GCD207B101 3BHE024642R0101 thyristor drive ABB

The Tmax series of molded-case circuit-breakers, compliant with the IEC 60947-2 Standard, offers a wide range of sizes and breaking capacities suitable for various applications in alternating current (AC) and direct current (DC) networks. Here are the key features and options available within the series:

GCD207B101 Basic Sizes and Breaking Capacities:

• Divided into seven basic sizes ranging from 20 A to 1600 A.
• Breaking capacities from 36 kA to 200 kA at 380/415 V AC.

GCD207B101 Protection for AC Networks:

• T4 Circuit-Breakers: Equipped with TMD thermomagnetic trip units with adjustable thermal threshold (I1 = 0.7…1 x In) and fixed magnetic threshold (I3 = 10 x In).
• T5 Circuit-Breakers: Fitted with TMG trip units for long cables and generator protection, offering adjustable thermal threshold (I1 = 0.7…1 x In) and adjustable magnetic threshold (I3 = 2.5…5 x In).
• T4, T5, and T6 Circuit-Breakers: Equipped with TMA thermomagnetic trip units featuring adjustable thermal threshold (I1 = 0.7…1 x In) and adjustable magnetic threshold (I3 = 5…10 x In).
• T4, T5, and T6 Circuit-Breakers: Also available with electronic trip units such as PR221DS, PR222DS/P, PR222DS/PD, and PR223DS.
• T7 Circuit-Breaker: Completes the Tmax family up to 1600 A, equipped with PR231/P, PR232/P, PR331/P, and PR332/P electronic trip units.

GCD207B101 Application Range:

• Suitable for AC applications ranging from 20 A to 1600 A with voltages up to 690 V.
• Tmax T4, T5, and T6 circuit-breakers with TMF, TMD, and TMA trip units can be used in DC plants from 20 A to 800 A with a minimum operating voltage of 24 V DC.

General Characteristics:

• Three-pole T4 circuit-breaker can be fitted with MF and MA adjustable magnetic-only trip units, suitable for both AC and DC applications, particularly for motor protection.
• Interchangeability: Tmax T4, T5, and T6 circuit-breakers can be equipped with various thermomagnetic and electronic trip units, offering flexibility and adaptability to different requirements.

Interchangeability:

• Tmax T7 circuit-breaker can also accommodate the latest generation electronic trip units, providing versatility and ease of customization.

GCD207B101 Note:

• For motorization, the T7 circuit-breaker with a stored energy operating mechanism must be ordered separately, complete with necessary components for automatic spring charging, opening coil, and closing coil.

The Tmax series offers a versatile and adaptable solution for circuit protection needs, with options for both AC and DC applications and the flexibility to change trip units according to specific requirements.