Engineered for heavy-duty environments, the Schneider Electric JLA36150 is a 150A, 3-pole MCCB from the PowerPacT J-Frame family. It features a thermal-magnetic trip unit with fixed long-time and adjustable instantaneous (LI) protection. Designed for Square D I-Line panelboards, this breaker utilizes an I-Line plug-on connection on the line side and mechanical load lugs. Rated for 100kAIC at 480VAC, it provides robust current-limiting performance and includes a Visi-Trip indicator.
Current Limiting, HACR Rated, Visual Trip Indicator, 80% Rated
Product FAQs
7 answers
What type of panelboard is this breaker designed for?
This breaker features an I-Line style plug-in connection and is exclusively designed for use in Square D I-Line panelboards and switchboards. It will not fit standard QO or NQ panels.
What does the L in the JLA36150 catalog number indicate?
The L designates the interrupting rating. It indicates a very high interrupting capacity, specifically 125kA at 240VAC, 100kA at 480VAC, and 50kA at 600VAC.
How do you connect the line and load sides of this breaker?
The line side features a plug-on I-Line connection that mounts directly to the panelboard bus. The load side uses standard mechanical lugs, typically the AL175JD kit, which accept 4 AWG to 4/0 AWG aluminum or copper wire.
Can the JLA36150 replace a JDA36150 or JGA36150?
Yes. Because they share the same physical J-Frame dimensions and I-Line mounting, the JLA36150 can replace a JDA36150 or JGA36150 breaker. The JLA simply offers a higher interrupting capacity.
Is the trip unit on this breaker adjustable?
Yes, it features a thermal magnetic trip unit with a fixed thermal element for long-time protection and an adjustable magnetic element for instantaneous short-circuit protection.
Are I-Line breakers suitable for reverse feeding?
No. PowerPacT J-Frame breakers with I-Line connections are labeled with specific line and load markings and are not suitable for reverse connections.
Does this breaker provide current-limiting protection?
Yes, the L-interrupting tier of the PowerPacT J-Frame series is UL Listed and CSA Certified as a current-limiting circuit breaker, which helps reduce peak fault currents during a short circuit.
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