The Siemens 3RT2936-1CD00 is a genuine SIRIUS surge suppressor RC element designed to protect contactor coils and control circuits from harmful voltage spikes generated during switching operations. This accessory is specifically developed for Siemens SIRIUS 3RT2 contactors, Size S2, and helps improve system reliability by reducing transient overvoltages and electromagnetic interference (EMI).
The RC suppressor is suitable for control voltages ranging from 127–240V AC (50/60 Hz) and 150–250V DC. When mounted directly across the contactor coil, it absorbs switching surges and minimizes voltage peaks that could otherwise affect PLCs, relays, timers, electronic controllers, and other sensitive automation equipment.
Designed for seamless integration with Siemens 3RT2 Size S2 contactors, the 3RT2936-1CD00 features a compact clip-on design that enables fast installation without increasing the external dimensions of the contactor assembly. This makes it an ideal solution for control panels, motor control centers (MCCs), and industrial automation systems where space optimization is important.
By suppressing coil-generated transients, the RC element helps prevent unintended switching operations, reduces electrical noise, extends the lifespan of switching devices, and improves overall control system stability. These benefits make it particularly valuable in manufacturing plants, process industries, HVAC systems, machine-building projects, water treatment facilities, and automation applications.
Manufactured according to Siemens quality standards, the 3RT2936-1CD00 Surge Suppressor delivers dependable long-term performance and full compatibility with Siemens SIRIUS switching devices. It serves as an essential protection accessory for maintaining reliable operation in industrial control circuits.
| Specification | Details |
|---|---|
| Product Name | Surge Suppressor RC Element |
| Brand | Siemens |
| Series | SIRIUS 3RT29 |
| Model Number | 3RT2936-1CD00 |
| SKU | 3RT2936-1CD00 |
| Product Type | RC Surge Suppressor |
| Suppressor Design | RC Element |
| Rated AC Voltage | 127–240V AC |
| Frequency | 50/60 Hz |
| Rated DC Voltage | 150–250V DC |
| Voltage Type | AC/DC |
| Suitable Contactor Size | S2 |
| Compatible Series | Siemens SIRIUS 3RT2 |
| Mounting Type | Clip-On |
| Function | Coil Surge Protection |
| Application | EMI Reduction & Transient Voltage Suppression |
| Operating Temperature | -25°C to +60°C |
| Net Weight | Approx. 0.009 kg |
| Product Family | Siemens SIRIUS Accessories |
| Compliance | CE, RoHS |
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