Replace bolted pressure switches to modernize your 480-V distribution systems.
If your 480-V distribution systems still rely on bolted pressure switches and decades-old circuit breakers, you should be asking if continuing to depend on them puts your operations at unnecessary risk.
In a recent article in NETA World, Matthew Wallace of CBS Field Services and David Muir of AEAMC discussed the evolution from mechanical bolted pressure switches to modern microprocessor-based circuit breakers. Postponing modernization too long has consequences.
Bolted pressure switches are entirely mechanical devices that sense overcurrent through the magnetic fields it creates. But mechanical components wear. Contact surfaces degrade. Calibration drifts. Aging equipment can cause nuisance trips, calibration drift, and mechanical failures, which cause unplanned downtime and potential safety hazards.
AEAMC offers life extension services to retrofit new current-series circuit breakers and replace existing bolted pressure switches with minimal modifications. We partner with Circuit Breaker Sales service shops and CBS Field Services to manage all facets of the outage and the retrofit process. Contact us to start planning for modernization.