Built for industrial power distribution, the Eaton JGH325033G is a 250A, 3-pole molded case circuit breaker from the Series G line. It delivers reliable protection for demanding electrical systems. This unit mount MCCB installs into Eaton Pow-R-Line panelboards, switchboards, and motor control centers. It includes line and load lugs (TA250FJ) and metric mounting hardware. Rated at 100 kAIC at 240V, it features a 310+ electronic trip unit with adjustable long-time and short-time (LS) settings.
Line and Load Lugs Included (TA250FJ), Metric Mounting Hardware
Standards
CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval
CE, CSA, IEC, KEMA, UL
Temp Rating
40C
Construction Features
HACR Rated, Current Limiting, High Interrupting Capacity, 80% Rated
Product FAQs
8 answers
What panelboards are compatible with the JGH325033G?
This JG-frame breaker is designed for installation in Eaton Pow-R-Line panelboards, switchboards, and motor control centers. It fits standard Series G panelboard chassis configurations.
Is the Eaton JGH325033G 100% rated for continuous current?
No, the JGH325033G is a standard 80% rated circuit breaker. For applications requiring a 100% continuous current rating, you must use the catalog number JGH325033GC.
What type of trip unit is installed in the JGH325033G?
It features a Digitrip 310+ electronic trip unit with LS (Long-Time and Short-Time) adjustability. This allows for precise coordination in your electrical distribution system compared to standard thermal-magnetic breakers.
What are the standard replacement lugs for the JGH325033G?
The standard line and load lugs for this 250A JG-frame breaker are catalog number TA250FJ. These single-barrel lugs accept 4 AWG to 350 kcmil copper or aluminum wire.
What does the H in JGH325033G signify for interrupting ratings?
The H designates this as the high-interrupting tier within the Eaton Series G JG-frame family. It provides 65 kAIC at 480VAC and 100 kAIC at 240VAC, offering higher fault protection than the standard JGE or JGS frames.
Can I adjust the instantaneous trip settings on the JGH325033G?
No, the 33 suffix indicates an LS (Long-Time, Short-Time) electronic trip unit. It does not include an adjustable instantaneous (I) function. If your coordination study requires LSI functionality, a different trip unit configuration is necessary.
Does the JGH325033G include equipment ground fault protection?
No, this specific model features an LS (Long-Time, Short-Time) trip unit. It does not provide integral equipment ground fault protection, which would require an LSG or LSIG trip unit.
Are the terminals on the JGH325033G rated for aluminum wire?
Yes, the standard TA250FJ lugs provided with this breaker are dual-rated for both copper and aluminum conductors. Ensure proper torque and use of joint compound when terminating aluminum wire.
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