Abb Mccb Switchgear

High Limitation With the new Tmax T4 and T5, high limitation of both the specific let-through energy and the short-circuit peak current is obtained, thereby truly making it possible to size the installation in the best possible way and obtain better cable, busbar duct and relative
Support protection, as well as that of all the coordinated apparatus on the load side. High values are also obtained for back-up, particularly useful for sizing the final parts of the installation.

MOTOR PROTECTION, FREEDOM OF CHOICE.

With Tmax T4 and T5, the best solution for motor protection up to 250 kW at 400 V AC can be selected. Alongside the traditional solution, which uses a circuitbreaker with magnetic only release,
Contactor and external thermal relay, you can now find an integrated solution, with the circuit-breaker fitted with the new PR222MP protection release and a
Contactor. The PR222MP release is fitted with all the protection functions, among which are protection U against phase unbalance and protection R against rotor block.

Freedom of choice is not only provided by the protection release. Freedom of choice is also yours thanks to the high limitation of Tmax T4 and T5, which allows optimalsizing of the coordinated apparatus on the load side (contactor and thermal relay when present) as well as the power supply cables. TMAX T4 AND T5.