Chapter 1. setting up – IAI America S-SEL-E User Manual
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• The most effective method is to install a surge absorber and surge killer in parallel to the reactance load (solenoid
and relay coils). This will reduce noise in a wide band of frequencies.
(2) Noise Source and Noise Suppression
When using electrical components such as electromagnets, solenoids, or relays which create electromagnetic noise,
some type of noise supression device should be used.
AC solenoid valve · magnetic switch · relay
• Install a surge absorber parallel to the reactance load (solenoid and relay coils).
*Note*
Use the shortest possible wiring between the surge absorber
and the noise-creating device. Use of excessively long wir-
ing will decrease the performance of the surge absorber.
Surge Absorber (Metal Oxide Varistor or Transzorb).
Surge Killer (Resistor Capacitor Snubber)
Chapter 1. Setting Up