Why Choose the TE Connectivity D1.5/8.SFDT.ADO 1SNA199212R2400 Fuse Terminal Block?
The TE Connectivity D1.5/8.SFDT.ADO 1SNA199212R2400 is a compact ADO fuse terminal block with LED blown-fuse indication and test access from the Entrelec SNA ADO range. Designed for circuit protection in industrial control applications, it accommodates 5 × 20 mm and 5 × 25 mm cartridge fuses while integrating fused protection directly into a DIN rail terminal assembly.
This SFDT version features a 24 V DC LED blown-fuse indicator, helping maintenance personnel quickly identify a defective protected circuit. The terminal is rated at 6.3 A and 500 V, with a rated cross-section of 1.5 mm² and a rated impulse withstand voltage of 6 kV.
With an 8 mm spacing and compact dimensions of 80.5 × 8 × 41 mm (H × W × D), the 1SNA199212R2400 provides fused circuit protection without requiring excessive DIN rail space. Its grey polyamide housing, ADO connection technology and compatibility with TH35-7.5 and TH35-15 DIN rails make it well suited to industrial control panels, automation equipment and machinery.
Key Advantages
- Integrated protection for 5 × 20 mm and 5 × 25 mm cartridge fuses.
- Built-in 24 V DC LED blown-fuse indication supports rapid fault identification.
- Provides convenient test access for circuit diagnostics and maintenance.
- 6.3 A rated current for protected control circuits.
- 500 V rated voltage with 6 kV impulse withstand capability.
- ADO connection technology provides fast, consistent conductor termination.
- Compact 8 mm width helps optimise available DIN rail space.
- Designed for control applications exposed to vibration, shock and demanding industrial conditions.
Key Features
- TE Connectivity / Entrelec D1.5/8.SFDT.ADO fuse terminal block.
- Manufacturer part number 1SNA199212R2400.
- Suitable for 5 × 20 mm and 5 × 25 mm fuses.
- 24 V DC LED fault indication.
- 6.3 A rated current.
- 500 V rated voltage.
- 1.5 mm² rated cross-section.
- 6 kV rated impulse withstand voltage.
- 180 A for 1 s rated short-time withstand current.
- Single-level terminal configuration.
- Grey polyamide insulating housing.
- IP20 protection at the main terminals.
Reliable Fused Circuit Protection with LED Fault Indication
Fuse terminal blocks integrate conductor termination and circuit protection into a single modular DIN rail component. The D1.5/8.SFDT.ADO accepts commonly used 5 × 20 mm and 5 × 25 mm cartridge fuses, allowing individual control circuits to be protected without requiring separate panel-mounted fuse holders.
The integrated 24 V DC LED provides clear indication when a protected circuit experiences a blown fuse, helping reduce troubleshooting time. Combined with ADO connection technology and a compact 8 mm footprint, the terminal provides an efficient solution for circuit protection and maintenance within industrial automation systems.
Typical Applications
- 24 V DC industrial control circuits.
- PLC and automation cabinets.
- Machine control and signalling systems.
- Process control and instrumentation panels.
- Protected sensor and actuator circuits.
- Industrial DIN rail terminal assemblies.
