RC Contact Suppressor

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0333 400 9500

Quoting product code: RG22Y

£2.99

About this product

Overview

  • The RC network will suppress arcing and also reduce dv/dt
  • RFI can be reduced over a wide frequency range
  • Capacitor and resistor are connected in series

Product overview

• The RC network will suppress arcing and also reduce dv/dt
• RFI can be reduced over a wide frequency range
• Capacitor and resistor are connected in series
• Metallised Polyester
• 250V AC rated
• UK manufactured

Sudden interruption of current in an inductive circuit normally produces a high voltage surge. Damage to contacts occurs due to arcing. In thyristor or Triac Circuits incorrect functioning may result due to high dv/dt. The LCR RC network will suppress arcing and also reduce dv/dt. The RC network also suppresses radio interference over a wide frequency range.

Rated 5 out of 5 by from Solved my problem with LED lights I changed my living room light fitting entirely to LED replacement bulbs and then found that they continued to glow gently after being turned off. Apparently there is some small induced current in the wiring, which is capable of slightly illuminating the LEDs. This contact suppressor did the job perfectly - it bleeds off the tiny residual current and stops the LEDs lighting when switched off.
Date published: 2014-12-30
Rated 5 out of 5 by from Very Useful Component Problem: Marshall amplifiers have a habit of sending a huge 'pop' to the loudspeakers when they are turned off. Solution: solder one of these components across the input of the power transformer to suppress the inductive spike as the mains switch contacts open. Works beautifully. Can't think why Marshall would not fit one as original equipment. Have now bought another 4 to fix more amplifiers.
Date published: 2017-08-11
Rated 5 out of 5 by from LED GU10 won't go off! Had a couple of errant new GU10 LED lights (2 new and 3 older models), that would flicker when switched off, as a result of an small, but persistent inductive current in a 2way/3way lighting system. Once fitted all was less like a strobe in a disco! Happy.
Date published: 2017-08-23
Rated 4 out of 5 by from Solving sticky Contacts I had relay contacts sticking together due to sparking thus the equipment stayed on. This removed the spark thus contacts with clean break.
Date published: 2016-09-28
Rated 5 out of 5 by from Quality Electronics I have bought several critical items lately for a relay auto switch over. Good specifications make it easier.
Date published: 2017-10-11
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Specification

Specifications:
Capacitance 0.1µF
Resistor 100Ω
Maximum Voltage 250Vac (class x)
Power Rating 0.5 W
Terminations 0.8mm tinned copper wire
Dimensions 22 x 8 x 19mm (Lead spacings 22.5mm)

do i connect across switch i e across live in and live out

Asked by: lager
We cannot offer full advice on mains electrical installations, this job would be best left down To qualified Electricians, if you are at all unsure we would strongly recommend consulting a qualified electrician for help and support or to complete the job for you.
Answered by: Dominic
Date published: 2017-09-15

Is the suppressor connected across the switch contacts or between the switch contact and earth?

Asked by: Tommy10
The suppressor is connected to the switch contacts. https://maplindownloads.s3-eu-west-1.amazonaws.com/RG22Y-data-sheet-7744.pdf
Answered by: Billy
Date published: 2017-08-16

I have replaced two lamps for LED units but they continue to glow slightly even when switched off and having looked for solutions several people are recommending that fitting this unit will resolve the issue. Is this true? Where/how would it be installed?

Asked by: cap1
We cannot offer full advice on mains electrical installations, this job would be best left down To qualified Electricians, if you are at all unsure we would strongly recommend consulting a qualified electrician for help and support or to complete the job for you.
Answered by: Dominic
Date published: 2017-02-02

Will these fix the problem of LED lights flashing when connected to a PIR?

Asked by: Mitch
This service is for frequently asked questions and does not allow two way communication, In order for us to best assist you with your technical issue please contact us on the details below: 0333 400 9500 or email technical@maplin.co.uk
Answered by: Billy
Date published: 2016-11-07

is this what I need to stop LED light bulbs flashing when switched off?

Asked by: DeanH
As much as we would love to be able to help here, we cannot offer design project advice or assistance, we are more than happy to locate products and support you with your purchases but we are not able to design entire circuits or projects for you. If you do have the design/circuit information detailing the value of the components needed we will be happy to locate these for you.
Answered by: Dominic
Date published: 2016-10-18

will this item stop the flickering of an LED bulb, part of a two-way, two light circuit, when the circuit is off?

Asked by: djsmc
This service is for frequently asked questions and does not allow two way communication, In order for us to best assist you with your technical issue please contact us on the details below: 0333 400 9500 or email technical@maplin.co.uk
Answered by: Billy
Date published: 2016-10-17

what is the polarity of the RC contact suppressor- which lead goes to the capacitor and which to the resistor?

Asked by: Paul
Please see the below link for the items data sheet https://maplindownloads.s3-eu-west-1.amazonaws.com/RG22Y-data-sheet-7744.pdf
Answered by: Billy
Date published: 2016-05-26

Does this just connect between love and switch live in the light fitting or switch?  A qualified electrician will be installing but just want him to get it right Thanks

Asked by: Terry
This would normally be used on the live line yes, but we are not electricians so would not be able to advise where to use this on a mains electrical system.
Answered by: Russell
Date published: 2015-10-21
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