Master Switch 3-Phase guarantees you a source of redundant power, providing additional resilience and protection against the failure of a single power source. Available in 8 power ratings (100-150-200-250-300-400-600-800 A) and as a 3 or 4-pole installation.
This static transfer switch easily enables seamless automatic or manual transfer to alternative, independent power sources. Also protects against load faults including overloads.
Protection Against Power Supply Faults
If one of the two input power sources falls outside tolerance levels, Master Switch automatically transfers to the secondary supply. This switching is instantaneous if the sources are in-phase, but even if they are non-synchronous the transfer time is less than 10 msecs.
Switching is also possible manually via the front panel or even remotely.
Protection Against Overloads And Load Faults
In the event of an overload, you can set the level of intervention where the MTS’s internal protection devices will block the power supply.
And in extreme cases such as a downstream short circuit, Master Switch automatically disconnects the affected load to protect the operation of other loads.
Fully-independent, separate circuits supply the MTS’s internal logic. These are hot-swappable meaning you can replace them, if required, without causing an interruption to the load. Power Supply Backup functionality ensures auxiliary power from an external source if both supplies fail.
Also incorporates “fan redundancy plus”, a dual redundant ventilation system that can dissipate heat even if 2 fans fail at the same time.