Eaton KDPV4225WF01 PV Guard MCCB - UL Listed
Part Number: KDPV4225WF01
Quick Summary
PV Guard MCCB KDPV4225WF01 provides reliable overcurrent protection for photovoltaic installations. For project teams, inconsistent protection in outdoor solar sites can cause nuisance trips and costly downtime. UL Listed certification ensures electrical safety compliance, while the photovoltaic class and freeze-tested design validate performance across temperature swings. The device also supports high 1000 Vdc string ratings, four-pole protection, and a compact KD frame that simplifies enclosure layout. By delivering predictable trips and straightforward installation, this MCCB helps minimize field service, improve system uptime, and meet code requirements for solar DC protection in commercial and utility-scale projects.
Product Information
Extended Description
KDPV4225WF01 Eaton: Eaton PV Guard / Solar complete molded case circuit breaker, K-frame, KD, Complete breaker, Fixed thermal, fixed magnetic trip type, Four-pole, 225A, 1000 Vdc, 5 kAIC, Without terminals, Photo voltaic, Freeze tested, 50°C, 80% rated
Product Name
Eaton PV Guard / Solar complete molded case circuit breaker
Catalog Number
KDPV4225WF01
UPC
786685971032
Product Length/Depth
12 in
Product Height
6.5 in
Product Width
8 in
Product Weight
14.5 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 Listed
Special features
Freeze tested
Amperage Rating
225 A
Voltage rating
1000 Vdc
Trip Type
T186
Circuit breaker type
KD
Circuit breaker frame type
Complete breaker
Rating
80% rated
Terminals
Without terminals
Frame
K
Class
Photovoltaic
Calibration
50°C
Interrupt rating
5 kAIC
Number of poles
Four-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 - KDPV4225WF01
Eaton Specification Sheet - KDPV4225WF01
Feature: 225 A amperage rating and 1000 Vdc voltage rating. Business Impact: Enables safe protection for typical PV strings and DC distribution, reducing conductor heating and arcing risk. Application: Suitable for mid-to-large solar installations where high current protection is required. Feature: Four-pole, KD frame complete breaker. Business Impact: Facilitates common-trip protection and streamlined wiring, cutting installation time and improving reliability. Application: PV arrays with multi-string configurations in control panels and combiner boxes. Feature: Freeze-tested and calibration to 50°C. Business Impact: Maintains reliable operation in exposed outdoor environments and variable climates, lowering field failures. Application: Outdoor racking, unconditioned enclosures, and utility-scale sites. Feature: 80% rated, 5 kAIC interrupt rating. Business Impact: Provides appropriate fault current handling while supporting safe de-energization and system coordination. Application: Design margins for DC protection in PV systems. Feature: UL Listed and without terminals. Business Impact: Simplifies compliance and reduces terminal-related installation steps, lowering total installed cost. Application: Quick deployment in new or retrofit PV protection panels.
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FAQs
KDPV4225WF01 is designed for PV system protection with a 1000 Vdc rating and 225 A operating current in a KD frame. It is a four-pole, complete breaker (no terminals required) that simplifies mounting in standard electrical enclosures and PV combiner boxes, ensuring reliable, code-compliant protection across solar installations.
Key specs include 225 A ampacity, 1000 Vdc voltage rating, 5 kAIC interrupt capacity, and a four-pole design for balanced protection. The unit is freeze-tested and calibrated for 50°C, which translates to dependable operation in outdoor environments and varying weather conditions typical of solar sites.
Yes. The PV Guard MCCB is freeze-tested and rated for photovoltaic class use, designed to endure outdoor conditions. Its 50°C calibration supports reliability in warm environments, while the UL Listed certification confirms compliance with safety standards for solar installations, giving installers confidence in field performance.
The device provides a 225 A amperage rating, 1000 Vdc voltage rating, 5 kAIC interrupt rating, and a T186 trip type within a KD frame. It is a four-pole complete breaker, designed to coordinate protection across PV DC circuits and reduce the risk of arc flash and system faults.
The unit carries Eaton’s warranty policy 25-000, offering one year from installation or eighteen months from shipment, whichever comes first. In addition to UL Listing and PV Class designation, this support framework helps ensure procurement confidence and post-installation service for solar protection equipment.