Suitable for AC or DC 5-400V inductive load (load less than 1000W) to protect relay contacts or thyristors. RC absorption circuit absorbs the induced electromotive force of the inductive load. There is a varistor to prevent excessive voltage fluctuations and excessive currents from causing adhesion of relay contacts. Provide circuit anti-interference ability. Use crimping terminals to make wiring more convenient. Description: RC absorption circuit is also called RC Snubber circuit. It is a circuit structure in which resistors and capacitors are connected in series and connected in parallel with switching devices. It is used to improve the voltage and current waveforms of electronic power devices when they are turned on and off. The RC absorption circuit module can prevent the induced electromotive force generated at the moment of turning on and off of the inductive load from causing damage to the switching devices such as relays and thyristors, preventing electromagnetic interference and increasing the anti-interference ability of the microcontroller. Product Size: 30x13x12mm/1.18x0.51x0.47Inch Colour:As Shown Material:plastic+metal Package Contents: 10 * Relay Contact Protection AC/DC 5V-400V RC Protection Resistance Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.