DDFL4L110-240V is a high-performance 4 sq.mm double level fuse terminal block with integrated 110–240V LED fuse indication, designed for secure circuit protection, structured wiring, and simplified maintenance in industrial electrical systems. This terminal block combines feed-through electrical distribution and fuse protection into a compact modular design, making it suitable for industrial control panels, switchgear assemblies, automation systems, instrumentation cabinets, and machine wiring applications.
The terminal block features a double-level construction, enabling both conductor termination and fuse protection within a single installation point. This integrated design helps reduce panel wiring complexity while optimizing available enclosure space. Instead of installing separate fuse holders and terminal blocks, users can achieve organized electrical layouts using a single compact component.
One of the most valuable features of DDFL4L110-240V is its built-in LED fuse status indication operating at 110–240V. The integrated indication circuit provides clear visual feedback whenever the fuse blows, helping technicians identify faults quickly and reducing troubleshooting time during maintenance procedures. This feature improves operational efficiency and minimizes downtime in industrial installations.
Designed for industrial environments, the terminal block supports standard 5×20 mm glass fuses, allowing easy replacement and broad compatibility across electrical systems. The enclosed fuse chamber improves safety and protects internal components while maintaining clean panel organization.
DDFL4L110-240V uses a screw clamp connection system that ensures stable conductor retention and dependable electrical contact. Screw clamp technology remains widely used in industrial panels because of its reliable current transfer and secure wire fastening performance. Installation and operation are performed using a standard screwdriver, simplifying field servicing and panel assembly.
The side-entry conductor orientation allows convenient cable routing and easy installation access in compact electrical cabinets. This design supports neat conductor arrangement and improves accessibility during inspections and maintenance.
Built for DIN rail mounting, DDFL4L110-240V is compatible with standard DIN rail systems including DIN 32, DIN 35, and DIN 35-15 mounting formats. DIN rail compatibility enables faster assembly and supports modular panel expansion when future circuit additions are required.
The terminal block 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 across a wide range of industrial power and control applications. This conductor flexibility supports panel builders and installers working across multiple electrical standards.
Manufactured using industrial-grade polyamide insulation material, DDFL4L110-240V provides excellent insulation performance, mechanical strength, dimensional stability, and resistance to industrial environmental conditions. Polyamide construction contributes to long-term operational reliability under vibration and thermal variations.
With a rated voltage of 1000V and rated current of 6.3A, the terminal block delivers dependable electrical performance for protected control and distribution circuits. The product also offers 5–6 kV surge resistance and is designed for pollution degree 3 environments, improving electrical durability and safety.
Its compact dimensions allow efficient panel utilization while maintaining accessibility for fuse replacement and electrical servicing. The integrated LED indication further supports maintenance teams by enabling rapid fault location without extensive testing procedures.
DDFL4L110-240V is widely used in PLC panels, industrial control cabinets, machine control systems, automation panels, electrical distribution assemblies, instrumentation systems, switchgear panels, and OEM electrical equipment where dependable fuse protection and easy maintenance are essential.
| Specification | Details |
|---|---|
| Product Code | DDFL4L110-240V |
| Product Type | Double Level Fuse Terminal Block |
| Connection Technology | Screw Clamp |
| Fuse Indication | LED |
| LED Operating Voltage | 110–240 V |
| Rated Voltage | 1000 V |
| Rated Current | 6.3 A |
| Fuse Type | Glass Fuse |
| Fuse Size | 5 × 20 mm |
| Wire Entry Orientation | Side Entry |
| Mounting Type | DIN 32 / DIN 35 / DIN 35-15 Rail |
| Housing Material | Polyamide |
| Screw Size | M3 |
| Tightening Torque | 0.5 Nm |
| Rated Surge Voltage | 5–6 kV |
| Pollution Degree | 3 |
| Solid Conductor Range | 0.2–6 sq.mm |
| Stranded Conductor Range | 0.2–4 sq.mm |
| Width | Approx. 6 mm |
Specifications compiled from published technical references.
DDFL4L110-240V is suitable for:
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