• P1G295741

    Siemens P1G295741 6MD85 Bay Controller

    Siemens P1G295741 Device: 6MD85 Bay Controller Housing type: Flush mounting; BI: 71; BO: 23 (17ST + 6F + 0H S + 0P); CT: 0 (protection) + 4 (sensitive); VT: 4 (standard ); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 4 (20 mA, standard); |Housing width: 5/6 x 19”; |Modules in 19″ row 1:…

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  • P1G295723

    Siemens P1G295723 6MD85 Bay Controller

    Siemens P1G295723 Device: 6MD85 Bay Controller Housing type: Flush mounting; BI: 35; BO: 33 (27ST + 6F + 0H S + 0P); CT: 0 (protection) + 4 (sensitive); VT: 4 (standard ); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 4 (20 mA, standard); |Housing width: 1/2 x 19”; |Modules in 19″ row 1:…

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  • P1E178037 7SS85

    Siemens P1E257440 7SS85 Busbar Protection

    Siemens P1E257440 Device: 7SS85 Busbar Protection 2 zones, 4 bays incl., discI m Housing type: Flush mounting; BI: 87; BO: 39 (3ST + 36F + 0HS + 0P); CT: 72 (protection) ; VT: 0 (standard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 0 (20 mA, standard); |Housing width: 2 x 19”; |Modules in…

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  • P1E178037 7SS85

    Siemens P1E257422 7SS85 Busbar Protection

    Siemens P1E257422 Device: 7SS85 Busbar Protection 2 zones, 4 bays incl., discI m Housing type: Flush mounting; BI: 75; BO: 27 (3ST + 24F + 0HS + 0P); CT: 48 (protection) ; VT: 0 (standard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 0 (20 mA, standard); |Housing width: 1 x 19” + 1/2…

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  • P1E178037 7SS85

    Siemens P1E257404 7SS85 Busbar Protection

    Siemens P1E257404 Device: 7SS85 Busbar Protection 2 zones, 4 bays incl., discI m Housing type: Flush mounting; BI: 27; BO: 31 (19ST + 12F + 0HS + 0P); CT: 24 (protectio n); VT: 0 (standard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 0 (20 mA, standard); |Housing width: 5/6 x 19”; |Modules in…

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  • P1E178037 7SS85

    Siemens P1E178073 7SS85 Busbar Protection

    Siemens P1E178073 Device: 7SS85 Busbar Protection 2 zones, 4 bays incl., discI m Housing type: Flush mounting; BI: 87; BO: 39 (3ST + 36F + 0HS + 0P); CT: 72 (protection) ; VT: 0 (standard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 0 (20 mA, standard); |Housing width: 2 x 19”; |Modules in…

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  • P1E178037 7SS85

    Siemens P1E178055 7SS85 Busbar Protection

    Siemens P1E178055 Device: 7SS85 Busbar Protection 2 zones, 4 bays incl., discI m Housing type: Flush mounting; BI: 75; BO: 27 (3ST + 24F + 0HS + 0P); CT: 48 (protection) ; VT: 0 (standard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 0 (20 mA, standard); |Housing width: 1 x 19” + 1/2…

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  • P1E178037 7SS85

    Siemens P1E178037 7SS85 Busbar Protection

    Siemens P1E178037 Device: 7SS85 Busbar Protection 2 zones, 4 bays incl., discI m with Standardvariant Housing type: Flush mounting; BI: 15 ; BO: 15 (3ST + 12F + 0HS + 0P ); CT: 24 (protection); VT: 0 (standard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 0 (20 mA, standard); |Housing width: 2/3 x…

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  • P1H14030 7SK82

    Siemens P1H5236 7SK82 Motor protection

    Siemens P1H5236 Device: 7SK82 Motor protection with Standardvariant Housing type: Flush mounting; BI: 11; BO: 9 (9ST + 0F + 0HS + 0P); C T: 4 (protection); VT: 4 (stan dard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 0 (20 mA, standard); |Housing width: 1/3 x 19”; |Modules in 19″ row 1: IO102,…

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  • P1H14030 7SK82

    Siemens P1H4529 7SK82 Motor protection

    Siemens P1H4529 Device: 7SK82 Motor protection with Standardvariant Housing type: Flush mounting; BI: 11; BO: 9 (9ST + 0F + 0HS + 0P); C T: 4 (protection); VT: 0 (stan dard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 0 (20 mA, standard); |Housing width: 1/3 x 19”; |Modules in 19″ row 1: IO101,…

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  • P1H14030 7SK82

    Siemens P1H3867 7SK82 Motor protection

    Siemens P1H3867 Device: 7SK82 Motor protection with Standardvariant Housing type: Flush mounting; BI: 11; BO: 9 (9ST + 0F + 0HS + 0P); C T: 4 (protection); VT: 0 (stan dard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 0 (20 mA, standard); |Housing width: 1/3 x 19”; |Modules in 19″ row 1: IO101,…

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  • P1H14030 7SK82

    Siemens P1H2202 7SK82 Motor protection

    Siemens P1H2202 Device: 7SK82 Motor protection with Standardvariant Housing type: Flush mounting; BI: 11; BO: 9 (9ST + 0F + 0HS + 0P); C T: 4 (protection); VT: 0 (stan dard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 0 (20 mA, standard); |Housing width: 1/3 x 19”; |Modules in 19″ row 1: IO101,…

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  • P1H14030 7SK82

    Siemens P1H20165 7SK82 Motor protection

    Siemens P1H20165 Device: 7SK82 Motor protection with Standardvariant Housing type: Flush mounting; BI: 11; BO: 9 (9ST + 0F + 0HS + 0P); C T: 3 (protection) + 1 (sensiti ve); VT: 4 (standard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 0 (20 mA, standard); |Housing width: 1/3 x 19”; |Modules in 19″…

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  • P1H14030 7SK82

    Siemens P1H16038 7SK82 Motor protection

    Siemens P1H16038 Device: 7SK82 Motor protection with Standardvariant Housing type: Flush mounting; BI: 11; BO: 9 (9ST + 0F + 0HS + 0P); C T: 3 (protection) + 1 (sensiti ve); VT: 4 (standard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 0 (20 mA, standard); |Housing width: 1/3 x 19”; |Modules in 19″…

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  • P1H14030 7SK82

    Siemens P1H14030 7SK82 Motor protection

    Siemens P1H14030 Device: 7SK82 Motor protection with Standardvariant Housing type: Flush mounting; BI: 11; BO: 9 (9ST + 0F + 0HS + 0P); C T: 4 (protection); VT: 4 (stan dard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 0 (20 mA, standard); |Housing width: 1/3 x 19”; |Modules in 19″ row 1: IO102,…

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  • P1F33576 7UT82

    Siemens P1F37785 7UT Transformer Differential Protection Device

    Siemens P1F37785 Device: 7UT82 Transformer Protection (2 Wind.) with Standardvariant Housing type: Flush mounting; BI: 7; BO: 7 (7ST + 0F + 0HS + 0P); CT: 8 (protection); VT: 0 (standard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 0 (20 mA, standard); |Housing width: 1/3 x 19”; |Modules in 19″ row 1: IO103,…

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  • P1F267289 7UT86

    Siemens P1F370495 7UT Transformer Differential Protection Device

    Siemens P1F370495 Device: 7UT86 Transformer Protection (3 Wind.) Housing type: Flush mounting; BI: 41; BO: 36 (26ST + 10F + 0HS + 0P); CT: 12 (prote ction); VT: 8 (standard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 4 (20 mA, standard); |Housing width: 1 x 19”; |Modules in 19″ row 1: IO203, PS201,…

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  • P1F267289 7UT86

    Siemens P1F370477 7UT Transformer Differential Protection Device

    Siemens P1F370477 Device: 7UT86 Transformer Protection (3 Wind.) Housing type: Flush mounting; BI: 41; BO: 36 (26ST + 10F + 0HS + 0P); CT: 11 (prote ction) + 1 (sensitive); VT: 8 (standard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 4 (20 mA, standard); |Housing width: 1 x 19”; |Modules in 19″ row…

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  • P1F267289 7UT86

    Siemens P1F370459 7UT Transformer Differential Protection Device

    Siemens P1F370459 Device: 7UT86 Transformer Protection (3 Wind.) Housing type: Flush mounting; BI: 41; BO: 36 (26ST + 10F + 0HS + 0P); CT: 11 (prote ction) + 1 (sensitive); VT: 8 (standard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 4 (20 mA, standard); |Housing width: 1 x 19”; |Modules in 19″ row…

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  • P1F267252 7UT85

    Siemens P1F370431 7UT Transformer Differential Protection Device

    Siemens P1F370431 Device: 7UT85 Transformer Protection (2 Wind.) Housing type: Flush mounting; BI: 45; BO: 38 (34ST + 4F + 0HS + 0P); CT: 7 (protect ion) + 1 (sensitive); VT: 8 (s tandard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 4 (20 mA, standard); |Housing width: 5/6 x 19”; |Modules in 19″…

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  • P1F267252 7UT85

    Siemens P1F370413 7UT Transformer Differential Protection Device

    Siemens P1F370413 Device: 7UT85 Transformer Protection (2 Wind.) Housing type: Flush mounting; BI: 45; BO: 38 (34ST + 4F + 0HS + 0P); CT: 7 (protect ion) + 1 (sensitive); VT: 8 (s tandard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 4 (20 mA, standard); |Housing width: 5/6 x 19”; |Modules in 19″…

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  • P1F33576 7UT82

    Siemens P1F37004 7UT Transformer Differential Protection Device

    Siemens P1F37004 Device: 7UT82 Transformer Protection (2 Wind.) with Standardvariant Housing type: Flush mounting; BI: 7; BO: 7 (7ST + 0F + 0HS + 0P); CT: 8 (protection); VT: 0 (standard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 0 (20 mA, standard); |Housing width: 1/3 x 19”; |Modules in 19″ row 1: IO103,…

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  • P1F267289 7UT86

    Siemens P1F368205 7UT Transformer Differential Protection Device

    Siemens P1F368205 Device: 7UT86 Transformer Protection (3 Wind.) Housing type: Flush mounting; BI: 41; BO: 36 (26ST + 10F + 0HS + 0P); CT: 12 (prote ction); VT: 8 (standard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 4 (20 mA, standard); |Housing width: 1 x 19”; |Modules in 19″ row 1: IO203, PS201,…

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  • P1F267252 7UT85

    Siemens P1F368180 7UT Transformer Differential Protection Device

    Siemens P1F368180 Device: 7UT85 Transformer Protection (2 Wind.) Housing type: Flush mounting; BI: 45; BO: 38 (34ST + 4F + 0HS + 0P); CT: 8 (protect ion); VT: 8 (standard); |Measuring-transducer inputs: 0 (20 mA or 10 V, fast), 4 (20 mA, standard); |Housing width: 5/6 x 19”; |Modules in 19″ row 1: IO203, PS201,…

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Siemens Protection Relays for Reliable Control

The Siemens Protection Relays are digital devices that are designed to protect industrial machinery and power distribution networks from faults and abnormalities, including accidental overloads and overcurrent. Their compact, robust, and user-friendly design makes them easy to install and suitable for all industrial setups.

At PLCS & Automation, we have a significant inventory of Siemens Protection Relays designed for safer industrial operations.

Main Functions of the Siemens Protection Relays

The core functions served by the Siemens Protection Relays are:

  • Fault Detection: This is done by measuring key parameters, which include current, voltage, and phase.
  • Fault Isolation: The device disconnects the faulty system and isolates it by tripping the circuit breaker.
  • Equipment Protection: Preventing damage to valuable equipment due to overcurrent, overloads, or a short-circuit.
  • Maintaining System Stability: By protecting against fluctuations and instabilities, these improve system stability and performance.

Key Features of the Siemens Protection Relays

The notable features that are offered by the Siemens Protection Relays are:

  • Comprehensive Functions: From overcurrent and differential protection to voltage and motor protection, these offer a range of functions.
  • Fast and Stable Performance: The design and algorithms allow fault-free detection and tripping.
  • Flexible Communication: Integrated communication allows direct, redundant communication.
  • Cybersecurity: Built-in features protect the devices while monitoring grid availability.
  • User-Friendly Operation: The DIGSI engineering tool and plug-and-play design make the devices easy to install and operate.
  • Rugged Design: This allows the devices to be installed in industrial settings.
  • Digital Capabilities: Using the SIPROTEC DigitalTwin, the devices can be tested virtually.

Popular Models for Siemens Protection Relays

The popular models offered by Siemens for protective relays include:

  • SIPROTEC 4: Reliable and flexible, the SIPROTEC 4 offers precise and efficient control for a range of industrial applications, ensuring long-term performance.
  • SIPROTEC 5: The SIPROTEC 5 modular relay platform is a flexible, scalable, and robust device for monitoring industrial applications.
  • REYROLLE: Offering overcurrent and line differential protection, these Siemens transformer protection relays find use in the energy distribution sector.
  • REYROLLE 5: Offering a plug-in system for easy integration, the Reyrolle 5 is compatible with DCS systems and improves operational efficiency.
  • SIPROTEC Compact: Compact and reliable, these space-saving protection relays are designed to work in distribution as well as industrial grids.

Applications

The industries that use the Siemens Protection Relays are:

  • Energy Sector: Protecting generators, transmission networks, grids, and inverters.
  • Manufacturing: Safeguarding machinery and motors.
  • Oil and Gas: Ensuring operational safety of drilling rigs and refineries.
  • Water and Wastewater Treatment: Protects pumps and compressors.

Browse Our Selection of Siemens Protection Relays

Explore our inventory of Siemens Protection Relays and associated devices that help safeguard your industrial equipment. Need help choosing the correct product range or model? Reach out to our experts and we will assist you in finding the perfect product for your industrial operations.

 

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Frequently Asked Questions

What is Siemens’ Line Differential Protection Relay?

The SIPROTEC 5 and Reyrolle Siemens’ line differential protection relays detect faults such as internal faults, phase-to-phase, and phase-to-ground faults by measuring the current flow at different points.

What is the Main Function of the Siemens Distance Protection Relay?

The primary function of the Siemens distance protection relay is to isolate faults occurring on power transmission lines by calculating impedance, allowing fault detection, and resolution.

What Siemens Protection Relay Software Does the Device Run on?

The SIPROTEC 4 operates using the DIGSI 4, the SIPROTEC 5 is equipped with DIGSI 5, while the Reyrolle range uses the Reydisp software.

Is the Siemens Voltage Protection Relay Different From the Siemens Motor Protection Relay and the Siemens Transformer Protection Relay?

The voltage protection relays are designed to offer protection against sudden voltage deviations and fluctuations. On the other hand, the Siemens motor protection relay will provide comprehensive protection to motors and ensure zero mechanical and electrical faults and safe operations. Last but not least, the Siemens transformer protection relays are designed to protect transformers from internal faults.