Breakers and Switches



The SACE FORMULA circuit-breakers from 15A to 630A consist of the interruption part together with the trip unit and they can be installed:

• directly on the back plate of the cubicles;

• on a DIN rail (A1 and A2);

• back door (A1, A2 and A3, 2-3 4 poles).

They are characterised by:

• fixed version;

• polarity: 1 pole (A1 and A2), 2 poles (A1 and A2), 3 poles (A1, A2 and A3), 4 poles (A1, A2 and A3);

• maximum breaking capacity of 36kA for A1 and A2 and of 50kA for A3 at 415V AC;

• fixed thermomagnetic trip unit (TMF) for protection of networks in alternating and direct current (A1, A2, A3);

• ELT LI electronic trip unit with fixed thresholds for the protection of networks in alternating current (A3);

• only two depths: 60mm (A1, A2) and 103.5mm (A3);

• standard front terminals;

• the possibility of use at 50°C without derating up to 250A (except for A1 125A);

• a special version for A3 300A-400A for use at 50°C.

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TMAX Family

Tmax family is now available as a complete range of moulded case circuit-breakers up to 1600 A. All the circuit-breakers, both three-pole and four-pole, are available in the fixed version; the sizes T2, T3, T4 and T5 in the plug-in version and T4, T5, T6 and T7 in the withdrawable one as well.

With the same frame size, the circuit-breakers in the Tmax family, are available with different breaking capacities and different rated uninterrupted currents.

The electric arc interruption system used on the Tmax circuit-breakers allows the short-circuit currents of very high value to be interrupted extremely rapidly. The considerable opening speed of the contacts, the dynamic blasting action carried out by the magnetic field and the structure of the arcing chamber contribute to extinguishing the arc in the shortest possible time, notably limiting the value of the specific let-through energy I2t and the current peak.

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SACE Emax 2 is a new series of low voltage air circuit-breakers available up to 6300 A and with the ability to efficiently and simply control electrical installations – from the traditional to the more complex – with minimum impact, the new SACE Emax 2 circuit-breakers represent the evolution of a circuit-breaker into a Power Manager.

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Automatic Transfer Switches

Fully automatic solution. Our ATS range includes sophisticated features in extremely compact footprint area without neglecting features that makes assembly easy and safe, every time.

ABB’s range of automatic transfer switches goes from 160 to 1600 Amperes. There are three types of ATSs with three different OMD control units: OMD200, OMD300 and OM800. ABB’s ATSs have the features and functionality that makes them suitable for diverse applications: industrial plants, docks, airports and data centers.

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