Thor DRM1050 Ripple Filter

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The DRM1050 is a filter designed to reduce or eliminate the effects of mains signalling that some power utilities generate. The low-level signal voltages or ripple control signals injected into the distribution network at various frequencies are used to control off-peak appliances. Mains signalling is also referred to as ripple control signals. The signals are commonly used to switch the metering for hot water and heating systems. Generally, the power utility will use a specifc frequency for a Suburb and a different frequency for a neighbouring Suburb.