Spark Quenchers

Spark Quenchers are electronic components designed to prevent or substantially minimize the occurrence of arcing and noise generation in relay and switch contacts. Spark Quenchers consist of specially designed capacitors and resistors connected in series. Spark discharges and induced noise are absorbed over a wide range by the accumulation characteristic and impedance of the capacitor, while the RC time constant delays and averages surge voltage and oscillations.

OKAYA Spark Quenchers have the following characteristics which make it possible to use in a wide range of applications:

  • The overload capacity is large.
  • Not polarized -- can be used in both AC and DC circuits.
  • Favorable effect on surge voltage and accompanying oscillations caused by contact chatter.
  • Effective against spurious potentials having magnitudes below circuit voltage.
  • Offer a high degree of protection for semiconductor devices, and as thyristors and SCRs.
  • Improve dv/dt ratio.
3CRE

3CRE

X2 -- 250VAC
Three phase delta connection

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3RMES

3RMES

X2 -- 250VAC
Three phase delta and thermal relay connection

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6CRE

6CRE

X2 -- 250VAC
Three phase three line connection

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AU and TA

AU and TA

X2 -- 250VAC
AC or DC applications

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CRE

CRE

X2 -- 250VAC
Single phase

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CRH and 3CRH

CRH and 3CRH

500VAC
High voltage phase control

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RE

RE

X2 -- 250 or 275VAC
AC or DC applications

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S and SB

S and SB

150VAC
Bare wire or PVC leads

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XA and XAB

XA and XAB

125 or 250VAC
PWB or flexible wire leads

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XE

XE

X2 -- 250VAC
Wide variety of options

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XEB

XEB

X2 -- 250VAC
Flexible wire leads

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Frequently Asked Questions

Frequently Asked Questions

Check out our list of frequently asked questions about spark quenchers.

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