Macromatic's Intrinsically Safe Barrier Relays provide a safe and reliable method to control loads (motor starters, relays, etc.) with input devices (switches, sensors, etc.) located in a hazardous area. These products are approved for use in these Hazardous Locations:
Class I, Div 1 (Zones 0 and 1 Canada), Groups A, B, C, D
Class II, Div 1 (Zones 20 and 21 Canada), Group E, F, G
Class III, Div 1
Intrinsic safety is based on the principle of preventing low-voltage circuits in hazardous areas from releasing enough energy to ignite potentially explosive atmospheres. In normal operation and in the event of a fault, the Intrinsically Safe Barrier protects the field circuit by preventing excess voltage and current from reaching the hazardous area.
