HYRT2Z 1500V 50 Amp Fuse Holder
The HYRT2Z is a high-performance fuse holder rated 1500V DC up to 50A. Compatible with 10×85mm and 14×85mm cylindrical fuses. Compact DIN rail mount design. Paired with HYRT2Z fuse links achieving 50kA breaking capacity. For 1500V PV combiner boxes, inverters, and DC distribution.
Standard: IEC 60269-6
Compatible Fuse: 10×85mm / 14×85mm
Rated Voltage: 1500V DC
Rated Current: Up to 35A (10×85) / 50A (14×85)
Breaking Capacity (with fuse): 50kA
Housing: Flame-retardant thermoplastic
Applications: 1500V PV strings, combiner boxes, battery systems
Product Information
HYRT2Z Series – Next-Generation 1500V DC Fuse Holders for Photovoltaic Systems
HYU Electric’s HYRT2Z Series fuse holders are designed to meet the demanding requirements of 1500V DC photovoltaic systems and provide utilities with certified overcurrent protection devices required by future PV installations. As utilities continue to adopt the 1500V voltage architecture, demand for certified high-voltage overcurrent protection devices will continue to grow.
The HYRT2Z series accepts both 10×85mm and 14×85mm cylindrical fuses, providing flexibility with current ratings from 1A to 50A. This broad range of current ratings allows EPC contractors and panel builders to source components for their 1500V PV projects effectively. Its compact DIN-rail design integrates seamlessly with string-level protection setups in combiner boxes and inverter DC cabinets.
The fused holder’s flame-retardant thermoplastic housing provides reliable insulation at elevated DC voltages. When paired with matching HYRT2Z-1085 or HYRT2Z-1485 fuse links, the complete assembly achieves a 50kA DC breaking capacity, ensuring safe interruption of fault currents in large PV array installations. HUYU Electric offers OEM/ODM factory-direct solutions to EPC contractors and panel builders, including complete compliance documentation.
Technical Specifications – Fuse Holder
| Parameter | HYRT2Z-50 |
|---|---|
| Compatible Fuse Sizes | 10×85mm / 14×85mm |
| Rated Voltage | 1500V DC |
| Rated Current (Max) | 35A (10×85mm) / 50A (14×85mm) |
| Power Loss | 16W |
| Housing Material | Flame-retardant thermoplastic |
| Mounting | 35mm DIN rail |
| MOQ | Contact for project quotation |
Compatible DC Fuse Links
| Parameter | HYRT2Z-1085 | HYRT2Z-1485 |
|---|---|---|
| Fuse Size | 10×85mm | 14×85mm |
| Rated Voltage | 1500V DC | |
| Rated Current Options | 1A–35A (16 ratings) | 15A–45A (9 ratings) |
| Breaking Capacity | 50kA | |
The HYRT2Z fuse holder system offers comprehensive overcurrent protection for 1500V DC photovoltaic circuits. It provides flexibility in selecting between the 10×85mm format for up to 35A and 14×85mm for higher-current applications up to 50A. All compatible fuse links ensure a 50kA DC breaking capacity, allowing safe interruption under critical fault conditions in utility-scale solar arrays.
Designed for Advanced 1500V Utility-Scale PV Systems
As the photovoltaic industry transitions from 1000V to 1500V system architectures, the HYRT2Z fuse holder stands out with advanced features to meet the increased electrical stress of higher voltage applications. Its flame-retardant thermoplastic housing, extended insulation paths, and compatibility with high-voltage cylindrical fuses make it a reliable choice. Whether required as a 50 amp fuse holder for battery storage DC lines or an inline fuse holder for PV strings in combiner boxes, the HYRT2Z fits perfectly on standard 35mm DIN rails along with other components like MCBs and SPDs.
Request a Quotation for HYRT2Z 1500V DC Fuse Holders – Factory Direct
Compatible with 10×85mm / 14×85mm fuses, rated for 1500V DC, up to 50A current. Provides 50kA breaking capacity with HYRT2Z fuse links. Compact DIN-rail mount. Factory-direct OEM/ODM available with custom labeling and full technical documentation. Contact us for pricing and lead time.
Project-Based Pricing • IEC 60269-6 Certified • Worldwide Delivery
OEM/ODM Supply – 1500V DC Fuse Holders for Utility-Scale PV Projects
HYRT2Z – Certified Overcurrent Protection for High-Voltage PV
For combiner box manufacturers and PV system integrators focused on 1500V DC projects, the HYRT2Z fuse holder delivers a reliable platform for string-level overcurrent protection. Supporting both 10×85mm and 14×85mm fuse formats, it can serve string configurations with current ratings between 1A and 50A using a single holder model, optimizing inventory. The compact DIN rail footprint saves enclosure space, and its flame-retardant characteristics meet global fire safety standards. HUYU Electric offers factory-direct pricing, private labeling, and comprehensive IEC 60269-6 documentation for OEM project approvals.
Selecting a Fuse Holder for 1500V PV String Protection
Key considerations when selecting the HYRT2Z for utility-scale solar installations.
1. Choosing Between 10×85mm and 14×85mm Fuses
For residential and commercial modules with PV strings up to 35A, opt for the 10×85mm fuse format. Select the 14×85mm format for strings between 35A and 50A, suitable for bifacial modules or parallel string configurations in large utility-scale plants. The HYRT2Z-50 fuse holder supports both sizes, ensuring flexibility based on your project’s needs.
2. Sizing the Fuse for PV String Protection
Choose a DC fuse rated at 1.25×Isc of the PV string. For instance, if a string has an Isc of 20A, a 25A fuse is recommended. The HYRT2Z-1085 includes 16 ratings from 1A–35A, while the HYRT2Z-1485 offers 9 ratings from 15A–45A. Verify your chosen fuse will not exceed the holder’s maximum current limit.
3. Breaking Capacity Verification
Ensure the 50kA DC breaking capacity exceeds potential short-circuit currents for fault scenarios in large solar installations. The 50kA rating provides a critical safety margin for utility-scale arrays.
4. DIN Rail Installation and Enclosure Planning
Mount the HYRT2Z on standard 35mm DIN rails, placing it alongside other devices like MCBs and SPDs in combiner boxes. Consider its compact design to optimize enclosure space and ensure adequate clearance for heat dissipation, particularly for maximum current applications.
Frequently Asked Questions
What is a fuse holder?
A fuse holder is a safety device that provides a secure mounting and electrical connection for a replaceable fuse. It serves three essential functions: it safely positions the fuse in the circuit, provides insulated terminals for wiring, and contains any arc or heat generated when the fuse operates. The HYRT2Z is a DC fuse holder specifically designed for 1500V photovoltaic systems. Its DIN rail mount design and flame-retardant housing make it suitable for professional installations in PV combiner boxes and inverter cabinets where high DC voltages demand robust insulation and reliable connections.
How to fix a loose fuse holder?
A loose fuse holder can cause intermittent connections, overheating, and potential arc faults. To fix it, first disconnect all power from the circuit. If the holder is DIN rail mounted, check that the rail clips are fully engaged — press the holder firmly onto the rail until you hear a click. For screw-terminal connections, check that all terminal screws are torqued to the manufacturer’s specification. Inspect the fuse clips inside the holder for signs of overheating or loss of spring tension. If the clips are damaged or deformed, replace the entire holder. The HYRT2Z-50 1500V fuse holder features a secure DIN rail mounting mechanism and robust fuse clips designed for consistent contact pressure over its service life. Always perform this maintenance with the system de-energized and follow lockout-tagout procedures.
What is a piggyback fuse holder?
A piggyback fuse holder is a small device that plugs into an existing fuse slot and provides an additional fused circuit — commonly used in automotive applications to power accessories like dash cameras or GPS units. It piggybacks on the original circuit without cutting wires. However, piggyback fuse holders are low-voltage DC devices (typically 12V or 24V) and are not suitable for photovoltaic applications. For solar PV systems, a dedicated high-voltage DC fuse holder like the HYRT2Z is required. It is rated for 1500V DC and 50A, with appropriate insulation and arc containment for safe operation in high-voltage solar circuits. Never use automotive accessories in PV installations.
How to set up a fuse holder?
Setting up the HYRT2Z fuse holder is straightforward. First, mount the holder onto a 35mm DIN rail inside the combiner box or DC cabinet, ensuring it clicks securely into place. Before inserting the fuse, verify that the circuit is de-energized. Select the correctly rated fuse link for the application, insert it into the holder’s clips, and close the protective cover if fitted. Connect the input and output cables to the screw terminals, observing the correct polarity if marked, and torque to the manufacturer’s specification. After double-checking all connections, the circuit can be re-energized. For PV applications, the fuse should be sized at 1.25 × Isc of the string it protects. Always follow local electrical codes and have the installation performed or inspected by a qualified electrician.
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