Select the fuse holder according to the required pole count and whether visual indication is required. The installed 10 × 38 mm fuse-link current rating should be selected independently according to the PV module, string current and overcurrent protection design.
DC Fuse
1000V DC PV Fuse Holder for 10 × 38 mm Fuse – UH-DG-FH01
Model UH-DG-FH01
UH-DG-FH01 is a 1000V DC photovoltaic fuse holder designed for 10 × 38 mm PV fuse links. Rated up to 32A, it supports 1P, 2P, 3P and 4P configurations with DIN-rail mounting, 1–10 mm² copper conductors and an optional LED indicator version for visual fuse status identification.
- 1000V DC / 32A
- 10 × 38 mm Fuse
- 1P to 4P Options
Rated Voltage
1000V DC
Rated Current
1 - 32A
Fuse Size
10 × 38 mm
Pole
1 - 4P
Conductor Cross-Section
1–10 mm²
Mounting Method
DIN Rail
Do not open or replace the fuse while the DC circuit is under electrical load.
Overview
Product Overview
UH-DG-FH01 is a DIN-rail mounted 1000V DC fuse holder designed to accommodate 10 × 38 mm fuse links in photovoltaic string and DC protection circuits. The holder is rated up to 32A and is available in 1P, 2P, 3P and 4P configurations for integration into PV combiner boxes, DC distribution assemblies and other solar protection equipment.
Two operating versions are available: a standard holder and an optional LED indicator version for visual status identification. The terminal design accepts 1–10 mm² copper conductors, with a specified terminal tightening torque of 2–2.5 Nm.
Features
Key Product Features
1000V DC / 32A
10 × 38 mm Fuse
1P to 4P Options
1000V DC PV Protection
UH-DG-FH01 is designed for DC fuse protection applications in photovoltaic circuits with a holder rated voltage of 1000V DC.
10 × 38 mm Fuse Format
The holder accepts the widely used 10 × 38 mm cylindrical fuse format used in photovoltaic string protection and other DC fuse applications.
32A Maximum Rating
The fuse holder is rated up to 32A. The installed fuse-link current rating should be selected separately according to the protected photovoltaic circuit.
1P to 4P Configurations
Single-pole through four-pole configurations are available for different photovoltaic and DC distribution layouts.
Optional LED Indicator
An indicator version is available for applications requiring easier visual identification of fuse status during inspection and maintenance.
DIN-Rail Installation
The modular housing is designed for DIN-rail installation inside PV combiner boxes, DC distribution panels and electrical enclosures.
Technical Data
Technical Specifications
Review the complete technical parameters for product selection and project verification.
Electrical Characteristics
| Parameter | Value |
|---|---|
| Rated Voltage | 1000V DC |
| Rated Current | 1 - 32A |
| Fuse Size | 10 × 38 mm |
| Fuse Type | Replaceable Cylindrical Fuse Link |
| Pole | 1 - 4P |
| Wire Range | AWG 20-8 / 0.52-8.4 mm² |
| Indicator Options | Standard / LED Indicator |
Terminal & Wiring
| Parameter | Value |
|---|---|
| Conductor Type | Copper Wire |
| Conductor Cross-Section | 1–10 mm² |
| Conductor Temperature Rating | 75°C Copper Wire |
| Terminal Tightening Torque | 2–2.5 Nm |
| Terminal Type | Screw Clamp |
Mechanical Characteristics
| Parameter | Value |
|---|---|
| Mounting Method | DIN Rail |
| Module Width | 18 mm per pole |
| Height | 77 mm |
| Depth | 42 mm |
| Fuse Dimensions | Ø10 × 38 mm |
| Housing Color | Dark Gray |
Selection
Choose the Correct UH-DG-FH01 Configuration
| Configuration | Pole Count | Indicator | Rated Voltage | Holder Current | Fuse Size |
|---|---|---|---|---|---|
| UH-DG-FH01-1P | 1P | No | 1000V DC | 32A Max. | 10 × 38 mm |
| UH-DG-FH01-2P | 2P | No | 1000V DC | 32A Max. | 10 × 38 mm |
| UH-DG-FH01-3P | 3P | No | 1000V DC | 32A Max. | 10 × 38 mm |
| UH-DG-FH01-4P | 4P | No | 1000V DC | 32A Max. | 10 × 38 mm |
| UH-DG-FH01-1P-I | 1P | LED | 1000V DC | 32A Max. | 10 × 38 mm |
| UH-DG-FH01-2P-I | 2P | LED | 1000V DC | 32A Max. | 10 × 38 mm |
| UH-DG-FH01-3P-I | 3P | LED | 1000V DC | 32A Max. | 10 × 38 mm |
| UH-DG-FH01-4P-I | 4P | LED | 1000V DC | 32A Max. | 10 × 38 mm |
Mechanical Data
Dimensions
UH-DG-FH01 uses an 18 mm wide modular single-pole housing measuring approximately 77 mm high and 42 mm deep. Multi-pole configurations combine multiple fuse-holder poles for the required DC protection arrangement.
| Dimension | Value |
|---|---|
| Module Width | 18 mm |
| Height | 77 mm |
| Depth | 42 mm |
| Fuse Diameter | 10 mm |
| Fuse Length | 38 mm |
Applications
Where This Product Is Used
PV Combiner Boxes
Connector assemblies support DC cable connections between PV strings, combiner equipment and inverter inputs.
Solar PV Systems
Protection, connectivity and distribution components for photovoltaic arrays, string circuits and related solar DC systems.
UH-DG-FH01 is intended for DC fuse protection inside photovoltaic combiner boxes, string protection assemblies, solar DC distribution panels and related electrical enclosures. Used with a correctly selected 10 × 38 mm PV fuse link, the holder provides a modular and serviceable method of integrating string overcurrent protection into DIN-rail mounted equipment.
Installation
Installation Guidance
1. Confirm that the photovoltaic DC circuit is fully isolated before installing or servicing the fuse holder.
2. Mount the UH-DG-FH01 securely on the DIN rail inside the electrical enclosure.
3. Select a 10 × 38 mm fuse link with voltage and current ratings suitable for the photovoltaic circuit and protection design.
4. Insert the fuse link fully into the fuse holder and close the carrier before energizing the circuit.
5. Connect 1–10 mm² copper conductors to the terminals and tighten the terminal screws to 2–2.5 Nm.
6. For multi-pole installations, confirm the required polarity and circuit arrangement before connecting each pole.
7. Check terminal tightness, conductor retention, fuse installation and holder closure before energizing the DC circuit.
8. Do not open the fuse holder or replace the fuse while the circuit is under electrical load.
System Components
Compatible Accessories
Products selected here are intended to be used together with this product.
1000V DC gPV Fuse 10 × 38 mm for PV String Protection – UH-DG-FU01
UH-DG-FU01 is a 1000V DC gPV fuse link designed for photovoltaic string and array protection. The 10 × 38 mm cylindrical series is available in 10A, 15A, 20A, 25A and 30A ratings and is designed for use with compatible PV fuse holders in combiner boxes and other DC protection assemblies.
View ProductImportant Notes
Do not open or replace the fuse while the DC circuit is under electrical load.
FAQ
Frequently Asked Questions
Is UH-DG-FH01 a fuse or a fuse holder?
UH-DG-FH01 is a replaceable 10 × 38 mm DC fuse holder. The photovoltaic fuse link is selected and installed separately according to the circuit protection requirements.
What fuse size does UH-DG-FH01 use?
UH-DG-FH01 accepts 10 × 38 mm cylindrical fuse links. For photovoltaic string protection, use a DC fuse with voltage and current ratings appropriate for the PV circuit.
Is the holder rated 10A–32A or 32A?
The UH-DG-FH01 fuse holder is rated up to 32A. The current rating of the installed fuse link is selected separately and may be lower than the holder's maximum current rating.
What pole configurations are available?
UH-DG-FH01 is available in 1P, 2P, 3P and 4P configurations, with standard and optional LED indicator versions.
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