DC Rated Fuses: 1500V Solar & Railway Protection

All Categories
EN EN
Dc Rated Fuses Engineered for Reliable Direct-Current Protection Across Global Industries

Dc Rated Fuses Engineered for Reliable Direct-Current Protection Across Global Industries

ZHNYU ELECTRIC has manufactured dc rated fuses since 1992, combining 34 years of production experience with 100+ production equipment units and a 10,000+ square meter facility to deliver direct-current protection that performs consistently in demanding environments. Our dc rated fuses are engineered for power distribution, industrial control, photovoltaic, petroleum, chemical, metallurgical and railway applications, where stable DC breaking performance is critical. In solar combiner boxes, for example, our fuses maintain stable operation at 1000V DC and 1500V DC, with rated currents from 1A to 630A, interrupting fault currents up to 50kA to protect PV strings from reverse overcurrent and arc faults.
Get A Quote

Case Study

1500V DC Fuses for a 200MW Photovoltaic Plant in Chile

A Chilean EPC contractor needed dc rated fuses for 200MW of PV strings operating at 1500V DC in high-irradiance desert conditions. The main challenge was nuisance tripping caused by temperature cycling and reverse currents. ZHNYU ELECTRIC supplied 1500V DC fuses with 50kA breaking capacity and low temperature rise. After 18 months of operation, the site reported a 40% reduction in fuse-related maintenance calls and zero arc-fault incidents, confirming long-term reliability in utility-scale solar.

1000V DC Fuses for Railway Signaling in Germany

A German railway systems integrator required dc rated fuses for signaling and trackside control cabinets rated 1000V DC. Vibration, humidity and continuous load cycling were causing premature failures. We delivered 1000V DC fuses with high cycling endurance and stable time-current characteristics. After deployment across 120 km of track, the integrator recorded a 35% drop in field failures and extended replacement intervals from 18 to 30 months, lowering maintenance costs.

750V DC Fuses for a Petrochemical Control Upgrade in Saudi Arabia

A Saudi petrochemical operator upgraded DC control circuits rated 750V DC and needed fuses with high interrupting capacity in a high-ambient-temperature environment. ZHNYU ELECTRIC provided 750V DC fuses with 50kA breaking capacity and verified temperature-rise performance. The upgrade eliminated nuisance trips, improved uptime by 12% and passed third-party safety audits, demonstrating dependable protection for critical process control. Products Title: Dc Rated Fuses Portfolio Built for Solar, Railway and Industrial DC Systems

Related products

ATS Dual Power Supply Automatic Switch VIEW DETAILS

ATS Dual Power Supply Automatic Switch

ZYM1L Molded case circuit breaker VIEW DETAILS

ZYM1L Molded case circuit breaker

Strip Fuse-Switch Disconnector VIEW DETAILS

Strip Fuse-Switch Disconnector

HGLR Load isolation switch VIEW DETAILS

HGLR Load isolation switch

ZHNYU ELECTRIC, founded in 1992, is a professional manufacturer integrating R&D, production and sales of low-voltage electrical components and accessories. Our dc rated fuses are developed for direct-current circuits where conventional AC fuses cannot guarantee reliable arc extinction, stable time-current curves and low power dissipation. The production process begins with high-purity fuse-element design and precision stamping, followed by automated welding, ceramic or melamine housing assembly, sand filling, and 100% routine testing for resistance, temperature rise and breaking capacity. Our 10,000+ square meter facility and 100+ production equipment units support annual capacity that serves customers in more than 60 export countries. 

Frequently Asked Questions

How do I select the correct DC voltage and current rating?

Match the fuse voltage rating to the maximum system DC voltage, then select the current rating above the continuous operating current with margin for ambient temperature and cycling. Our engineers review load curves, I2t and fault current to recommend ratings from 1A to 630A, preventing nuisance trips and ensuring safe interruption.
Yes. Our facilities hold ISO9001, CCC and CE certifications, a metering production license and RoHS compliance. Products are tested per applicable standards and supported by technical documentation, helping customers meet local approval requirements in more than 60 export countries.
Standard dc rated fuses ship in 15 to 25 days, depending on configuration. Low minimum order quantities support pilot projects and OEM labeling, and our 100+ production equipment units and 10,000+ square meter facility allow fast scale-up for utility and industrial orders.
Yes. Stable time-current characteristics and low power dissipation reduce nuisance trips and thermal stress. In a 200MW PV plant in Chile, our 1500V DC fuses cut fuse-related maintenance calls by 40% over 18 months, lowering labor and replacement costs.

Related Articles

How to Choose the Right Electrical Connector for Industrial Applications

31

Aug

How to Choose the Right Electrical Connector for Industrial Applications

Practical guide covering environmental, current, and compliance factors when selecting connectors.
View More
How does a fuse switch disconnector improve electrical safety in industrial settings?

02

Sep

How does a fuse switch disconnector improve electrical safety in industrial settings?

Discover how an advanced fuse switch disconnector enhances industrial electrical safety through reliable circuit isolation, arc flash protection, and OSHA compliance.
View More
Why do photovoltaic systems commonly use fuse switch disconnectors?

05

Sep

Why do photovoltaic systems commonly use fuse switch disconnectors?

Discover why photovoltaic systems utilize fuse switch disconnectors for essential PV system protection and safe solar DC isolation, backed by CWPACKAGE.
View More
Why is an isolator switch required in every electrical panel installation?

12

Sep

Why is an isolator switch required in every electrical panel installation?

Need to comply with IEC 61439 & NEC safety standards? Discover the critical role of isolator switches in panel safety, maintenance, and regulatory compliance. Learn more now.
View More

Customer Testimonials

Daniel Weber
Reliable Protection for Utility-Scale Solar

We deployed ZHNYU ELECTRIC 1500V DC fuses across 200MW of PV strings. Nuisance tripping dropped significantly after switching to these dc rated fuses, and fuse-related maintenance calls fell by 40% over 18 months.

Laura Mitchell
Stable Performance in Railway Signaling

Our trackside signaling cabinets operate at 1000V DC with continuous cycling. ZHNYU ELECTRIC dc rated fuses reduced field failures by 35% and extended replacement intervals from 18 to 30 months.

Get a Free Quote

Our representative will contact you soon.
Email
Mobile/WhatsApp
Name
Company Name
Message
0/1000
dc fuse 3 phase fuse dc fuse holder fuse dc dc fuse blocks fuse f2a 250v pv fuse holder dc fuse breaker dc inline fuse types of dc fuse ac and dc fuse ac dc fuse high voltage dc fuse dc hrc fuse fuse for dc circuit solar dc fuse box fuse in dc circuit dc fuse for battery dc solar fuse
34 Years of Focused Manufacturing Expertise

34 Years of Focused Manufacturing Expertise

Since 1992, ZHNYU ELECTRIC has specialized in low-voltage electrical components, including dc rated fuses for solar, railway and industrial DC systems. With 34 years of production experience, 100+ production equipment units and a 10,000+ square meter facility, we control every stage from element design to final testing. This depth of experience translates into stable time-current curves, low power dissipation and consistent breaking capacity up to 50kA. Customers in more than 60 export countries rely on our ISO9001, CCC and CE certified processes, metering production license and RoHS compliance for dependable quality.
Verified Performance Data and Certifications

Verified Performance Data and Certifications

Every batch of ZHNYU ELECTRIC dc rated fuses undergoes resistance, temperature-rise, aging and breaking-capacity testing. Rated from 1A to 630A and 500V to 1500V DC, our fuses support photovoltaic combiner boxes, energy storage, railway signaling and petrochemical control circuits. In a 200MW Chilean PV plant, our 1500V DC fuses reduced fuse-related maintenance calls by 40% over 18 months; in German railway signaling, 1000V DC fuses cut field failures by 35% and extended replacement intervals from 18 to 30 months. These results, backed by ISO9001, CCC and CE certifications, give buyers confidence.
image

ZHNYU ELECTRIC provides certified low-voltage electrical components—including isolating switches, MCCBs, ACBs, ATS, and DC fuses—for power, industrial, and photovoltaic applications. ISO9001, CE, CCC, RoHS compliant. Serving 60+ countries. Partner with us today.ZHNYU ELECTRIC, founded in 1992, is a professional manufacturer integrating R&D, production and sales of low-voltage electrical components and accessories.

USEFUL LINKS

East Qinghe Road, Shahu Industrial Zone, Liushi Town, Yueqing, Wenzhou, Zhejiang

+86-13587761982

[email protected]

Newsletter

ZHNYU Electric: Explore our products, contact us for business cooperation and subscribe newsletters for latest industry updates.

Copyright © 2026 by ZHNYU ELECTRIC - Privacy Policy