Siemens 3RT2916-1JK00 Surge Voltage Suppressor Protection Accessory

The Siemens 3RT2916-1JK00 is a compact and essential surge voltage suppressor accessory designed to protect Siemens SIRIUS contactor relays and motor contactors of size S00. This accessory integrates a varistor with LED indication to provide reliable surge protection, ensuring the longevity and operational stability of control circuits. With its versatile AC/DC control supply voltage compatibility, ranging from 48-127V AC at 50/60 Hz and 24-70V DC, the 3RT2916-1JK00 offers a robust solution for various industrial applications. Its straightforward clip-on mounting mechanism simplifies installation, making it a practical choice for engineers and technicians seeking to enhance the resilience of their control systems against transient voltage spikes.

Product Specifications

| Specification                      | Value                                                                    |

| :--------------------------------- | :----------------------------------------------------------------------- |

| Product Brand Name                 | SIRIUS                                                                   |

| Product Designation                | Surge suppressor                                                         |

| Product Type Designation           | 3RT29                                                                    |

| Size of Contactor                  | S00                                                                      |

| Design of Surge Suppressor         | Varistor with LED                                                        |

| Control Supply Voltage (AC)        | 48 - 127 V (at 50/60 Hz)                                                 |

| Control Supply Voltage (DC)        | 24 - 70 V                                                                |

| Mounting Type                      | Clip-on                                                                  |

| Dimensions (H x W x D)             | 46 mm x 28 mm x 9 mm                                                     |

| Ambient Temperature (Operation)    | -25 °C to +60 °C                                                         |

| Ambient Temperature (Storage)      | -40 °C to +80 °C                                                         |

| Certifications                     | CE, UL, CSA, CCC                                                         |

| Control Supply Voltage Type        | AC/DC                                                                    |

| Suitable for                       | 3RT2.1 contactors and 3RH2 auxiliary contactors             |

| Weight                             | 0.006 kg                                                       |

| Environmental Footprint (Total GWP)| 7.04 kg CO2 eq                                             |

Core Features & Market Positioning

The Siemens 3RT2916-1JK00 distinguishes itself through its seamless integration into the SIRIUS modular system, a testament to Siemens' commitment to comprehensive industrial automation solutions. Its primary advantage lies in its effective suppression of damaging voltage transients that can compromise control circuit integrity. The inclusion of an LED indicator provides a clear, visual status of the suppressor's operational condition, simplifying diagnostics and maintenance. Positioned as a high-reliability accessory, it safeguards sensitive electronic components within contactors and relays, thereby extending equipment lifespan and reducing unscheduled downtime. This focus on preventative protection aligns with industry demands for robust and dependable automation hardware.

Key Application Scenarios

This surge voltage suppressor finds critical application in a wide array of industrial settings where sensitive control electronics are employed. It is particularly valuable in manufacturing plants, process control systems, and building automation, protecting components within motor starters and control relays from transient overvoltages originating from grid fluctuations, lightning strikes, or switching operations of inductive loads. Its compatibility with size S00 SIRIUS contactors and relays makes it a go-to solution for applications involving pumps, fans, conveyor systems, and general machinery control, where consistent and reliable operation is paramount.

Practical System Integration Guidance

Integrating the Siemens 3RT2916-1JK00 is designed for simplicity. The unit features a clip-on mounting mechanism, allowing it to be directly attached to the front of compatible 3RT2.1 contactors and 3RH2 auxiliary contactors without the need for additional tools or complex wiring. This direct mounting approach ensures a compact installation footprint and simplifies maintenance access. Its AC/DC voltage versatility means it can be deployed across a broad spectrum of control circuits without requiring specific voltage-dependent variants. Technicians can readily attach it to the relevant control relays or contactors, providing immediate surge protection.

Operation and Risk Mitigation

The 3RT2916-1JK00 operates by diverting transient overvoltages away from the protected control circuit. The integrated varistor element absorbs voltage spikes, while the LED indicator provides visual confirmation of its operational status and health. In the event of a significant surge or prolonged overvoltage, the varistor may degrade or fail. A properly functioning suppressor will not require frequent troubleshooting. However, if the LED indicator shows no light or behaves erratically, it may signal a need for inspection or replacement. The primary risk mitigation provided by this device is the prevention of premature component failure due to voltage surges, thereby enhancing overall system safety and reliability.

Scalability & Long-Term Value

As part of the expansive Siemens SIRIUS ecosystem, the 3RT2916-1JK00 surge suppressor offers excellent long-term value and compatibility. It integrates seamlessly with other SIRIUS components, allowing for the expansion and modification of control panels without compromising protection levels. This modularity supports future upgrades or system redesigns, ensuring that protection strategies remain effective. While the device itself is not inherently scalable in terms of its protection rating, its role in preserving the lifespan of connected contactors and relays contributes significantly to the overall longevity and cost-effectiveness of the automated system. It supports the foundational requirements of reliable industrial operations, which are increasingly connected to IIoT and digital monitoring platforms by safeguarding critical control components.

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Frequently Asked Questions

What is the primary function of the Siemens 3RT2916-1JK00?

The Siemens 3RT2916-1JK00 functions as a surge voltage suppressor. Its main purpose is to protect sensitive control circuits within contactors and relays from transient overvoltages. It absorbs voltage spikes, preventing damage to connected components.

This accessory uses a varistor to divert excess voltage safely away from the control circuitry. The integrated LED indicator provides a quick visual status check of its operational condition. It is specifically designed for Siemens SIRIUS size S00 contactors and relays.

By mitigating voltage surges, it enhances the reliability and lifespan of the connected control devices. This protection is crucial in industrial environments prone to electrical disturbances.

What are the voltage specifications for the Siemens 3RT2916-1JK00?

The 3RT2916-1JK00 accommodates both AC and DC control supply voltages. For AC applications, it supports a range of 48 to 127 Volts at both 50 Hz and 60 Hz frequencies.

For DC control circuits, the suppressor is rated for a voltage range of 24 to 70 Volts. This dual-voltage capability makes it a versatile component for diverse control system designs.

The device is designed to protect SIRIUS size S00 contactors and relays, ensuring its operational parameters are well-matched to these components.

How is the Siemens 3RT2916-1JK00 installed?

Installation of the 3RT2916-1JK00 is designed to be straightforward and tool-free. It features a clip-on mounting mechanism.

This allows it to be easily attached directly to the front of compatible Siemens SIRIUS contactors (3RT2.1 series) and auxiliary contactors (3RH2 series) of size S00.

Its compact dimensions (46 mm height, 28 mm width, 9 mm depth) ensure it does not add significant bulk to the control panel assembly.

What is the role of the LED indicator on the 3RT2916-1JK00?

The LED indicator on the surge suppressor provides a visual status of its operational health. It allows for quick identification of whether the suppressor is functioning correctly.

If the LED is lit, it typically signifies that the surge suppressor is active and providing protection. If the LED is unlit or shows abnormal behavior, it may indicate that the suppressor has failed or is nearing the end of its service life.

Regular visual checks of the LED can help in proactive maintenance. A non-functional LED could mean the suppressor needs replacement to maintain adequate protection for the control circuit.

What types of applications is the Siemens 3RT2916-1JK00 suitable for?

The 3RT2916-1JK00 is ideal for protecting control circuits in various industrial automation applications. It is designed for use with Siemens SIRIUS size S00 contactors and relays.

Common applications include motor control systems for pumps, fans, and conveyor belts, as well as general machinery control where reliable operation is critical.

Its ability to protect against transient voltage spikes makes it valuable in environments susceptible to electrical noise or power grid fluctuations, ensuring system stability and uptime.

Does the 3RT2916-1JK00 offer protection against all types of electrical surges?

The 3RT2916-1JK00 is designed to suppress transient overvoltages, commonly referred to as surges. It is effective against sudden, short-duration voltage spikes.

It utilizes a varistor, which is a voltage-dependent resistor that clamps high voltages. This type of protection is standard for safeguarding control circuits in industrial environments.

However, it is not designed to protect against sustained overvoltages or direct lightning strikes of extreme magnitude, which may require different or supplementary protection devices.

What is the operational temperature range of the 3RT2916-1JK00?

The surge suppressor is designed to operate reliably within a specific ambient temperature range. During operation, it can withstand temperatures from -25°C to +60°C.

For storage, the allowable temperature range is wider, from -40°C to +80°C. This flexibility accommodates various storage conditions before installation.

Maintaining operation within these parameters ensures the longevity and effectiveness of the surge suppression function.

Can the 3RT2916-1JK00 be used with contactors of different sizes or brands?

The Siemens 3RT2916-1JK00 is specifically designed and optimized for use with Siemens SIRIUS size S00 contactors and auxiliary contactors.

While it might physically fit other components, its electrical characteristics and intended function are calibrated for these specific Siemens devices. Using it with incompatible components may lead to ineffective protection or component damage.

It is recommended to always consult the product documentation or Siemens' compatibility charts to ensure proper application and avoid potential issues.

What certifications does the Siemens 3RT2916-1JK00 have?

The 3RT2916-1JK00 holds several key international certifications, indicating its compliance with safety and performance standards. These include CE, UL, CSA, and CCC approvals.

These certifications are essential for product acceptance in various global markets, assuring users of its quality and adherence to industry regulations.

The device also typically comes with conformity declarations and may have specific test certificates available for download from Siemens' support portal.

What is the long-term value proposition of using this surge suppressor?

The long-term value is primarily derived from its protective function, which prevents premature failure of contactors and relays. This reduces maintenance costs and minimizes costly production downtime.

As part of the modular SIRIUS system, it integrates easily with other Siemens components, supporting system scalability and future modifications without compromising protection.

By extending the operational life of connected devices, the 3RT2916-1JK00 contributes to the overall reliability and cost-effectiveness of industrial control systems.