You may also like
Manufacturer Resources
Spec Sheet
Product Specs
- Amperage Rating:
- 125A
- Circuit Breaker Type:
- JG
- Frame Size:
- JG-frame
- Frequency Rating:
- 50/60 Hz
- Interrupt Rating:
- 100 kAIC at 240 Vac, 65 kAIC at 480 Vac, 25 kAIC at 600 Vac
- Mounting Hardware:
- Metric
- Number Of Poles:
- Two-pole
- Series:
- Series G
- Terminals:
- Line and load
- Trip Type:
- Fixed thermal, adjustable magnetic
- Voltage Rating:
- 600 Vac
- Department:
- Electrical
- Product Group:
- Electrical Components
- Product Subgroup:
- Circuit Breakers
- Product Type:
- Complete breaker
- Product Length:
- 3.57 IN
- Product Details:
- Complete breaker
- Performance Rating:
- 80% rated
- Product Height:
- 4.13 IN
- Product Weight:
- 6 LB
- Product Width:
- 4.13 IN
B-LINE JGH2125FAG – Frequently Asked Questions
1) What is the interrupting rating of the Eaton Series G JGH2125FAG circuit breaker at 480V?
The JGH2125FAG is rated 65 kAIC at 480 Vac. It also carries 100 kAIC at 240 Vac and 25 kAIC at 600 Vac, so it covers service entrance and high fault current locations on 480V systems where a standard J-frame breaker would be under-rated. The H in the catalog number is the high interrupting suffix within the JG frame.
2) Can the JGH2125FAG be loaded continuously at its full 125 amps?
No. This breaker is 80% rated, so the continuous load limit is 100 amps on a 125 amp frame. Size the circuit accordingly, or specify a 100% rated device if the panel schedule calls for continuous duty at the full 125A.
3) Do I need to order terminals separately for the JGH2125FAG?
No. It ships as a complete breaker with both line and load terminals fitted, so nothing extra is needed to land conductors on either end.
4) Is the JGH2125FAG breaker adjustable, or is the trip fixed?
Trip is split: fixed thermal for overload, adjustable magnetic for instantaneous. You can dial the magnetic pickup to coordinate with downstream devices or to ride through motor inrush, but the thermal element is not field adjustable.
5) How many poles and what voltage is the Eaton JGH2125FAG rated for?
Two-pole, rated 600 Vac, 50/60 Hz. That suits 240V and 480V single phase or two-phase line-to-line loads, and it works on 600V systems where the 25 kAIC figure is adequate for the available fault current at that point.
6) What mounting hardware does the Eaton Series G JG breaker use?
Mounting hardware on this Series G breaker is metric. If you are retrofitting into an older panel drilled for inch hardware, plan on the correct metric fasteners or an adapter mounting kit rather than reusing what is in the enclosure.
7) What are the dimensions and weight of the JGH2125FAG JG-frame breaker?
It measures 4.13 x 3.57 x 4.13 inches (height, length, width as published) and weighs 6 lb. Worth checking against the gutter space and door clearance in an existing enclosure before you swap one in.
How fast can I get the B-LINE JGH2125FAG delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the B-LINE JGH2125FAG come with a warranty?
Absolutely. The B-LINE JGH2125FAG is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the B-LINE JGH2125FAG?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the B-LINE JGH2125FAG from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.