The Siemens 3RT2916-1BB00 is a genuine SIRIUS varistor surge suppressor designed to protect contactor coils and associated control circuits from switching-induced voltage spikes and transient overvoltages. This front-mounted accessory is specifically engineered for Siemens SIRIUS 3RT2.1 contactors and 3RH2 auxiliary contactors (Size S00), helping improve control system reliability and extend the operational life of connected equipment.
Designed for 24–48V AC (50/60 Hz) and 24–70V DC control voltages, the 3RT2916-1BB00 effectively absorbs surge voltages generated during coil switching operations. This protection helps safeguard PLC outputs, relays, timers, sensors, and other sensitive automation devices from electrical stress and potential damage.
The suppressor utilizes proven varistor technology, providing fast and reliable transient voltage suppression while minimizing electromagnetic interference (EMI) within industrial control systems. By reducing voltage peaks and electrical noise, it improves switching reliability, prevents nuisance tripping, and enhances overall system performance.
Featuring a compact front-mount clip-on design, the 3RT2916-1BB00 can be installed quickly without additional wiring modifications. Its compact dimensions make it ideal for motor control centers (MCCs), industrial control panels, OEM machinery, HVAC systems, and automation applications where space optimization is important.
The device supports installation in any mounting position and operates reliably in ambient temperatures ranging from -25°C to +60°C, with storage temperatures from -40°C to +80°C. Manufactured according to Siemens quality standards, it carries CE, UL, and CSA certifications, ensuring compliance with international industrial requirements.
As part of the trusted Siemens SIRIUS 3RT29 accessories range, the 3RT2916-1BB00 Varistor Surge Suppressor delivers dependable coil protection, reduced maintenance requirements, and long-term operational reliability for industrial motor control and automation systems.
| Specification | Details |
|---|---|
| Product Name | Varistor Surge Suppressor |
| Brand | Siemens |
| Series | SIRIUS 3RT29 |
| Model Number | 3RT2916-1BB00 |
| SKU | 3RT2916-1BB00 |
| Product Type | Surge Suppressor |
| Design | Varistor |
| Rated AC Voltage | 24–48V AC |
| Rated DC Voltage | 24–70V DC |
| Frequency | 50/60 Hz |
| Voltage Type | AC/DC |
| Suitable For | Siemens SIRIUS 3RT2.1 Contactors |
| Compatible Auxiliary Contactors | Siemens 3RH2 |
| Contactor Size | S00 |
| Mounting Type | Front Mount / Clip-On |
| Mounting Position | Any |
| Function | Coil Surge Protection |
| Application | Transient Voltage Suppression & EMI Reduction |
| Height | 46 mm |
| Width | 28 mm |
| Depth | 9 mm |
| Net Weight | 0.006 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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