Eaton MDLPV3450W PV Gard Solar MCCB - UL Listed, 7.5 kAIC
Part Number: MDLPV3450W
Quick Summary
The Eaton MDLPV3450W PV Gard Solar complete molded case circuit breaker protects PV arrays in DC solar systems. This device addresses the challenge of reliable DC protection for high-voltage PV circuits, reducing arc risk and equipment damage. UL Listed certification confirms safety compliance for PV installations, while its Photovoltaic class designation and MDL frame compatibility support robust, industry-standard protection. The product delivers clear business value by enabling straightforward installation, consistent performance, and strong support for lifecycle cost reduction in commercial and utility-scale solar projects through dependable DC protection and easy maintenance.
Product Information
Extended Description
MDLPV3450W Eaton: Eaton Series C DC/PvGard complete molded case circuit breaker, MDL-frame, MDL, Complete breaker, Fixed thermal, fixed magnetic trip type, Three-pole, 450A, 1000 Vdc, 7.5 kAIC at 1000 Vdc, Without terminals, Photo voltaic, 80% rated
Product Name
Eaton PV Guard / Solar complete molded case circuit breaker
Catalog Number
MDLPV3450W
UPC
786685882802
Product Length/Depth
8.25 in
Product Height
8.25 in
Product Width
8.25 in
Product Weight
28.4 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 Listed
Amperage Rating
450 A
Voltage rating
1000 Vdc
Trip Type
T186
Circuit breaker type
MDL
Circuit breaker frame type
Complete breaker
Rating
80% rated
Terminals
Without terminals
Frame
MDL
Class
Photovoltaic
Interrupt rating
7.5 kAIC at 1000 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 - MDLPV3450W
Eaton Specification Sheet - MDLPV3450W
The MDLPV3450W uses a complete molded case breaker design within the MDL frame, offering fixed thermal and fixed magnetic trip with a T186 characteristic to ensure fast, predictable shutdown of 450 A circuits at up to 1000 Vdc. Feature → Business Impact → Application: High-current DC protection reduces fault exposure and equipment damage in PV arrays, improving uptime and safety in rooftop and ground-mounted solar installations; suitable for DC distribution boxes and PV combiner panels, enabling reliable protection for critical solar circuits. The three-pole construction and 7.5 kAIC interrupt rating at 1000 Vdc provide ample margin for PV system fault currents, supporting compliance with utility interconnection standards and reducing risk during fault events. Feature → Application Compatibility → Installation advantages: MDL frame, 8.25 in depth/height/width, and 28.4 lb weight facilitate retrofit and replacement in existing PV protection schemes while maintaining consistent mounting footprints and wiring practices. Feature → Business value → Operational efficiency: Without terminals, installation can be streamlined in space-constrained enclosures, lowering labor time and improving field reliability. This device also aligns with Eaton PVGard family best practices, delivering coherent protection across the solar DC network.
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FAQs
For MDLPV3450W, ensure mounting within an MDL frame panel, account for its 8.25 in depth, height, and width, and confirm a three-pole configuration at 450 A. Wire paths should accommodate the device’s terminalsless design, with appropriate DC bus connections and clearances. Verify alignment with PVGard installation practices and proper torque on mounting hardware for reliable fault current interruption.
MDLPV3450W is a three-pole breaker rated for 450 A and 1000 Vdc, with a 7.5 kAIC interrupt capacity. It features fixed thermal and fixed magnetic trip (T186) and is 80% rated. The unit belongs to the MDL frame and is designed for PV systems, with terminals not included and a compact footprint suitable for DC distribution enclosures.
Yes, MDLPV3450W carries UL Listed certification, confirming safety compliance for PV installations. Its photovoltaic class designation and 1000 Vdc rating make it appropriate for PV arrays and DC distribution in rooftop and commercial solar projects, aligning with UL standards and industry best practices for DC protection.
Typical applications include DC protection for PV arrays, rooftop solar installations, DC feeders, and PV combiner boxes. The three-pole configuration and high interrupt rating support critical PV circuit protection, while the MDL frame ensures compatibility with Eaton PVGard protection schemes and streamlined integration into existing solar DC networks.
MDLPV3450W is covered by Eaton’s warranty policy: one year from installation or eighteen months from shipment, whichever occurs first. This warranty, combined with Eaton technical support and access to specification sheets and product aids, helps protect investment in PV protection and reduces long-term maintenance risk.