Siemens 3RT2936-1CC00 SIRIUS RC Element Surge Suppressor for 3RT2.3 Contactors, 48-127V AC/70-150V DC, Size S2 Original Brand New

Overview

The Siemens 3RT2936-1CC00 is an essential surge suppression module from the reliable SIRIUS modular system, specifically engineered to protect the control circuit of Siemens 3RT2.3 power contactors (Size S2). This plug-in component uses a robust RC element (Resistor-Capacitor) to dampen voltage peaks and surges generated when the contactor coil is switched off (contact-breaking operation). This suppression is crucial for extending the life of your contactor and protecting sensitive electronic components within your control system. Its compact, clip-on design ensures simple and fast installation.

Benefit

• Extended Contactor Lifespan: Effectively suppresses the high-energy switching surge, significantly reducing wear and tear on contactor coil and contacts.
• Protection of Control Electronics: Shields sensitive solid-state control components (like PLC outputs) from damaging voltage spikes and transients.
• Reduced Electrical Noise: The RC element minimizes electromagnetic interference (EMI) generated during switching, ensuring cleaner operation for nearby electronic devices.
• Simple & Quick Installation: Designed for tool-free, front-side clip-on mounting directly onto compatible 3RT2.3 contactors, reducing installation time and complexity.
• Dual Voltage Versatility: Suitable for use in both AC (48-127V) and DC (70-150V) control circuits, offering flexibility in design and inventory.

Function & Operation

The RC element surge suppressor operates by providing a parallel path for the inductive energy stored in the contactor coil when the control voltage is disconnected. When the contactor coil is de-energized, the voltage across the coil spikes (inductive kick). The Resistor-Capacitor circuit absorbs and dissip dissipates this excess energy, preventing it from reaching a destructive level and protecting adjacent components and contacts from high-voltage arcing.

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