ABB Tmax XT
ABB Tmax XT moulded case circuit breakers guarantee an extremely high performance level while being progressively smaller in size, simple to install and able to provide increasingly better safety. Range is complete with four frame sizes: XT1, XT2 up to 160A and XT3, XT4 up to 250A. XTraordinary limiting characteristics allow savings in copper and footprint in switchboard, high selectivity values and very compact motor protection solutions. A dedicated range of accessories and a renewed solution for electronic trip units to adapt Tmax XT to different applications scenarios. Specific electronic trip units for energy metering, motor protection and generator protection in addition to a Modbus communication module for integration in a supervision system. Wide range of keylocks and padlocking options, plug in and withdrawable versions to speed up maintenance operations and improved diagnostic to have ready to use information about breakers’ status.
ABB Tmax XT1 is the smallest circuit breaker of the family, available in 3 and 4 poles version. Despite the reduced dimensions, Tmax XT1 reaches a breaking capacity value of 65kA at 480V. ABB Tmax XT2 is the high performing circuit breaker for applications up to 125A, available in 3 and 4 poles version with electronic and thermalmagnetic trip units. Five different breaking capacities are offered to customer, up to a maximum value of 150kA at 480V. ABB Tmax XT3 is the standard circuit breaker for applications up to 225A, available in 3 and 4 poles version. Two different levels of breaking capacities are available up to the maximum value of 35kA at 480V. ABB Tmax XT4 is the powerful circuit breaker for applications up to 250A. It is offered in five levels of breaking capacity, up to a maximum value of 150kA at 480V. Tmax XT4 can be fitted with thermalmagnetic and electronic trip units, even with energy metering. According to the different performance levels, 2, 3 and 4 poles versions are available. Most of the accessories is common throughout the range and they are all field installable. Tmax XT breakers tested and certified in accordance to UL 489 and CSA C22.2 carry IEC marking as well, so they are the perfect solution for those OEMs looking for a product that is globally recognized and accepted.