Eaton JGHDC3250NN Solar MCCB Frame - UL 489 PVGard
Part Number: JGHDC3250NN
Quick Summary
Eaton PVGard molded case circuit breaker frame provides reliable protection for PV and solar installations. This frame-only solution helps electrical engineers protect DC PV circuits while preserving space in tight enclosures. Many solar projects face compatibility and terminal options challenges; JGHDC3250NN simplifies specification by delivering a standardized frame with no terminals, ready for Cu wire connections. The product carries UL 489 certification, reflecting safety and compliance with industry standards, and aligns with Eaton’s PVGard family for consistent protection across PV systems. By standardizing on a frame-only MCCB, procurement and maintenance become more predictable, while on-site wiring remains flexible with compatible Cu wiring approaches. This approach supports faster deployment, consistent protection, and easier warranty coverage, delivering tangible business value.
Product Information
Extended Description
JGHDC3250NN Eaton: Series G JG-frame molded case circuit breaker, Frame Only, 250A, JG-frame, Three-pole, Without terminals, Cu wire, JGHDC type
Product Name
Eaton PV Guard / Solar molded case circuit breaker frame
Catalog Number
JGHDC3250NN
UPC
786685494043
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
Terminals
Without terminals
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
PVGard solar circuit breakers technical data sheet
PVGard solar circuit breakers technical data sheet
Feature: Frame-only JG frame molded case circuit breaker design. Business Impact: Reduces terminal clutter and speeds up installation in tight PV enclosures. Application: Ideal for three-pole protection in compact solar panels and PVInverter racks, aligning with JG-frame compatibility and Cu wiring practices. Long-tail keywords: frame-only MCCB, JG frame, molded case circuit breaker for PV systems. Feature: 250 A amperage rating with 600 VAC and 250 VDC voltage ratings. Business Impact: Enables protection of high-current PV feeders and DC protection in solar arrays without sacrificing AC compatibility. Application: Solar plant feeders and DC PV strings where robust short-circuit and overload protection is required. Long-tail keywords: 250 A PV protection, 600 VAC / 250 VDC ratings, DC protection for PV systems. Feature: Three-pole configuration with terminals without terminals. Business Impact: Delivers flexible wiring options and simplified field wiring with Cu conductors, reducing installation time and error-prone splices. Application: Three-phase PV and grid-ted PV trainer panels where clean, terminal-free designs save space. Long-tail keywords: three-pole MCCB, Cu wiring, no terminals. Feature: UL 489 certification. Business Impact: Provides recognized safety compliance for electrical protection devices, easing procurement audits and system approvals. Application: Industrial, commercial, and utility PV installations requiring UL-listed protection. Long-tail keywords: UL 489 molded case circuit breaker, safety listing. Feature: Frame dimensions and weight (3.57 in depth, 4.13 in height and width, 6.5 lb). Business Impact: Facilitates accurate panel planning and enclosure fit, reducing trial-and-error during installation. Application: Retrofit projects and new builds in tight spaces with precise packaging needs. Long-tail keywords: compact MCCB frame, space-saving protection, panel planning. Feature: Warranty and support (Eaton policy 25-000). Business Impact: Improves total cost of ownership through defined warranty coverage and access to Eaton datasheets and product aids. Application: OEM and maintenance teams seeking predictable service life and reliable replacement parts. Long-tail keywords: product warranty, Eaton support, PVGard data sheet access. This content emphasizes compatibility, installation advantages, and measurable outcomes such as space savings, faster deployment, and compliant safety listings to support procurement decisions in solar and electrical protection projects.
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FAQs
The JGHDC3250NN is a frame-only MCCB in the JG family, designed to drop into standard JG-frame panel spaces. It ships without terminals and accepts Cu wiring, simplifying retrofits and new builds. Ensure mounting matches the enclosure pattern and verify the Cu wire sizing per the datasheet. Refer to Eaton PVGard installation guides for torque and mounting details.
This device provides 250 A with a voltage rating of 600 VAC and 250 VDC, enabling both AC feeder protection and DC protection for PV strings. In PV installations, this combination supports protection of three-phase inverters and DC cabling up to 250 V. Ensure system voltages align with the 600 VAC/250 VDC specification and follow UL 489 requirements for safe operation.
Yes. The JGHDC3250NN is part of the PVGard solar protection family and is designed as a frame-only MCCB for DC protection in PV systems. Its three-pole configuration supports balanced protection across three-phase PV feeders, while the frame-only design allows tailored terminal solutions for field wiring with Cu conductors.
The JGHDC3250NN carries UL 489 certification, ensuring conformity with recognized safety and performance standards for molded case circuit breakers. This UL listing supports compliance during audits, helps meet electrical code requirements for PV systems, and provides confidence in safe operation within industrial, commercial, and utility solar deployments.
Frame-only MCCBs simplify BOM management by standardizing with a single JG-frame solution, reducing part variety and stocking. The 250 A rating and UL 489 listing support long service life in demanding PV environments, while the warranty (Eaton policy 25-000) offers protection against early failure. Maintenance is streamlined through consistent product availability and accessible technical datasheets.