The Siemens 3RT2916-1EH00 is a genuine SIRIUS surge suppressor module featuring a diode combination design for effective suppression of switching-induced voltage spikes in DC-operated contactor coils. This accessory is specifically designed for Siemens SIRIUS 3RT2.1 contactors and 3RH2 auxiliary contactors (Size S00), helping protect sensitive control equipment and improve overall system reliability.
Designed for a wide operating range of 12–250V DC, the 3RT2916-1EH00 suppresses back EMF generated when contactor coils are de-energized. By limiting transient voltage peaks, it protects PLC outputs, relays, timers, sensors, and electronic controllers from electrical stress and premature failure.
The module utilizes a diode combination circuit, providing reliable suppression of coil-generated transients while ensuring stable operation of DC control circuits. This helps reduce electromagnetic interference (EMI), prevent nuisance switching, and extend the lifespan of connected automation components.
Featuring a compact front-mount clip-on design, the suppressor can be installed quickly without additional wiring modifications. Suitable for mounting in any position, it offers compact dimensions of approximately 46 × 28 × 9 mm, making it ideal for motor control centers (MCCs), industrial control panels, OEM machinery, process automation systems, and HVAC applications.
Manufactured according to Siemens quality standards, the 3RT2916-1EH00 operates reliably in temperatures ranging from -25°C to +60°C and weighs approximately 0.006 kg. As part of the Siemens SIRIUS accessories portfolio, it delivers dependable long-term protection for industrial motor control and automation systems.
| Specification | Details |
|---|---|
| Product Name | Diode Combination Surge Suppressor |
| Brand | Siemens |
| Series | SIRIUS 3RT29 |
| Model Number | 3RT2916-1EH00 |
| SKU | 3RT2916-1EH00 |
| Product Type | Surge Suppressor |
| Suppressor Design | Diode Combination |
| Operating 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 |
| Function | DC Coil Surge Protection |
| Application | Back EMF & Transient Voltage Suppression |
| Width | 28 mm |
| Height | 46 mm |
| Depth | 9 mm |
| Net Weight | 0.006 kg |
| Operating Temperature | -25°C to +60°C |
| Mounting Position | Any |
| Product Family | Siemens SIRIUS Accessories |
| Compliance | RoHS, CE |
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