METER DEVICES 110-54580 10-POLE MOLDED-BASE TEST SWITCH T268548

The Meter Devices 110-54580 (now manufactured under the Brooks Utility Products brand) is a 10-Pole Molded-Base Test Switch. These are specialized safety components used by electrical utilities and industrial high-voltage facilities to allow for the testing and calibration of revenue meters and protective relays without de-energizing the main circuit. These remain a "standard of the industry" for CT (Current Transformer) metering. They are built with high-conductivity copper and phosphor bronze to ensure zero signal degradation for billing accuracy.