The Siemens 3RT2946-1CC00 is a genuine SIRIUS surge suppressor RC element designed to protect contactor coils and associated control circuits from voltage spikes generated during switching operations. This accessory is specifically engineered for Siemens SIRIUS 3RT2 contactors (Size S3) and helps improve the reliability and lifespan of industrial control systems by minimizing electromagnetic interference (EMI) and transient overvoltages.
The RC suppressor is designed for control voltages ranging from 48–127V AC (50/60 Hz) and 70–150V DC, making it suitable for a wide variety of industrial automation and motor control applications. When installed across the contactor coil, the module effectively absorbs switching surges and reduces voltage peaks that can affect sensitive electronic devices such as PLCs, relays, timers, and control equipment.
The 3RT2946-1CC00 features a compact clip-on mounting design, allowing quick and secure installation directly onto compatible Siemens SIRIUS contactors without additional wiring modifications. Its compact construction saves panel space while providing effective surge suppression performance.
By reducing coil-generated transients, the suppressor helps prevent unintended switching, protects electronic components, minimizes contact wear, and improves overall system stability. This makes it an essential accessory for motor control centers (MCCs), automation panels, machine-building projects, HVAC systems, process plants, and industrial manufacturing facilities.
Manufactured to Siemens quality standards, the 3RT2946-1CC00 RC Element ensures long-term operational reliability and seamless compatibility with Siemens SIRIUS switching devices. It is commonly used as a preventive protection accessory in industrial control circuits where switching frequency and electrical noise are critical considerations.
| Specification | Details |
|---|---|
| Product Name | Surge Suppressor RC Element |
| Brand | Siemens |
| Series | SIRIUS |
| Model Number | 3RT2946-1CC00 |
| SKU | 3RT2946-1CC00 |
| Product Type | RC Surge Suppressor |
| Suppressor Type | RC Element |
| Rated AC Voltage | 48–127V AC |
| Rated DC Voltage | 70–150V DC |
| Frequency | 50/60 Hz |
| Compatible Contactor Series | Siemens SIRIUS 3RT2 |
| Suitable Contactor Size | S3 |
| Mounting Type | Clip-On |
| Function | Coil Surge Protection |
| Application | EMI Reduction & Transient Suppression |
| Color | Black |
| Dimensions | Approx. 30 × 19 × 12 mm |
| Industrial Applications | MCC Panels, Automation Systems, Motor Control Panels |
| Product Family | Siemens SIRIUS Accessories |
No reviews yet.