The Smart Choice
02 9602 8331

MBSW

The MBSW is a manual maintenance bypass switch designed to isolate AC input and output to allow for routine UPS maintenance without load interruption. The purpose of the MBSW is to ‘bypass’ the UPS and supply mains power to critical load/s; once the maintenance is complete, the load/s are transferred back to the UPS and return to normal operation. Only AC input and output are isolated in this switch; the DC supply from batteries is not isolates as the batteries have an independent circuit breaker.
 
The make before break design guarantees no interruption to the load/s since the switch is fitted with an electro-mechanical mechanism between itself and the UPS to prevent incorrect or accidental operation. The shaft in the contact is locked by a solenoid which is electrically coupled with the UPS ‘load on bypass’ relay meaning the switch cannot be operated unless the load is manually transferred to bypass mode on the UPS front panel first.

Product Technical Description

 

 
  • Continuous power to equipment
  • Eliminates operation downtime
  • Make before break transfer topology
  • Electro-mechanical switch to ensure safe operation
  • Available in single and three phase models
  • Independend circuit breaker for batteries
  • AC input and output isolation
 
 
 
 

For more information and product specifications, please refer to the relevant document link, or contact us on 02 9602 8331.