The Siemens 3RT2936-1BE00 is a genuine SIRIUS varistor surge suppressor designed to protect contactor coils and control circuits from harmful voltage spikes generated during switching operations. This compact accessory helps improve the reliability and service life of contactors by suppressing transient overvoltages and reducing electrical stress on control components. It is specifically designed for use with Siemens SIRIUS 3RT2 contactors, making it an essential accessory for industrial automation and motor control applications. Similar Siemens SIRIUS suppressors use clip-on mounting and provide effective coil surge protection for AC and DC control circuits.
The 3RT2936-1BE00 varistor suppressor is suitable for 127–240V AC (50/60 Hz) and 150–250V DC control voltages. When installed directly across the contactor coil, it absorbs switching surges and limits transient voltage peaks that can damage PLC outputs, relays, timers, sensors, and other sensitive electronic equipment. Varistor-based suppressors are widely used in industrial control systems to enhance operational reliability and reduce electrical noise.
Designed for seamless integration with Siemens SIRIUS 3RT2 Size S2 and S3 contactors, the 3RT2936-1BE00 features a compact clip-on mounting design that enables fast installation without additional wiring modifications. Its space-saving construction allows it to be easily integrated into motor control centers (MCCs), control panels, switchboards, and automation systems. Similar Siemens varistor suppressors for S2 and S3 contactors feature compact dimensions and universal mounting positions.
By suppressing coil-generated transients, the 3RT2936-1BE00 helps prevent nuisance tripping, reduces electromagnetic interference (EMI), minimizes contact wear, and improves overall control system stability. These benefits contribute to longer equipment life, reduced maintenance requirements, and improved process reliability in industrial environments.
Manufactured according to Siemens quality standards, the 3RT2936-1BE00 Varistor Surge Suppressor delivers dependable long-term performance and full compatibility with Siemens SIRIUS switching devices. It is commonly used in manufacturing plants, HVAC systems, process industries, machine-building projects, water treatment facilities, and industrial automation installations where reliable contactor operation is critical.
| Specification | Details |
|---|---|
| Product Name | Varistor Surge Suppressor |
| Brand | Siemens |
| Series | SIRIUS 3RT29 |
| Model Number | 3RT2936-1BE00 |
| SKU | 3RT2936-1BE00 |
| Product Type | Varistor Suppressor |
| Suppressor Design | Varistor |
| Rated AC Voltage | 127–240V AC |
| Frequency | 50/60 Hz |
| Rated DC Voltage | 150–250V DC |
| Voltage Type | AC/DC |
| Compatible Series | Siemens SIRIUS 3RT2 |
| Suitable Contactor Sizes | S2, S3 |
| Mounting Type | Clip-On |
| Function | Coil Surge Protection |
| Application | Transient Voltage Suppression |
| EMI Reduction | Yes |
| Operating Temperature | -25°C to +60°C |
| Storage Temperature | -40°C to +80°C |
| Mounting Position | Any |
| Product Family | Siemens SIRIUS Accessories |
| Compliance | CE, UL, CSA, RoHS |
No reviews yet.