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          Power distribution

          Shed non-priority loads Automatically


          Main drivers

          I want to optimise my energy usage. I can shed non-critical loads to make sure I stay within my utility tariff, but I can’t afford sudden power cuts.

          Solution in brief

          Design your electrical system around Compact NSX circuit breakers

          Compact NSX circuit breakers allow you to manage reflex load shedding: the automatic shedding of specific loads.


          The Compact NSX circuit breaker with integrated Micrologic 5.2 E electronic trip unit sends the reflex load shedding command. The trip unit measures I, V, P and E, and produces the appropriate alarms. Each alarm is associated with a load shedding trigger setting and a deactivation setting, each with time delay. The reflex load shedding order is sent via the Compact NSX circuit breaker’s SDx output module.

            PT: Pick-up threshold
          PD: Pick-up time delay
          DT: Drop-out threshold
          DD: Drop-out time delay
          Alarm: activation zone (in blue)
          Each alarm is associated with a load-shedding trigger setting and a deactivation setting.

          Benefits for end users

          > Save up to 10% off your energy bills
          Subscribe to a more cost-effective utility contract and avoid costly utility rate-block overrun penalties

          > Get the most out of your investment and enjoy greater reliability with the Compact NSX circuit breaker, integrating both protection and measurement capabilities

          > Increase power availability by preventing overload tripping
          Each alarm is associated with a load-shedding trigger setting and a deactivation setting.

          Benefits for professionals

          • Easy design and use
          • Limited part numbers for easy selection and ordering
          • No need for a current transformer
          • Easy installation and maintenance
          • A single reference for the SDx output module
          • Easy configuration via user-friendly RSU* software, your PC and a maintenance module—available on order as part of the maintenance kit
          • Easy testing using the LSU* software, your PC, and the maintenance module

          Solution architecture


          To know more

          To know more 

          Additional support

          Contact Schneider Electric
          For additional help or to contact us, visit customer services

          Main products