The Siemens 3RT2916-1DG00 is a genuine SIRIUS surge suppressor module featuring an interference suppression diode designed to protect DC-operated contactor coils and control circuits from switching-induced voltage spikes. This accessory is specifically developed for Siemens SIRIUS 3RT2.1 contactors and 3RH2 auxiliary contactors (Size S00), helping improve control system reliability and extending the service life of connected automation components.
Designed for a wide operating range of 12–250V DC, the 3RT2916-1DG00 effectively suppresses back electromotive force (Back EMF) generated when contactor coils are de-energized. By limiting transient voltage peaks, it helps protect PLC outputs, relays, timers, sensors, and electronic control devices from electrical stress and potential damage.
The suppressor utilizes a diode-based surge suppression design, providing reliable protection for DC control circuits while minimizing electromagnetic interference and improving switching stability. This helps reduce nuisance faults, improves operational reliability, and supports longer equipment life in industrial applications.
Featuring a compact front-mount clip-on design, the 3RT2916-1DG00 can be installed quickly without additional wiring modifications. Suitable for mounting in any position, it offers compact dimensions of 46 mm × 28 mm × 9 mm, making it ideal for motor control centers (MCCs), industrial control panels, machine-building projects, HVAC systems, and process automation applications.
Manufactured according to Siemens quality standards, the suppressor operates reliably in ambient temperatures ranging from -25°C to +60°C and supports storage temperatures from -40°C to +80°C. Its lightweight design and robust construction ensure dependable long-term performance in demanding industrial environments.
As part of the trusted Siemens SIRIUS 3RT29 accessories range, the 3RT2916-1DG00 Interference Suppression Diode provides effective DC coil protection, enhanced system stability, and seamless compatibility with Siemens motor control and automation products.
| Specification | Details |
|---|---|
| Product Name | Interference Suppression Diode |
| Brand | Siemens |
| Series | SIRIUS 3RT29 |
| Model Number | 3RT2916-1DG00 |
| SKU | 3RT2916-1DG00 |
| Product Type | Surge Suppressor |
| Design | Suppression Diode |
| Rated Control Voltage | 12–250V DC |
| Voltage Type | DC |
| Suitable For | Siemens SIRIUS 3RT2.1 Contactors |
| Compatible Auxiliary Contactors | Siemens 3RH2 |
| Contactor Size | S00 |
| Mounting Type | Front Mount / Clip-On |
| Mounting Position | Any |
| Function | DC Coil Surge Protection |
| Application | Back EMF & Transient Voltage Suppression |
| Height | 46 mm |
| Width | 28 mm |
| Depth | 9 mm |
| Net Weight | Approx. 0.005 kg |
| Operating Temperature | -25°C to +60°C |
| Storage Temperature | -40°C to +80°C |
| Certifications | CE, UL, CSA |
| Product Family | Siemens SIRIUS Accessories |
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