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A RC Snubber is a device that is used to limit (or “snub”) voltage transients in electrical systems, it comprises a resistor (R) and a capacitor (C) connected in series.
To be used for Shelly Plus 1 / 1PM and Shelly 2PM (sold separately) which are restarted when switching on induction loads such as fans, motors, rollers, or those that cause voltage spikes during switching on and effectively mitigating it by providing a short-term alternative current path around the switching device, so that the inductive load is safely discharged.
The RC Snubber can protect sensitive components of your Shelly device from voltage spikes and improve the overall performance and reliability of the connected circuits.
RC snubber should be wired between Output and Neutral of the circuit. You should connect RC Snubbers in parallel to inductive loads which you intend to switch with Shelly devices. Connect the RC Snubber as close to the inductive load as possible.
Main applications:
The RC Snubber finds common applications with inductive loads, such as:
Shelly Products can be controlled locally, directly and without a hub through your smartphone/table with Shelly App - no hub or other equipment needed. Enable cloud feature and get remote control from anywhere. At the same time, you can integrate Shelly directly with virtually every smart home hub, voice assistant, open source platform, or premium control system.
No hub required, Universally compatible
Shelly Products can be controlled locally, directly and without a hub through your smartphone/table with Shelly App - no hub or other equipment needed. Enable cloud feature and get remote control from anywhere. At the same time, you can integrate Shelly directly with virtually every smart home hub, voice assistant, open source platform, or premium control system.
RC Snubber Specifications
POWER
Power supply AC
230V ±10%, 50Hz
Power supply DC
No
FEATURES
Compatible with
Shelly 1, Shelly 1PM, Shelly 2.5
DIMENSIONS
Size
27 mm x 17 mm x 8 mm
Collapsible content
Warranty
USA Pro Market Manufacturer Warranty: Lifetime manufacturer warranty (only if installed by a professional within USA) when purchased at Digital Bay Tech.
Retail Standard Manufacturer Warranty (included in purchase price): 2, 3 or 5 years manufacturer warranty covers only the hardware (corpus, mechanics, and display, if any) and does not cover consumables (battery) and accessories insofar as these are subject to exhaustion (decrease of their useful life) depending on the intensity of their use. Device malfunctions are only covered when device is used as described conditions within user manual (max loads, proper installation, etc.). Please check refund policy for further details.
Gen 1: 2 years.
Plus, Gen 3: 3 years.
Pro Line: 5 years.
Special Notes
Do It Yourself: Devices are technically user-installable in many locales, nevertheless consulting a licensed electrician to install shelly components is recommended; in addition to being licensed to work with electrical devices, they are also familiar with local building codes and regulations to keep your safety.
Manufacturer's Safety note: Each Shelly device generates heat under load. Do not combine two or more Shelly devices stacked on top of or beside each other in a confined space. There must be a minimum distance of 0.4 inch / 1 cm between them to allow for airflow.