Eaton KDPV4175W PVGuard Solar MCCB - UL Listed, 5 kAIC
Part Number: KDPV4175W
Quick Summary
PVGuard Solar MCCB is a complete molded case circuit breaker designed for photovoltaic protection in PV systems. Engineers often struggle to find protection that withstands outdoor temperatures, rapid solar array changes, and remote maintenance demands. UL Listed and CSA Certified provide essential safety compliance, while the 1000 Vdc rating and 5 kAIC interrupt capacity ensure reliable protection across modern PV installations. This solution supports rooftop, ground-mount, and utility-scale projects, simplifying procurement and installation for engineering teams and shortening commissioning cycles. With a four-pole, KD frame design and a complete breaker configuration, it delivers predictable tripping behavior and durable field performance in 50°C environments.
Product Information
Extended Description
KDPV4175W Eaton: Eaton PV Guard / Solar complete molded case circuit breaker, K-frame, KD, Complete breaker, Fixed thermal, fixed magnetic trip type, Four-pole, 175A, 1000 Vdc, 5 kAIC, Without terminals, Photo voltaic, 50°C, 80% rated
Product Name
Eaton PV Guard / Solar complete molded case circuit breaker
Catalog Number
KDPV4175W
UPC
786685883328
Product Length/Depth
12 in
Product Height
8 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 CSA Certified
Amperage Rating
175 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 - KDPV4175W
Eaton Specification Sheet - KDPV4175W
Feature: 175 A amperage rating and 1000 Vdc voltage rating enable protection of high-current PV circuits while maintaining compatibility with common PV arrays. Business Impact: Protects critical PV strings from overloads and shorts, reducing system downtime and maintenance costs. Application: Ideal for rooftop and utility-scale PV protection where reliability is non-negotiable. Feature: 5 kAIC interrupt rating provides robust fault handling for multi-string configurations and fault isolation. Business Impact: Improves safety margins and minimizes arc exposure energy, supporting compliance with stringent PV protection standards. Application: Suitable for four-pole configurations in KD frame installations across harsh outdoor environments. Feature: Four-pole, KD frame, complete breaker design simplifies wiring and protection coordination. Business Impact: Streamlines installation, reduces field wiring errors, and shortens time-to-protection in new builds or retrofits. Application: Commonly used in PV combiner boxes and PV protection schemes. Feature: Calibrated for 50°C and rated 80% to support high-temperature operation without nuisance tripping. Business Impact: Maintains consistent protection in hot climates, lowering nuisance trips and maintenance cycles. Application: Residential to utility-scale PV installations in elevated ambient temperatures. Feature: Without terminals and PV-classification (Photovoltaic) enhances compatibility with PV bus bars and system integration. Business Impact: Reduces additional hardware needs and accelerates assembly in control panels. Application: Solar PV protection where field wiring is optimized for minimal terminal hardware. Feature: Certifications UL Listed and CSA Certified ensure regulatory compliance and safety verification. Business Impact: Accelerates project approval and investor confidence, easing procurement and integration with standardized safety programs. Application: Any regulated solar installation project requiring recognized safety credentials.
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FAQs
The KDPV4175W PVGuard Solar MCCB is a complete four-pole molded case circuit breaker designed for photovoltaic protection in PV systems. It handles 175 A and 1000 Vdc with a 5 kAIC interrupt rating, and is built for photovoltaic environments. Typical applications include rooftop, ground-mount, and utility-scale solar installations where reliable, compliant protection is required. The device supports KD frame integration and a complete breaker configuration for predictable operation in PV protection schemes.
Yes. The KDPV4175W is rated for 1000 Vdc, making it suitable for modern PV arrays, including rooftop and utility-scale configurations. It also features a 175 A rating and 5 kAIC interrupt capacity, ensuring robust protection for high-energy PV circuits. When integrating, verify enclosure compatibility, mounting, and wiring practices to maintain UL Listed and CSA Certified compliance across the system.
Key specs include a 175 A amperage rating, 1000 Vdc voltage rating, 5 kAIC interrupt rating, and a four-pole KD frame with a T186 trip type. The unit is calibrated for 50°C and operates as a complete breaker without terminals. These attributes ensure fast, predictable tripping for PV protection, enabling safe disconnection during faults and reducing risk to equipment and personnel.
The KDPV4175W is specified as ‘without terminals,’ meaning separate terminal hardware must be selected and installed according to the system design. This approach offers flexibility for field wiring and panel configurations, while still delivering full PV protection. Ensure terminal selection and torque specifications align with the panel design to maintain UL Listed and CSA Certified compliance.
The KDPV4175W carries UL Listed and CSA Certified safety certifications, ensuring compliance with recognized electrical standards. Warranty terms follow Eaton’s policy, typically one year from installation or eighteen months from shipment, whichever occurs first. This combination supports risk management and predictable lifecycle costs for solar protection deployments.