The Siemens 3RT2926-1JK00 is a genuine SIRIUS surge suppressor module featuring a varistor with integrated LED indication, specifically designed to protect contactor coils and control circuits from switching-induced voltage spikes. This side-mounted accessory is suitable for Siemens SIRIUS 3RT2.2 contactors (Size S0) and helps improve system reliability by minimizing transient overvoltages and reducing electrical stress on connected control equipment.
The suppressor supports 48–127V AC (50/60 Hz) and 24–70V DC control voltages, making it suitable for a wide range of industrial automation, motor control, and switching applications. When installed across the contactor coil, the varistor absorbs switching surges and suppresses voltage peaks that could otherwise affect PLC outputs, relays, timers, sensors, and electronic control systems.
A key feature of the 3RT2926-1JK00 is its integrated LED status indicator, which provides clear visual confirmation of coil energization and control circuit status. This simplifies troubleshooting, commissioning, maintenance, and fault diagnosis while improving visibility inside electrical panels.
Designed with a compact clip-on side mounting mechanism, the suppressor can be installed quickly and securely on compatible SIRIUS contactors without additional wiring modifications. Its compact dimensions of 30 mm × 19 mm × 12 mm make it ideal for control panels, motor control centers (MCCs), OEM machinery, and automation systems where space optimization is important.
By reducing coil-generated transients and electromagnetic interference (EMI), the 3RT2926-1JK00 helps prevent nuisance tripping, extends equipment life, reduces contact wear, and improves overall control system stability. These advantages make it particularly suitable for manufacturing plants, HVAC systems, machine-building applications, process industries, water treatment facilities, and industrial automation environments.
Manufactured according to Siemens quality standards and carrying CE, UL, and CSA approvals, the 3RT2926-1JK00 Varistor with LED delivers dependable long-term performance and seamless compatibility with Siemens SIRIUS motor control products.
| Specification | Details |
|---|---|
| Product Name | Surge Suppressor with LED |
| Brand | Siemens |
| Series | SIRIUS 3RT29 |
| Model Number | 3RT2926-1JK00 |
| SKU | 3RT2926-1JK00 |
| Product Type | Varistor Surge Suppressor with LED |
| Suppressor Design | Varistor with LED Indicator |
| Rated AC Voltage | 48–127V AC |
| Rated DC Voltage | 24–70V DC |
| Frequency | 50/60 Hz |
| Voltage Type | AC/DC |
| Suitable For | Siemens SIRIUS 3RT2.2 Contactors |
| Contactor Size | S0 |
| Mounting Method | Clip-On / Side Mounting |
| Function | Coil Surge Protection & Status Indication |
| LED Indication | Yes |
| Dimensions (W × H × D) | 30 × 19 × 12 mm |
| Operating Temperature | -25°C to +60°C |
| Storage Temperature | -40°C to +80°C |
| Net Weight | Approx. 0.005 kg |
| Approvals | CE, UL, CSA |
| Product Family | Siemens SIRIUS Accessories |
No reviews yet.