Shelly RC Snubber - Protective Accessory for Inductive Loads and Interference Suppression

TheShelly RC Snubber is an essential protection component for any intelligent electrical installation controlling inductive loads. This small but highly effective device is designed to absorb the voltage spikes (self-induction) that occur when an electrical circuit is closed or opened. Its use is crucial to prevent premature damage to relays and ensure stable operation of the entire smart home ecosystem.

Key Selling Points

• Relay and Contact Protection: When controlling devices with motors or coils, arcing occurs when switching. The Shelly RC Snubber eliminates this arcing, preventing "sticking" of metal relay contacts and extending the life of Shelly devices.

• Eliminate Accidental Resets: Voltage spikes can generate electromagnetic interference that can cause smart modules to reboot (reboot) or disrupt the Wi-Fi signal. The Snubber filters these disturbances, providing a stable and error-free connection.

• Optimum LED Lighting Results: In certain configurations, LED bulbs may remain slightly on (ghosting effect) or flicker after switching off. Installing this accessory helps discharge the residual current, solving these aesthetic problems for good.

• Universal Compatibility: Although optimised for Shelly modules, this RC circuit can be used with any type of relay, smart switch or radio receiver that operates at 230V AC and controls demanding loads.

• Small Size: The compact design allows for easy installation in branch sockets, behind switches or directly into the controlled consumer enclosure.

When is it necessary to use the Shelly RC Snubber?

It is recommended to install this accessory in parallel with inductive loads that generate electrical noise, such as:

1. Electric motors: bathroom fans, hoods, electric blinds, automatic gates.

2. Air conditioning systems: recirculation pumps, compressors or fan coils.

3. Lighting: ferromagnetic transformers for neon or low quality LED bulbs.

4. Electrovalves: irrigation systems or gas and water valves.

Technical Specifications

• Components: RC circuit (Resistor + Capacitor)

• Working Voltage: 230V AC (±10%)

• Capacitance: 0.1µF

• Resistance: 100 Ohm

• Installation: Mounted in parallel with the load (between Phase and Null, at the consumer terminals).

• Circuit type: Protection filter against electrical parasites.

Package Contents: 1 x Shelly RC Snubber.

Why is so special Shelly RC Snubber?

It's a minimal investment that protects major investments. Without this accessory, inductive loads can destroy a smart relay in a few months of heavy use. The Shelly RC Snubber ensures that your system operates quietly, securely and without interference, being the hardware "insurance" your smart electrical panel needs.