Eaton JGSDC3250NN Molded Case Breaker Frame - UL 489
Part Number: JGSDC3250NN
Quick Summary
Eaton JGSDC3250NN molded case breaker frame provides reliable overcurrent protection for PV solar installations. Site engineers often struggle with protecting large solar arrays during fast fault events while preserving compact enclosure layouts. UL 489 certification supports safety and interchangeability in standard electrical panels. This frame-only design delivers a balance of protection and install efficiency, enabling quick panel integration and serviceability. The 250 A rating and three-pole configuration align with typical PV string protection needs, while Cu wire compatibility and a compact footprint help reduce enclosure size. For procurement teams, the combination of a trusted brand, clear specifications, and predictable performance translates to shorter project timelines and improved site reliability.
Product Information
Extended Description
JGSDC3250NN Eaton: Series G JG-frame molded case circuit breaker, Frame Only, 250A, Three-pole, Without collars, Cu wire
Product Name
Eaton PV Guard / Solar molded case circuit breaker frame
Catalog Number
JGSDC3250NN
UPC
786685494036
Product Length/Depth
3.57 in
Product Height
4.13 in
Product Width
4.13 in
Product Weight
6.5 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Certifications
UL 489
Type
Frame only
Amperage Rating
250 A
Voltage rating
600 Vac, 250 Vdc
Circuit breaker type
JG
Circuit breaker frame type
Frame only
Frame
JG
Class
Vdc
Number of poles
Three-pole
PVGard solar circuit breakers product aid
Circuit Protection, Molded Case Circuit Breakers, Volume 4, Tab 2
Value of Circuit Breakers for PV Systems and Eaton PVGard Solar Circuit Breakers
Eaton Specification Sheet - JGSDC3250NN
Eaton Specification Sheet - JGSDC3250NN
Feature frame-only design → Business impact simplifies panel integration and reduces mounting complexity, enabling faster commissioning in tight PV enclosures; Application suitable for solar inverters and PV arrays. Feature 250 A amperage rating → Business impact supports scalable protection without over-sizing, improving protection coordination and cost efficiency; Application for medium to large PV projects. Feature 600 VAC / 250 VDC voltage rating → Business impact allows protection across AC and DC sides of PV systems, simplifying inventory and electrical design; Application in mixed-voltage protection schemes. Feature three-pole construction → Business impact ensures robust three-phase protection and fault isolation, improving system reliability in commercial rooftop and utility-scale installations; Application in three-phase PV installations. Feature compact dimensions (3.57 in depth, 4.13 in height and width) and 6.5 lb weight → Business impact eases cabinet fit and reduces mounting footprint, lowering installation labor and hardware costs; Application in space-constrained electrical rooms. Feature frame type JG and frame-only architecture → Business impact enables flexible mounting and straightforward integration with standard MCCB accessories; Application in modular panel builds and retrofit projects. Feature Cu wire capability and absence of collars → Business impact offers wiring flexibility and faster terminations, reducing field modification time; Application during field wiring and enclosure wiring harnessing. Feature UL 489 certification → Business impact confirms compliance with industry safety standards, supporting code-approved installations; Application in approved electrical protection strategies for PV systems. Feature One-year warranty or 18 months from shipment → Business impact provides risk mitigation and supplier support for project timelines; Application in procurement planning and long-term maintenance planning.
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FAQs
The JGSDC3250NN is designed as a frame-only, three-pole MCCB compatible with Cu wiring and without collars, simplifying mounting in compact enclosures. Plan for 3.57 in depth and 4.13 in height/width, and ensure a 600 VAC / 250 VDC service path to support both AC and DC protection in PV layouts.
Key specs include a 250 A amperage rating, 600 VAC voltage rating, 250 VDC rating, three-pole configuration, and a frame type JG. It is UL 489 listed and designed for frame-only installation, supporting Cu wire without collars.
Yes. It is purpose-built for PV Guard applications, offering reliable overcurrent protection for PV strings and three-phase inverters with a compact, frame-only design that simplifies installation in solar electrical rooms and enclosures.
The JGSDC3250NN carries UL 489 certification, ensuring compliance with recognized safety and protection standards for molded case circuit breakers used in electrical protection assemblies.
Eaton provides a warranty under policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first, accompanied by standard technical support and access to Eaton specification resources.