Blue Point Design D www.BPEsolutions.com Engineering Pointing the Way to Solutions! R-C Snubber Noise and Arc Suppressor The R-C Snubber is intended to suppress the “inductive kick back” from motors, solenoids, relay coils, pumps or any device that creates an electro-magnetic collapsing field. High energy noise spikes are generated whenever current is interrupted through an inductive load connected to a switching circuit. These electro-magnetic noise spikes (EMI) may interfere with electronics equipment causing erratic operation, CPU failure and may also accelerate relay contact wear. Applied across an inductive load, the R-C snubber suppresses the electrical noise spikes to electronics and extends contact life on mechanical relays. B A RC Snubber Network A B Red Lion Part No= SNUB0000 RC Snubber Network Part RC Snubber Network Part Resistor Capacitor Relay Contacts EMI - EMF A/B B/A Inductive Load (NO) Relay, Solenoid Motor, Pump, Supply Voltage Switch AC RELAY -or- DC A/B B/A R-C snubber applied with the suppressor directly across the inductive load contacts EMI= Electro-Magnetic interference EMF= Electro-Magnetic Field Blue Point Engineering www.BPEsolutions.com Phone (303) 651-3794 Relay, Solenoid Motor, Pump, Blue Point Design D www.BPEsolutions.com Engineering Pointing the Way to Solutions! R-C Snubber Noise and Arc Suppressor APPLICATION The inductive load suppressors are effective in both AC and DC Power circuits Preferred Application Method R-C snubber should be applied with the inductive load suppressor directly across the inductive load contacts for best results if possible. Relay, Microprocessor, Switch * Control Contact Supply Power EMI - EMF INDUCTIVE R-C SNUBBER AC or DC Voltage Load (250V MAX) Component Motor, Solenoid, Relay, Pump, Coil AC VDC + - Alternate Application Method Placing the R-C snubber with the inductive load suppressor across the control contacts will also work (* Use a snubber across all contacts in the load circuit) Relay, Microprocessor, Switch * Control Contact EMI - EMF INDUCTIVE Load Supply Power R-C SNUBBER AC or DC Voltage Component Motor, Solenoid, (250V MAX) Relay, Pump, Coil AC VDC + - EMI= Electro-Magnetic interference EMF= Electro-Magnetic Field Blue Point Engineering www.BPEsolutions.com Phone (303) 651-3794 Relay, Solenoid Motor, Pump, Blue Point Design D www.BPEsolutions.com Engineering Pointing the Way to Solutions! R-C Snubber Noise and Arc Suppressor APPLICATION MOTOR INDUCTIVE Load Supply Power AC or DC Voltage (250V MAX) AC VDC + - Rotation R-C SNUBBER Component As Close to Motor as Possible (+) Supply Power AC or DC Voltage (-) (250V MAX) R-C SNUBBER VDC + - Component AC R-C SNUBBER Component Large Relay Small (-) Relay Relay N.O. Control COM Coil Side COM N.C. X N.C. Microprocessor N.O. Relay or (+) Switch Side Switch Relay Controller Coil Side R-C SNUBBER INDUCTIVE Components Load EMI= Electro-Magnetic interference EMF= Electro-Magnetic Field Blue Point Engineering www.BPEsolutions.com Phone (303) 651-3794 Relay, Solenoid Motor, Pump, Blue Point Design D www.BPEsolutions.com Engineering Pointing the Way to Solutions! R-C Snubber Noise and Arc Suppressor APPLICATION Pneumatic Valve Supply Power + AC or DC Voltage (250V MAX) - R-C SNUBBER Component AC VDC + - - + Air 5/2 Switching INDUCTIVE Supply Solenoid Air Valve Load Air Hose Air Hose Air Hose Pneumatic Cylinder (Double Acting) EMI= Electro-Magnetic interference EMF= Electro-Magnetic Field Blue Point Engineering www.BPEsolutions.com Phone (303) 651-3794 Relay, Solenoid Motor, Pump, Blue Point Design D www.BPEsolutions.com Engineering Pointing the Way to Solutions! R-C Snubber Noise and Arc Suppressor APPLICATION R-C SNUBBER INDUCTIVE Component Load Relay A (-) N.O. Microprocessor - COM Controller + N.C. Relay B (+) Switch Side Relay Coil Side B A A B RC Snubber Network EMI= Electro-Magnetic interference EMF= Electro-Magnetic Field Blue Point Engineering www.BPEsolutions.com Phone (303) 651-3794.