Molded Case Circuit Breakers

Tmax - Up to 600 A at 600 V

The ABB Tmax has the performance and accessories to satisfy all industry requirements in the 600VAC to 600VDC ranges. The Tmax has several very big features that go along with its very small size:

• Double insulation - this construction characteristic allows for the UL Listed and CSA approved field installation of internal accessories without exposure to the power poles.
• Positive operation - The toggle indicates the position of the moving contacts. This guarantees safe and reliable indication of the device status.
• Installation - Tmax Series can be installed in panels and switchboards in either the horizontal or vertical planes.
• Two ranges of accessories - all Tmax internal and external accessories can be utilized across the entire range from 15A to 600A.
• Interrupt ratings at 480VAC up to 150kAIC.
• Reverse Feed
• UL Listed and CSA approved and IEC rated for global application and acceptance.
• Frame sizes - five basic sizes The ABB Tmax series includes five basic frame sizes. Each frame has multiple interrupting versions.
  Tmax versions
• Fixed: all models
• Plug-in: T2, T3, T4 and T5 UL
• UL File #E93565 (breakers and MCPs)#E116596 (Accessories)#E116595 (Molded case switches)

Isomax - Up to 2500 A

ABB offers the right solution for any application up to 2500 A thanks to Isomax S6, S7 and S8 circuit breakers, perfectly integrated with the Tmax family:

• MCCB: S6, S7 and S8 molded case circuit breakers for power distribution;
• MCP: S6, S7 and S8 circuit breakers with magnetic only trip unit for motor control protection;
• MCS: S6, S7 and S8 molded case switches for using as isolators or switching devices for lines, busbars or parts of plants.

MAXIMUM VERSATILITY
Isomax circuit breakers can be fitted with a wide range of terminals for every kind of connections. Modular design also makes installation and assembly extremely simple.
COMPLETE RANGE OF ACCESSORIES
Isomax circuit breakers are complemented by a complete range of accessories to satisfy the widely differing operational and automation requirements. Accessories are standardized for groups of circuit breakers to streamline storage logistics and simplify installation. Isomax circuit breakers can be customized as required under conditions of absolute safety. All the accessories can be mounted with simple operations without exposing the main contacts (except for the Isomax S8).