Low Voltage Switchgear Upgrade Options


Low Voltage Switchgear Upgrade Options
Facility managers are often faced with the choice of maintaining aging (or obsolete) equipment or replacing it with a new switchgear line-up to take advantage of current technology. Schneider Electric offers two additional options for low-voltage applications utilizing Masterpact™ circuit breakers that are cost-effective and will expand the capabilities of your electrical system with minimal downtime. These state-of-the-art circuit breakers provide solid state protection, reduce the potential for an arc flash event and do not require maintenance under normal operating conditions. Designs are available for most manufacturers’ low-voltage switchboards and switchgear.

Features and benefits of a Masterpact upgrade solution include:

  • Reduced costs and less downtime for equipment upgrades compared to new switchgear installation
  • Cost-effective electrical system upgrade
  • Maintains electrical system integrity during upgrade
  • Eliminates the need for obsolete or unavailable spare parts
  • Features a one-year equipment warranty

Direct Replacement Solution
A standard Masterpact cradle is installed into an adapter cradle to form one assembly, which is then installed into the switchgear cubicle. This cradle-in-cradle assembly locks into place and remains in the switchgear cell after the initial installation. The new Masterpact circuit breaker racks in and out of the adapter cradle. A new door is installed, however cell interlocks, the racking mechanism and the switchgear structure are not modified.

Retrofill Solution
This cost-effective solution provides a Masterpact cradle and circuit breaker, along with a new racking mechanism and primary and secondary connections in each switchgear cell. Existing cells are modified to accept the new cradle and circuit breaker, including a custom-engineered connection between the cradle and the switchgear line and load side bus.

Both upgrade options have the same end result: improved power system reliability and lower life-cycle costs.