Engineered for heavy commercial and industrial applications, this 1200A SACE Tmax XT7 molded case circuit breaker delivers reliable microprocessor-based protection. It installs into ABB ReliaGear neXT power panels, ReliaGear SB switchboards, and standard XT7 enclosures, serving as a modern replacement for legacy T7S 1200 units. The integrated Ekip Dip LS/I trip unit provides adjustable long-time, short-time, and instantaneous settings to ensure precise coordination across complex networks.
What enclosures and panels are compatible with the XT7SU312EEFF000XXX?
This breaker is designed for use with ABB SACE Tmax XT7 enclosures, switchboards, ReliaGear neXT power panels, and ReliaGear SB switchboards.
Can this XT7 breaker replace older legacy models?
Yes, the Tmax XT7 series serves as a modern replacement for legacy T7S 1200 units in compatible ABB and GE distribution equipment.
Is the XT7SU312EEFF000XXX rated for 80% or 100% continuous current?
This breaker is standard 80% rated for continuous current applications under UL guidelines.
What type of trip unit is installed in the XT7SU312EEFF000XXX?
It comes equipped with an Ekip Dip LS/I electronic trip unit, which provides adjustable Long-Time, Short-Time, and Instantaneous protection settings.
How does this breaker mount into a panel?
The XT7SU312EEFF000XXX is a fixed mount, bolt-on circuit breaker that connects using standard front terminal lugs.
Can this breaker be reverse fed?
Yes, Tmax XT7 circuit breakers have reverse feed capabilities. Power can be supplied from the bottom terminals up to the maximum voltage rating.
What is the operating temperature range for this Tmax XT7 breaker?
It is designed to operate in ambient air temperatures ranging from -25 degrees Celsius to +70 degrees Celsius.
What does the EE in the XT7SU312EEFF000XXX catalog number signify?
The EE in the part number designates that the breaker is equipped with the solid-state Ekip Dip LS/I electronic trip unit.
What is the difference between the XT7 and XT7M frames?
The standard XT7 uses a traditional toggle operating mechanism, while the XT7M features an integrated stored energy mechanism that allows for easier operation and optional spring charging motors.
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