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Introduction
CABB is once again demonstrating its commitment to new product
development and its superiority in product performance. Never
before has the industry seen such high performance, versatility
and standardization in a range of molded case circuit breakers.
The ABB Tmax has been developed to complement the
performance-proven Isomax line of circuit breakers. This new
breaker, with a range up to 600A, has several very big features
that go along with its very small size:
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Double insulation - this construction characteristic allows
for the UL Listed field installation of internal accessories
without exposure to the power poles. |
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Positive operation - all molded case breakers from ABB ensure
that the toggle indicates the precise position of the moving
contacts. This guarantees safe and reliable signaling by the
device. |
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Installation - Tmax Series can be installed in panels and
switchboards in either the horizontal or vertical planes while
being fed from either end without any derating of their
performance characteristics. |
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Two ranges of accessories - in the pursuit of standardization,
all Tmax internal and external accessories can be utilized
across the entire range from 15A to 600A. |
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Interrupt ratings at 480VAC up to 150kAIC. |
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Compact size |
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UL Listed and IEC rated for global application and acceptance. |
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The ABB Tmax
has the performance and accessories to satisfy all industry
requirements in the 600VAC to 600VDC ranges. A single pole molded
case version is available for the first time.
Frame sizes - five basic sizes
The ABB Tmax series includes five basic frame sizes as well as the
T1 single pole with the range rated from 15A to 600A at 480VAC.
The various versions carry the following interrupting capacities:
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B Basic breaking capacity |
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N Normal breaking capacity |
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S Standard breaking capacity |
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H High breaking capacity |
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L Limiting capacity |
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V Very high breaking capacity
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Derived versions
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T2, T4 & T5 circuit breakers with LS/I electronic trip units |
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Switch disconnectors in T1, T3, T4 and T5 frames |
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Circuit breakers for motor circuit protection
(MCPs) |
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Circuit breakers for direct current
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ABB Tmax versions
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Fixed: all models |
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Plug-in: T2, T3, T4 and T5 UL
L File #E93565 (breakers and MCPs) #E116596 (Accessories)
#E116595 (Molded case switches) |
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