1. Introduction
The ETEK EKF1-15PV-10L DC Solar Fuse Holder is designed to provide essential overcurrent protection for photovoltaic (PV) systems. This device safeguards DC circuits from potential damage caused by overloads and short circuits, ensuring the longevity and reliability of your solar power installation. It is suitable for use with 10x85mm gPV fuses and is rated for DC voltages up to 1500V.
2. Product Overview and Features
The EKF1-15PV-10L fuse holder is engineered for robust performance and ease of use in demanding PV environments. Key features include:
- High Quality Copper Parts: Ensures excellent conductivity and durability.
- Flame Retardant Material: Constructed from high-quality resin with superior insulation and flame-retardant properties for enhanced safety.
- Extremely Fast Power Failure Response: Provides rapid protection against overcurrents.
- Reliable Quality & Long Life: Designed for sustained performance in PV systems.
- Stable Performance: Consistent and dependable operation.
- Easy to Install: Features a DIN rail quick clamping device for simple and fast mounting.
- Thermal Hole Design: Integrated heat dissipation holes on the side of the case effectively reduce heat generated during operation, ensuring stability.
- Pull and Plug Design: Allows for easy and safe replacement of 10x38mm melt core fuses.
3. Specifications
| Parameter | Value |
|---|---|
| Product Name | PV Fuse holder |
| Model | EKF1-15PV-10L |
| Rated Voltage | 1500VDC |
| Rated Current Options | 15A, 20A, 25A (compatible with 2A~32A fuses) |
| Fuse Size Compatibility | Φ10x85mm (melt core) |
| Class of Operation | gPV |
| Standard | IEC_60269-6 |
| Tightening Torque | 2.5Nm (14 In-lbs) |
| Cable Termination | 10mm² (6-18AWG) |
| Mounting Type | DIN Rail (EN60715 35mm) |
| Item Length | 12 CM |
| Item Width | 8 CM |
| Item Height | 2 CM |
| Item Weight | 0.2 KG |
| Country/Region of Manufacture | China |
4. Safety Information
Please read and understand all safety instructions before installing, operating, or maintaining the fuse holder. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- High Voltage Warning: This device operates at high DC voltages (up to 1500V). Always ensure power is disconnected and verified before working on the system.
- Qualified Personnel: Installation and maintenance should only be performed by qualified and trained electrical personnel.
- Proper Tools: Use insulated tools appropriate for electrical work.
- Do Not Open Under Load: Never attempt to open the fuse holder or replace a fuse while the circuit is under electrical load. This can cause arcing and severe injury.
- Correct Fuse Rating: Always use fuses with the correct voltage and current rating for your application. Using an incorrect fuse can lead to inadequate protection or system damage.
- Environmental Conditions: Ensure the installation environment is dry and free from excessive dust or corrosive substances.
5. Setup and Installation
The EKF1-15PV-10L fuse holder is designed for quick and secure mounting on a standard 35mm DIN rail.
5.1 Component Identification
Refer to Figure 9 for identification of the following components:
- Fastening screws
- Certification markings
- Mounting mechanism
- Ventilation slots
- Insulating shell
- Barcode
- Brand LOGO
- Model and Parameter information
- Fuse holder compartment
- Terminals
5.2 Mounting on DIN Rail
- Ensure the DIN rail is securely installed according to EN60715 (35mm standard).
- Align the fuse holder's mounting clip with the DIN rail.
- Press the fuse holder firmly onto the DIN rail until it clicks into place. Verify it is securely fastened.
5.3 Wiring Connections
WARNING: Ensure all power to the circuit is disconnected and locked out before making any electrical connections.
- Prepare the cables: The fuse holder accepts cable sizes up to 10mm² (6-18AWG). Strip the insulation to the appropriate length for secure terminal connection.
- Connect the input and output DC cables to the designated terminals on the fuse holder.
- Tighten the fastening screws to a torque of 2.5Nm (14 In-lbs) to ensure a secure and reliable connection.
- Verify all connections are tight and that there are no loose strands or exposed conductors.
6. Operating Instructions
Once properly installed and wired, the ETEK DC Solar Fuse Holder operates passively to protect your PV system. It houses a gPV fuse that will interrupt the circuit in the event of an overcurrent condition.
6.1 Normal Operation
Under normal operating conditions, the fuse holder allows current to flow through the installed fuse without interruption. The thermal hole design ensures efficient heat dissipation, maintaining stable operation.
6.2 Fuse Replacement
If an overcurrent event occurs, the fuse inside the holder will blow, opening the circuit and protecting downstream components. To replace a blown fuse:
- Disconnect Power: Absolutely ensure that all power to the circuit containing the fuse holder is disconnected and verified before proceeding.
- Open the Holder: Press the handle on the fuse holder to open the fuse compartment.
- Remove Blown Fuse: Carefully remove the blown Φ10x85mm melt core fuse.
- Insert New Fuse: Insert a new Φ10x85mm gPV fuse of the correct current rating (15A, 20A, or 25A, as required by your system) into the compartment.
- Close the Holder: Close the fuse compartment securely until it latches.
- Restore Power: Once the new fuse is installed and the holder is closed, power can be safely restored to the circuit.
IMPORTANT: Always replace a fuse with one of the identical type and rating. Never bypass a fuse or use a fuse with a higher rating than specified.
7. Maintenance
Regular maintenance helps ensure the continued safe and efficient operation of your ETEK DC Solar Fuse Holder.
- Periodic Inspection: Annually inspect the fuse holder for any signs of physical damage, discoloration, or loose connections.
- Terminal Tightness: Periodically check the tightness of the terminal screws. Loose connections can lead to overheating and potential failure.
- Cleanliness: Keep the fuse holder free from dust, dirt, and moisture. Use a dry, non-abrasive cloth for cleaning. Do not use solvents or harsh chemicals.
- Fuse Check: If a circuit protected by the fuse holder is not functioning, check the fuse as described in the "Fuse Replacement" section.
WARNING: Always disconnect power before performing any inspection or maintenance.
8. Troubleshooting
This section addresses common issues you might encounter with the fuse holder.
| Problem | Possible Cause | Solution |
|---|---|---|
| No power to the circuit protected by the fuse holder. | Blown fuse. |
|
| Fuse holder feels excessively hot during operation. |
|
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9. User Tips
- Match Fuse to Application: Always ensure the installed fuse's current rating (15A, 20A, or 25A) is appropriate for the specific DC circuit it is protecting in your PV system. Refer to your PV system's design specifications.
- Spare Fuses: Keep spare fuses of the correct type and rating readily available for quick replacement, minimizing system downtime.
- Application Scenarios: This fuse holder is suitable for various applications beyond just photovoltaic systems, including production workshops, electronics industries, and medical facilities, wherever DC circuit protection is needed.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your point of purchase or the manufacturer directly. Ensure you have your product model number (EKF1-15PV-10L) and purchase details available when seeking support.
