DDFL4L6-60V is a compact and high-efficiency 4 sq.mm double level fuse terminal block with integrated 6–60V LED fuse indication, developed for circuit protection, organized wiring, and simplified fault identification in industrial electrical systems. This terminal block combines fuse protection and feed-through connectivity within a single module, making it suitable for industrial control panels, PLC systems, switchgear assemblies, instrumentation cabinets, machine wiring, and automation installations.
The double-level construction integrates two independent electrical functions into one compact body. The upper level provides fuse protection, while the lower level functions as a feed-through connection, helping reduce panel space requirements and minimizing the need for additional terminal accessories. This arrangement can significantly improve panel organization and optimize DIN rail utilization.
One of the major advantages of DDFL4L6-60V is its integrated LED fuse failure indication operating between 6V and 60V. When the fuse opens due to an overload or fault condition, the LED indication provides immediate visual feedback, allowing maintenance personnel to locate failed circuits quickly and reduce diagnostic time. The LED indication supports faster troubleshooting and improves operational efficiency in industrial environments.
The terminal block is designed to support standard 5 × 20 mm glass fuses, allowing convenient fuse replacement and broad compatibility with industrial protection systems. The fuse compartment is engineered for easy access while maintaining safe operation and structured wiring practices.
DDFL4L6-60V uses a screw clamp connection mechanism to provide dependable conductor retention and stable electrical continuity. Screw clamp technology remains widely adopted in industrial installations because it delivers secure wire termination and long-term performance under varying electrical loads and operating conditions. Installation and servicing are completed using a standard screwdriver.
Its side-entry conductor orientation simplifies cable routing and improves accessibility inside compact electrical enclosures. Side-entry wiring supports neat conductor management and makes installation and future servicing more efficient.
The terminal block supports DIN 35 and DIN 35-15 rail mounting, enabling quick installation and compatibility with standardized industrial panel construction methods. DIN rail mounting improves assembly speed and allows easy expansion of electrical systems when additional circuits are required.
DDFL4L6-60V supports conductor sizes from 0.2 sq.mm to 4 sq.mm stranded conductors and up to 6 sq.mm solid conductors, making it suitable for a wide variety of industrial wiring applications. Support for ferrules and twin conductor configurations provides additional installation flexibility.
Manufactured using industrial-grade polyamide housing, the terminal block provides strong insulation performance together with excellent mechanical stability. The housing material supports operation in industrial environments exposed to vibration, electrical loading, and temperature variation.
The product is rated at 500V IEC voltage, 32A IEC current, and includes 6 kV surge voltage resistance with pollution degree 3 protection, making it suitable for demanding industrial applications requiring dependable protection and conductor management.
Its compact 6 mm width supports efficient panel utilization while maintaining accessibility for fuse replacement and maintenance activities. The integrated fuse indication and modular construction reduce downtime and improve overall maintenance efficiency.
DDFL4L6-60V is widely used in industrial control panels, PLC cabinets, DCS systems, process automation installations, switchgear assemblies, machine control systems, instrumentation systems, OEM equipment, and industrial electrical distribution applications where reliable fuse protection and simplified maintenance are required.
| Specification | Details |
|---|---|
| Product Code | DDFL4L6-60V |
| Product Type | Double Level Fuse Terminal Block |
| Connection Technology | Screw Clamp |
| Number of Levels | 2 |
| Number of Connections | 4 |
| Rated Voltage (IEC) | 500 V |
| Rated Current (IEC) | 32 A |
| LED Indication Voltage | 6–60 V |
| Fuse Fail Indication | Yes |
| Fuse Type | Glass Fuse |
| Fuse Size | 5 × 20 mm |
| Wire Entry Orientation | Side Entry |
| Mounting Type | DIN 35 / DIN 35-15 Rail |
| Housing Material | Polyamide |
| Screw Size | M3 |
| Tightening Torque | 0.5 Nm |
| Rated Surge Voltage | 6 kV |
| Pollution Degree | 3 |
| Solid Conductor Range | 0.2–6 sq.mm |
| Stranded Conductor Range | 0.2–4 sq.mm |
| Width | 6 mm |
| Length | 94.5 mm |
Technical specifications compiled from published references.
DDFL4L6-60V is suitable for:
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