Product Description
The Siemens 3RT1936-1CC00 is a vital component designed for use with 3RT1 contactors, specifically functioning as a surge suppressor. This varistor effectively mitigates voltage peaks that occur during switching operations, thereby protecting sensitive electronic components within the control circuit and extending the lifespan of the contactor itself. Its robust construction ensures reliable performance in demanding industrial environments, offering a simple and effective solution for minimizing electromagnetic interference and maintaining operational integrity. The 3RT1936-1CC00 provides a direct and secure connection, facilitating easy installation and integration into existing systems, contributing to enhanced system reliability and reduced downtime. This surge suppressor is an essential element for optimizing the performance and longevity of your motor control system.
Is Your Device Showing These Signs?
The Siemens 3RT1936-1CC00 auxiliary contact block commonly exhibits issues such as contact welding due to inrush current, leading to failure in signaling motor starter status. Terminal screw loosening from vibration causes intermittent electrical connections and operational faults. Oxidation buildup on contact surfaces increases resistance, hindering proper signal transmission. Mechanical wear of the actuator arm from repetitive switching cycles results in delayed or absent contact closure. Replacement of the auxiliary contact block is the definitive solution for these common failures.
Technical specifications
The Siemens 3RT1936-1CC00 is a vital component designed for use with 3RT1 contactors, specifically functioning as an auxiliary contact block. This block provides additional switching capabilities to the main contactor, expanding its control circuit functionality. It features a screw-type terminal connection for secure and reliable wiring, ensuring consistent electrical contact and minimizing the risk of loose connections that could disrupt operation. The 3RT1936-1CC00 offers a configuration of 1 normally open (NO) and 1 normally closed (NC) contact, providing versatility in control circuit design and allowing for implementation of interlocking, signaling, or other control functions. This auxiliary contact block is engineered to meet stringent industry standards, guaranteeing reliable performance and long operational life in demanding industrial environments. Its compact design facilitates easy integration into existing control panels, minimizing space requirements and simplifying installation procedures. The robust construction of the 3RT1936-1CC00 ensures resistance to vibration, shock, and temperature variations, making it suitable for a wide range of applications. This component is an essential addition to any 3RT1 contactor system requiring enhanced control capabilities and improved operational reliability.
Our Repair Process for the
3RT1936-1CC00
Our repair process for the Siemens 3RT1936-1CC00 auxiliary contact block begins with a comprehensive inspection to verify contact welding, terminal screw integrity, contact surface oxidation, and actuator arm wear. Upon confirmation of these common failure modes, the faulty auxiliary contact block is immediately removed from service. A new Siemens 3RT1936-1CC00 auxiliary contact block is installed, ensuring proper alignment and secure terminal connections. Post-installation testing confirms correct operation and reliable signaling of motor starter status, guaranteeing a complete and effective repair.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.

Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.

















