General Electric THJK426F000 2 Pole Circuit Breaker
The General Electric THJK426F000 is a 2 Pole thermal magnetic molded case circuit breaker with a current rating of 400 Amps and a voltage rating of 600V. It has an interrupting rating of 35kAIC at 480V. The THJK426F000 has a bolt-on connection type and includes long time and instantaneous trip functions.
Is the General Electric THJK426F000 interchangeable with ABB branded breakers?
Yes. Following ABB's acquisition of GE Industrial Solutions, this J600 line circuit breaker may be branded as either GE or ABB. They are identical in form, fit, and function, and are fully interchangeable.
Does the THJK426F000 come with line and load lugs?
This model is typically supplied as a basic breaker without lugs. For standard 400A applications, the GE TCAL43 lug kit is commonly used to terminate copper or aluminum conductors. Lugs must be sourced separately.
What frame size is the THJK426F000 built on?
It is built on the GE J600 frame, commonly referred to as the TJK or J-Frame. This frame size supports a maximum continuous current of up to 600 amps.
Where is this J-Frame circuit breaker typically installed?
This bolt-on molded case circuit breaker is designed for use in GE motor control centers, switchboards, and J600 series enclosures for commercial and industrial power distribution.
Can the THJK426F000 be used in DC power systems?
Yes, GE J600 line thermal magnetic breakers in the THJK series are typically rated for up to 250V DC, in addition to their standard 600V AC rating.
What type of fault protection does the THJK426F000 provide?
It features a thermal magnetic trip unit that provides both long time protection against overloads and instantaneous protection against short circuits.
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