The Siemens 3RT2916-1DG00 is a genuine Siemens SIRIUS Suppression Diode Surge Suppressor designed for compatible 3RT2.1 contactors and 3RH2 auxiliary contactors. This contactor coil surge suppressor is specifically designed for DC control circuits and helps suppress voltage transients generated when inductive contactor coils are switched.
With a wide 12–250V DC control supply voltage range, the 3RT2916-1DG00 provides a practical solution for protecting control circuits used in industrial automation, motor control panels, machine control systems and electrical control cabinets. Siemens specifies this accessory for S00-size contactors.
The 3RT2916-1DG00 suppression diode uses diode-based interference suppression technology to reduce switching-related voltage spikes from DC contactor coils. This can help reduce electrical stress on associated control components and support dependable operation of contactor-based switching systems.
The device features clip-on mounting, allowing convenient installation on compatible Siemens contactors. It can be installed in any mounting position and has compact dimensions of 46 mm × 28 mm × 9 mm. The specified operating ambient temperature range is -25°C to +60°C, while the storage temperature range is -40°C to +80°C. The net weight is approximately 5 g.
The Siemens 3RT2916-1DG00 is suitable for applications including industrial motor control, motor starters, DOL starters, PLC-controlled machines, automation panels, OEM control cabinets, MCC panels and industrial switching systems where compatible 3RT2.1 or 3RH2 contactors are used.
Genuine Siemens SIRIUS Surge Suppressor
Model: 3RT2916-1DG00
Product Type: Suppression Diode
Product Category: Surge Suppressor
Product Designation: Interference Suppression Diode
Product Type Designation: 3RT29
Compatible with Siemens 3RT2.1 Contactors
Compatible with Siemens 3RH2 Auxiliary Contactors
Contactor Size: S00
Control Supply Type: DC
DC Control Voltage: 12–250V DC
Diode-based surge suppression
Designed for DC contactor coils
Helps suppress switching voltage transients
Clip-on mounting
Mounting position: Any
Dimensions: 46 × 28 × 9 mm
Net Weight: approximately 5 g
Operating temperature: -25°C to +60°C
Storage temperature: -40°C to +80°C
CE / UL / CSA suitability
Active Siemens product
Siemens SIRIUS contactor accessory
Siemens 3RT2.1 Contactor Accessories
Siemens 3RH2 Auxiliary Contactor Accessories
DC Contactor Coil Protection
Industrial Motor Control Panels
Motor Starter Assemblies
DOL Motor Starters
Motor Control Centers (MCC)
Industrial Automation Panels
PLC-Controlled Machinery
Machine Control Systems
OEM Control Cabinets
Factory Automation Systems
Electrical Control Panels
Manufacturing Equipment
Industrial Switching Applications
DC Control Circuits
Contactor Coil Interference Suppression
Helps suppress voltage spikes generated during DC contactor switching
Helps reduce electrical stress on control components
Supports reliable operation of contactor control circuits
Wide 12–250V DC operating range
Diode-based suppression for compatible DC coils
Designed specifically for Siemens 3RT2.1 and 3RH2 contactors
Compact design helps save panel space
Clip-on mounting enables convenient installation
Suitable for industrial automation and motor-control applications
Useful for OEM control panels and machine builders
Suitable for maintenance and replacement applications
Genuine Siemens SIRIUS accessory
The 3RT2916-1DG00 is a Siemens SIRIUS suppression diode surge suppressor designed for compatible 3RT2.1 contactors and 3RH2 auxiliary contactors.
The Siemens 3RT2916-1DG00 supports a 12–250V DC control supply voltage.
It is designed for Siemens 3RT2.1 contactors and 3RH2 auxiliary contactors and is specified for S00 contactor size.
The 3RT2916-1DG00 is an interference suppression diode / suppression diode type surge suppressor.
No. This specific model is specified for a DC control supply voltage of 12–250V DC. For AC control circuits, the appropriate Siemens surge suppressor variant should be selected according to the contactor coil voltage.
No. The Siemens specification identifies this product as a suppression diode, not a varistor-with-LED version.
The accessory uses clip-on mounting and can be installed in any mounting position on compatible contactors.
The specified dimensions are 46 mm height × 28 mm width × 9 mm depth.
The operating ambient temperature range is -25°C to +60°C. The storage temperature range is -40°C to +80°C.
The specified net weight is approximately 5 g.
No. The 3RT2916-1DG00 is a surge suppressor accessory, not a complete contactor. It is installed on compatible Siemens 3RT2.1 and 3RH2 devices.
The 3RT2916-1DG00 offers a wide 12–250V DC suppression range, compact construction and clip-on installation, making it suitable for DC contactor control circuits in industrial automation, motor control and machine-control applications.
| 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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