The Siemens 3RT2926-1CB00 is a genuine SIRIUS RC element surge suppressor designed to protect contactor coils and control circuits from harmful switching surges and transient voltage spikes. This compact accessory is engineered for Siemens SIRIUS 3RT2.2 contactors (Size S0) and helps improve the reliability, performance, and lifespan of industrial control systems by reducing electrical stress caused by coil switching operations.
Designed for 24–48V AC (50/60 Hz) and 24–70V DC control voltages, the 3RT2926-1CB00 absorbs and suppresses voltage peaks generated when contactor coils are energized or de-energized. This protection helps safeguard PLC outputs, relays, timers, sensors, and other sensitive automation devices from transient overvoltage damage.
The suppressor utilizes a proven RC element design, which effectively minimizes switching transients and reduces electromagnetic interference (EMI) within industrial automation systems. By lowering electrical noise levels, the device improves operational stability, reduces nuisance tripping, and enhances the overall reliability of motor control circuits.
Featuring a compact clip-on side-mount design, the 3RT2926-1CB00 can be installed quickly without additional wiring modifications. Its space-saving construction makes it ideal for motor control centers (MCCs), control panels, OEM machinery, HVAC systems, water treatment plants, and industrial automation applications where panel space is limited.
The unit operates reliably in ambient temperatures ranging from -25°C to +60°C and can be mounted in any position. Manufactured according to Siemens quality standards, it provides dependable long-term protection and seamless integration with Siemens SIRIUS motor control products.
As part of the trusted Siemens SIRIUS accessories portfolio, the 3RT2926-1CB00 RC Element Surge Suppressor is an essential solution for protecting control circuits, reducing maintenance requirements, and improving the operational reliability of industrial electrical systems.
| Specification | Details |
|---|---|
| Product Name | RC Element Surge Suppressor |
| Brand | Siemens |
| Series | SIRIUS 3RT29 |
| Model Number | 3RT2926-1CB00 |
| SKU | 3RT2926-1CB00 |
| Product Type | Surge Suppressor |
| Suppressor Design | RC Element |
| Rated AC Voltage | 24–48V AC |
| Rated DC Voltage | 24–70V DC |
| Frequency | 50/60 Hz |
| Voltage Type | AC/DC |
| Suitable For | Siemens SIRIUS 3RT2.2 Contactors |
| Contactor Size | S0 |
| Mounting Method | Clip-On / Side Mount |
| Function | Coil Surge Protection |
| Application | Transient Voltage Suppression & EMI Reduction |
| Operating Temperature | -25°C to +60°C |
| Storage Temperature | -40°C to +80°C |
| Mounting Position | Any |
| Approx. Weight | 0.005 kg |
| Approvals | CE, UL, CSA |
| Product Family | Siemens SIRIUS Accessories |
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