DDFL4UBK is a double level fuse terminal block designed for secure electrical connection, circuit protection, and organized panel wiring in industrial electrical systems. It combines the functions of a fuse protection circuit and feed-through connection in one compact terminal block, making it an ideal solution for applications where safe electrical connection and overload protection are required in a single component.
The integrated fuse system helps protect connected circuits from overcurrent and short circuit conditions, improving system safety and preventing damage to sensitive electrical equipment. Its double level compact construction allows more wiring connections in less panel space, making it highly suitable for control panels, PLC systems, instrumentation circuits, automation panels, machine wiring, switchgear assemblies, and industrial electrical installations.
DDFL4UBK uses a secure screw clamp connection mechanism, which provides reliable conductor retention, stable current transfer, and long-term electrical performance. The upper fuse level protects sensitive control circuits, while the lower feed-through level provides continuous conductor connection, combining two functions in one compact design.
Its black colour housing helps in quick visual identification inside electrical panels and supports organized colour-coded wiring layouts. The DIN rail mountable compact design improves panel efficiency, saves space, and simplifies maintenance operations in industrial electrical systems.
DDFL4UBK is used in electrical systems where wire connection and circuit protection are required together in one compact terminal block. It protects electrical circuits from overload conditions while providing safe and organized wiring in industrial panels.
✔ Provides fuse protection for sensitive circuits
✔ Combines connection and protection in one unit
✔ Saves panel space with double level design
✔ Improves wiring organization
✔ Reduces equipment damage risk
✔ Supports safe industrial electrical systems
DDFL4UBK works by combining a screw clamp terminal connection with an integrated fuse holder. Conductors are connected securely through screw clamp terminals, while the fuse installed inside the terminal protects the circuit against overcurrent.
When current exceeds the fuse rating, the fuse interrupts the circuit automatically, preventing damage to connected devices. The upper fuse level provides protection, while the lower feed-through level maintains continuous wiring connection, improving panel efficiency and reducing component count.
⭐ Double Level Fuse Terminal Block Design
⭐ Integrated Fuse Protection System
⭐ Feed Through Lower Level Connection
⭐ Compact Space Saving Construction
⭐ Secure Screw Clamp Wire Connection
⭐ DIN Rail Mountable Design
⭐ Easy Fuse Replacement
⭐ Circuit Isolation Capability
⭐ Reliable Electrical Continuity
⭐ Industrial Grade Insulation Housing
DDFL4UBK improves electrical safety by combining wire termination and circuit protection in one compact unit. The integrated fuse protects circuits against overload and short circuit faults, reducing the chances of damage to electrical equipment.
🔹 Overcurrent circuit protection
🔹 Improves equipment safety
🔹 Reduces electrical fault risk
🔹 Secure wire locking system
🔹 Easy fault identification
🔹 Safer maintenance and servicing
The black colour housing helps in quick visual identification of specific circuits and wiring sections inside electrical panels.
✔ Quick circuit identification
✔ Improves wiring organization
✔ Supports colour coded panel wiring
✔ Reduces maintenance errors
✔ Faster troubleshooting
✔ Professional panel appearance
DDFL4UBK is manufactured using high-strength engineering-grade insulated housing for industrial applications. Its robust construction provides excellent mechanical durability, electrical insulation, and heat resistance for long service life.
✅ Durable industrial-grade housing
✅ Strong screw clamp mechanism
✅ Reliable fuse holder design
✅ Heat resistant insulation material
✅ Compact DIN rail mountable body
✅ Long service life performance
The double level compact design of DDFL4UBK helps improve panel wiring by allowing more connections in less space.
✔ Saves panel space
✔ Reduces wiring clutter
✔ Improves cable management
✔ Supports organized panel design
✔ Faster troubleshooting
✔ Easy maintenance and fuse replacement
✔ Professional panel layout
| Parameter | Specification |
|---|---|
| Product Code | DDFL4UBK |
| Product Type | Double Level Fuse Terminal Block |
| Function Type | Fuse Terminal with Feed Through Connection |
| Terminal Design | Double Level Construction |
| Number of Levels | 2 |
| Number of Connections | 4 |
| Connection Technology | Screw Clamp Connection |
| Fuse Type | 5 x 20 mm Fuse |
| Wire Entry Orientation | Side Entry |
| Operation Method | Screwdriver Operated |
| Mounting Type | DIN Rail Mounting |
| DIN Rail Compatibility | DIN 32 / DIN 35 / DIN 35-15 |
| Housing Material | Polyamide (PA) |
| Housing Colour | Black |
| Pollution Degree | 3 |
| Overvoltage Category | III |
| Operating Temperature Range | -40°C to +105°C |
| Parameter | Specification |
|---|---|
| Rated Voltage (IEC) | 800 V |
| Rated Voltage (UL / CSA) | 600 V |
| Rated Current (Fuse Circuit) | 6.3 A |
| Rated Current (Feed Through Circuit) | 32 A |
| Rated Surge Voltage | 5 kV |
| Short-Time Withstand Current | 0.48 kA |
| Contact Resistance | Low Resistance Contact System |
| Circuit Protection | Integrated Fuse Protection |
| Parameter | Specification |
|---|---|
| Stranded Conductor Range | 0.2 mm² – 4 mm² |
| Solid Conductor Range | 0.2 mm² – 6 mm² |
| AWG Range | 22 AWG – 10 AWG |
| Conductor with Ferrule / Lug | 0.2 mm² – 4 mm² |
| Two Conductors Same Cross Section | 0.2 mm² – 2.5 mm² |
| Twin Ferrule Range | 0.2 mm² – 2.5 mm² |
| Wire Stripping Length | 9.5 mm |
| Internal Cylindrical Gauge | A4 |
| Parameter | Specification |
|---|---|
| Width / Thickness | 8 mm |
| Length | 88 mm |
| Height with DIN 35 x 7.5 mm Rail | 67.4 mm |
| Height with DIN 35 x 15 mm Rail | 74.3 mm |
| Height with DIN 32 Rail | 71.4 mm |
| Screw Size | M3 |
| Tightening Torque (IEC) | 0.5 Nm |
| Tightening Torque (UL / CSA) | 7 lb-in |
| Mechanical Strength | Industrial Grade Durable Construction |
| Parameter | Specification |
|---|---|
| Integrated Fuse Protection | Yes |
| Double Level Wiring | Yes |
| Feed Through Circuit | Yes |
| Circuit Isolation Capability | Yes |
| DIN Rail Mountable | Yes |
| Space Saving Compact Design | Yes |
| Easy Fuse Replacement | Yes |
| Secure Screw Clamp Connection | Yes |
| Parameter | Specification |
|---|---|
| Standard Pack Quantity | 20 Pieces |
| Weight (Excluding Packaging) | 26 gms |
| Weight (Including Packaging) | 29 gms |
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