maintenance and a culture of reliability and trust among stakeholders.

  • Easy integration and quick deployment into existing systems
  • Compliance with evolving industrial standards
  • Real-time monitoring for proactive maintenance
  • Robust designs that reduce equipment failure risk

Sourcing Siemens at RS offers you fast, easy access to a one-stop shop for all your operational needs, with an extensive range of best-in-class products and valuable technical expertise essential for long-term success.

 

Spotlight: Siemens circuit protection products


VBII Series Heavy Duty Safety Switches

Enhance safety and reliability with durable, quick-install design featuring visible blade construction, available in 30–1200A for fusible and non-fusible applications.

SIRIUS 3RT Contactors

Experience outstanding contact reliability up to 2,650A and extreme ruggedness in compact control cabinets with high packing density.

SIRIUS 3RV Motor Starter Protectors

Ensure total machine health with superior protection against power supply overload that can lead to expensive equipment damage.

3VA Series Molded Case Circuit Breakers

Meet all energy distribution needs for protecting cables, electrical loads, and industrial equipment against electrically induced damage and downtime.

5SJ4 Series HG Miniature Circuit Breakers

Prevent equipment failure and damage to electrical circuits in event of excess currents with compact, quick-trip breaking designed for national/international applications.

5SY6 Supplementary Protectors

Guarantee convenient, safe, time-saving assembly and utilize as a main control for disconnecting or isolating plants.

Safety Switches


Support your plant’s digitalization strategy and ensure high contact reliability, prolonged endurance, and usability in extreme conditions. 

HNF361R Safety Switch

HNF361R Safety Switches

HF361R Safety Switches

HF361R Safety Switches

HF361 Safety Switch

HF361 Safety Switches

Contactors


Support your plant’s digitalization strategy and ensure high contact reliability, prolonged endurance, and usability in extreme conditions. 

3RT20161BB42 SIRIUS 3RT Contactor

3RT20161BB42 SIRIUS 3RT Contactors

3RT20161BB41 SIRIUS 3RT Contactor

3RT20161BB41 SIRIUS 3RT Contactors

3RT20261AK60 SIRIUS 3RT Contactor

3RT20261AK60 SIRIUS 3RT Contactors

Motor Starter Protectors


Achieve reliable protection and switching for three-phase motors and other loads. Scalable settings safeguard all standard motors at ambient temperatures of ≤ 60°C.

3RV20111HA10 SIRIUS 3RV Motor Starter Protector

3RV20111HA10 SIRIUS 3RV Motor Starter Protectors

3RV20111FA10 SIRIUS 3RV Motor Starter Protector

3RV20111FA10 SIRIUS 3RV Motor Starter Protectors

3RV20214AA10 SIRIUS 3RV Motor Starter Protector

3RV20214AA10 SIRIUS 3RV Motor Starter Protectors 

Molded Case Cicuit Breakers


Safely cut connected circuits and reliably protect electrical systems and devices. Easy to assemble and install, plus expand devices with accessories to include more functions. 

3VA51606ED310AA0 Molded Case Circuit Breaker

3VA51606ED310AA0 Molded Case Circuit Breaker

3VA51104ED310AA0 Molded Case Circuit Breaker

3VA51104ED310AA0 Molded Case Circuit Breaker

3VA51954ED310AA0 Molded Case Circuit Breaker

3VA51954ED310AA0 Molded Case Circuit Breaker

Miniature Circuit Breakers


Safely cut connected circuits and reliably protect electrical systems and devices. Easy to assemble and install, plus expand devices with accessories to include more functions. 

5SJ4102-7HG40 Miniature Circuit Breaker

5SJ4102-7HG40 Miniature Circuit Breaker

5SJ4104-7HG40 Miniature Circuit Breaker

5SJ4104-7HG40 Miniature Circuit Breaker

5SJ4110-7HG40 Miniature Circuit Breaker

5SJ4110-7HG40 Miniature Circuit Breaker

Supplementary Protectors


Safeguard more sensitive devices in your panel with additional, faster-tripping (vs. standard UL489) protection alongside branch circuit devices. 

5SY61106 Miniature Circuit Breaker

5SY61106 Miniature Circuit Breakers

5SY6110-7 Series Circuit Breaker

5SY6110-7 Series Circuit Breaker

5SY6104-7 Series Circuit Breaker

5SY6104-7 Series Circuit Breaker

Videos


Siemens SENTRON 5SY Miniature Circuit Breakers

Overview: Siemens 3VA Molded Case Circuit Breakers

Siemens 5SJ4 HG Miniature Circuit Breakers

Siemens Safety Switches with Make-and-Break Operation