See Product Details

ABB is pleased to announce the extension of the Tmax Molded Case Circuit Breaker family to include the T7M and T8 molded case circuit breakers.

The UL489, T7M and T8 offer reliable circuit protection with ratings from 1000A to 3000A in a smaller more cost efficient MCCB package.

The new AC current T7M (stored energy operator) and T8 circuit breakers can be equipped with trip units using electronic technology. Electronic trip units provide protection with high tripping precision, reliability, and insensitivity to temperature and electromagnetic interference. The PR231/P (T7), PR232/P and the PR331/P trip units allow setting the trip parameters directly on the front of the breaker with dip switches. The PR332/P trip unit allows access to information and programming using a keyboard and a large graphic display. The PR332/P trip unit offers many advance protection features, including an integrated ammeter, and data logger: 64 events and values are recorded for later analysis. These additional functions can be further enhanced with communication (Modbus and Bluetooth), signaling and measurement modules.

T7M 1000A-1200A, 600VAC (Stored Energy)

• For applications requiring electrically operated breakers, or the benefits of a stored energy mechanism
• Interrupting ratings up to 100 kA @ 480V and 65 kA @ 600V
• Standard & 100% ratings of 1000A or 1200A
• Fixed or drawout mounting designs
• Adjustable Electronic trip units available with enhanced protection features:
• Data logger - 64 event tracking memory
• Measurement module - measures phase and neutral voltages
• Modbus RTU and Bluetooth communication modules
• meter measures current on the phases and neutral
• Complete range of UL field installable accessories, including spring charging motors
• Replaces ABB Isomax S7 for electrically operated breakers

T8 1600A-3000A, 600VAC (Stored Energy)

• Features of a power circuit breaker in a smaller molded case breaker
• Interrupting ratings up to 125 kA @ 480V and 100 kA @ 600V
• Standard & 100% ratings of 1600A, 2000A, 2500A & 3000A
• Adjustable Electronic trip units available with enhanced protection features:
• Data logger 64 event tracking memory
• Measurement module - measures phase and neutral voltages
• Modbus RTU and Bluetooth communication modules
• Ammeter measures current on the phases and neutral
• Complete range of UL field installable accessories- including spring charging motors
• Replaces ABB Isomax S8

The ABB Tmax family now offers a complete line of molded case circuit breakers ranging from 15A – 3000A. ABB world class reliability supported with a wide range of UL field installable electrical and mechanical accessories. This means Tmax offers the best performance to size ratio on the market.

ABB's world class network of sales and service locations provide local availability with global product support. Specify ABB circuit breakers with confidence because of their well documented history of superior designs, reliable operation and Global support.

Find your local USA sales office:

Customer service for USA:

MCCB Web site: http://www.abb.us/lvbreakers