Serving as a robust solution for commercial applications, the ABB JL360200A is a 3-pole, 200A J-Frame molded case circuit breaker. It provides dependable overcurrent protection for heavy-duty electrical systems. This unit mount breaker installs seamlessly into Thomas & Betts panelboards. It includes line and load lugs and serves as an effective substitute for the JDC3200. Equipped with a thermal-magnetic trip unit, it boasts a 100 kAIC rating at 480VAC and is HACR rated for HVAC loads.
HACR Rated, High Interrupting Capacity, Interchangeable Trip Unit, Reverse Feed
Product FAQs
6 answers
Is the Thomas & Betts JL series still actively manufactured?
Thomas & Betts was acquired by ABB, meaning legacy T&B molded case circuit breakers like the JL360200A are now managed under the ABB brand. It serves as an exact replacement for existing T&B J-Frame applications.
What does the LI trip function indicate on the JL360200A?
The LI designation means this thermal-magnetic breaker provides Long-Time (L) and Instantaneous (I) overcurrent protection. On this specific J-Frame model, the thermal protection is fixed, while the magnetic trip threshold is adjustable to coordinate with your system's inrush currents.
Can I install the JL360200A in a standard GE or Square D panelboard?
No. Although ABB now owns the Thomas & Betts brand, this specific unit-mount breaker is designed exclusively for use in compatible Thomas & Betts panelboards. It is not mechanically interchangeable with GE, Square D, or other manufacturers' J-frame panelboards.
What is the maximum wire size the standard lugs on this breaker will accept?
The factory-installed lugs on the JL360200A are designed to accept conductors up to 350 kcmil. If your installation requires 400 kcmil or 500 kcmil wire, you cannot use the standard lugs and must step down the wire size or source compatible oversized lug kits.
Is this breaker suitable for direct current (DC) systems?
Yes, in addition to its AC ratings, the JL360200A is rated for DC applications up to 250VDC. When used in a DC circuit, it provides an interrupting capacity of 22kA.
Does this breaker provide ground fault protection?
No, the JL360200A features a standard thermal-magnetic trip unit (LI) that only provides protection against overloads and short circuits. It does not include integrated ground fault (G) or equipment protection (LSIG) functions.
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