DDFL4 is a 4 sq.mm double level fuse terminal block engineered for secure circuit protection and organized electrical distribution in industrial control and power applications. Designed with a dual-level configuration, this terminal block integrates a fuse carrier at the upper level and a feed-through terminal connection at the lower level, eliminating the need for additional terminal blocks and helping optimize panel space.
This terminal block is built to improve wiring efficiency and simplify electrical protection within modern control cabinets and industrial installations. By combining conductor termination and fuse protection into one compact unit, DDFL4 reduces installation complexity while maintaining reliable electrical performance.
The double-level architecture enables installers to create structured and organized panel layouts while reducing wiring congestion. The upper fuse section allows quick fuse replacement and circuit isolation, while the lower terminal provides dependable feed-through connectivity for electrical distribution systems.
Designed for DIN rail mounting, DDFL4 supports fast installation and efficient use of enclosure space. Compatibility with DIN 32, DIN 35, and DIN 35-15 mounting rails makes it suitable for a broad range of electrical cabinet and switchgear configurations.
The terminal block uses a screw clamp connection mechanism that provides stable conductor retention and secure electrical contact. The side-entry wiring design allows convenient access during installation and servicing, making it practical for compact panel environments and high-density wiring layouts.
Manufactured using industrial-grade polyamide insulation material, DDFL4 offers excellent mechanical strength, electrical insulation performance, dimensional stability, and resistance to industrial operating conditions. The housing material is designed to withstand regular thermal changes and environmental exposure found in automation and distribution systems.
With a rated voltage of 800V and rated current of 6.3A, this fuse terminal block supports dependable operation in low and medium power industrial circuits where circuit protection and safe conductor management are essential. The integrated fuse arrangement supports quick maintenance and minimizes downtime during electrical faults.
DDFL4 supports multiple conductor types including solid and stranded wires, offering flexibility across industrial control panels, machine wiring systems, automation equipment, instrumentation networks, and electrical distribution applications.
Its compact design makes it ideal for installations requiring reliable protection, simplified maintenance, and efficient panel organization.
| Specification | Details |
|---|---|
| Product Code | DDFL4 |
| Product Type | Double Level Fuse Terminal Block |
| Connection Technology | Screw Clamp |
| Terminal Function | Fuse + Feed Through |
| Rated Voltage | 800 V |
| Rated Current | 6.3 A |
| Housing Material | Polyamide |
| Wire Entry Orientation | Side Entry |
| Mounting Type | DIN 32 / DIN 35 / DIN 35-15 Rail |
| Screw Size | M3 |
| Tightening Torque | 0.5 Nm |
| Rated Surge Voltage | 5 kV |
| Pollution Degree | 3 |
| Stranded Conductor Range | 0.2 – 4 sq.mm |
| Solid Conductor Range | 0.2 – 6 sq.mm |
| AWG Range | 22–10 AWG |
| Stripping Length | 9.5 mm |
| Width | Approx. 8 mm |
Specifications compiled from published technical data.
DDFL4 is commonly used in:
Its integrated fuse function makes it suitable for circuits where protection, easy maintenance, and compact panel design are important.
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