TemPower2 is the world’s first “Double Break” ACB, having two breaking contacts per phase. The unique pole structure means that the short time withstand rating (Icw, 1sec) is equal to the service short-circuit breaking capacity (Ics) for all models. Full selectivity is guaranteed up to the full system fault level. TemPower2 ACBs have the world’s smallest depth resulting in space saving in switchboards. More than twenty design patents have been registered for the TemPower2 ACB.

Terasaki’s core business belief is commitment to our customers and the progressive innovation of the TemPower2 AR ACB. With this in mind we are introducing our new AR440SB (Compact) 4000A ACB and new AR6 - 5000A and 6300A ACB. With the introduction of these new ACBs there will be a solution from 800A to 6300A all with the same front cover dimension and standardized accessories throughout the range.

Maximum power from minimum volume was central to the design specification. With a depth of 290mm for the fixed type and 345mm for draw-out, it is one of the smallest ACBs in the world.

ACBs with front connections are available off-the-shelf. Front connections are especially suitable for smaller-depth switchboards.