The Siemens 3RT2926-1JL00 is a genuine SIRIUS surge suppressor module featuring a varistor with integrated LED indication, designed to protect contactor coils and control circuits from switching-induced voltage spikes. This accessory is specifically engineered for Siemens SIRIUS 3RT2.2 contactors (Size S0) and helps improve operational reliability by minimizing transient overvoltages and reducing electrical stress on connected control equipment.
The suppressor supports 127–240V AC (50/60 Hz) and 70–150V DC control voltages, making it suitable for a wide range of industrial automation and motor control 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 3RT2926-1JL00 is its integrated LED status indicator, which provides clear visual confirmation of coil energization and control circuit status. This simplifies troubleshooting, commissioning, and maintenance while enhancing system visibility for operators and maintenance personnel.
Designed with a compact clip-on mounting mechanism, the suppressor can be installed quickly and securely on compatible SIRIUS contactors without additional wiring modifications. Its space-saving dimensions of approximately 30 × 19 × 12 mm make it ideal for motor control centers (MCCs), industrial control panels, OEM machinery, and automation systems where panel space is limited.
By reducing coil-generated transients and electromagnetic interference (EMI), the 3RT2926-1JL00 helps prevent nuisance tripping, extends equipment life, minimizes contact wear, and improves overall control system stability. This makes it particularly valuable in manufacturing plants, HVAC systems, water treatment facilities, machine-building applications, and industrial process automation environments.
Manufactured according to Siemens quality standards and carrying CE, UL, and CSA approvals, the 3RT2926-1JL00 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 | 3RT2926-1JL00 |
| SKU | 3RT2926-1JL00 |
| Product Type | Varistor Surge Suppressor with LED |
| Suppressor Design | Varistor with LED Indicator |
| Rated AC Voltage | 127–240V AC |
| Rated DC Voltage | 70–150V DC |
| Frequency | 50/60 Hz |
| Voltage Type | AC/DC |
| Suitable For | Siemens SIRIUS 3RT2.2 Contactors |
| Contactor Size | S0 |
| Mounting Method | Clip-On |
| 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 |
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