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1sna399889r0400 – d16/12,nt,l
TE Connectivity 1SNA399889R0400 D16/12.NT.L blue neutral disconnect terminal block with spring-clamp connection, 16 mm² rated cross-section, 76 A rated current and 400 V rated voltage.
Why Choose the TE Connectivity 1SNA399889R0400 D16/12.NT.L Neutral Disconnect Terminal Block?
The TE Connectivity 1SNA399889R0400 is a robust D16/12.NT.L neutral disconnect terminal block from the Entrelec range, designed to provide a secure and easily accessible neutral connection in industrial electrical panels, distribution systems and automation installations. Its spring-clamp connection provides consistent conductor retention while allowing the neutral circuit to be conveniently disconnected for isolation and maintenance.
Designed for 16 mm² conductors, the D16/12.NT.L has a 76 A rated current and 400 V rated voltage. The terminal accepts flexible conductors from 0.5 to 16 mm² and rigid conductors from 0.5 to 25 mm², providing a versatile connection solution for higher-current neutral circuits.
The terminal block has a 12 mm spacing and mounts onto standard TH35-7.5 and TH35-15 DIN rails in accordance with IEC 60715. Its blue housing provides clear neutral circuit identification, while the front wiring entry allows convenient access during installation and servicing.
Key Advantages
- Dedicated neutral disconnect terminal block for industrial electrical installations.
- 16 mm² rated cross-section for higher-current wiring applications.
- 76 A rated current for suitable industrial neutral circuits.
- 400 V rated voltage for low-voltage electrical systems.
- Spring-clamp technology provides consistent conductor retention.
- Easy neutral disconnection for isolation and maintenance.
- Blue housing provides clear neutral circuit identification.
- Suitable for TH35-7.5 and TH35-15 DIN rails.
Key Features
- TE Connectivity / Entrelec D16/12.NT.L terminal block.
- Neutral disconnect function.
- 16 mm² rated cross-section.
- 76 A rated current.
- 400 V rated voltage.
- 12 mm terminal spacing.
- Blue housing for neutral identification.
- Spring-clamp connection technology.
- Front wiring entry for convenient installation and access.
- Designed for TN-C-S network applications.
Reliable Neutral Disconnection with Spring-Clamp Technology
Neutral disconnect terminal blocks provide a convenient method of connecting and isolating neutral circuits during electrical testing, servicing and maintenance. The TE Connectivity D16/12.NT.L uses a spring-clamp connection system that provides reliable conductor contact while allowing the neutral connection to be disconnected when required.
The D16/12.NT.L is specifically developed for TN-C-S network applications and features front wiring entry for straightforward installation and access. Its 12 mm spacing accommodates larger conductors while the blue housing makes the neutral circuit easy to identify within electrical panels.
Typical Applications
- Neutral connections in industrial control panels.
- TN-C-S electrical network installations.
- Electrical distribution and automation cabinets.
- Machine control panels and industrial machinery.
- Neutral isolation and maintenance applications.
- Higher-current DIN rail electrical installations.
Technical Specifications
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| Number of Levels | 1 | |
|---|---|---|
| Connection | Spring clamp | |
| Terminal Type | Disconnect / Test | |
| Conductor Size | 16 mm² | |
| Product Series | TE SNA | |
| Colour | Blue | |
| Manufacturer | TE Connectivity / Entrelec | |
| Series | Entrelec Terminal Blocks | |
| Model | D16/12.NT.L | |
| Manufacturer part number | 1SNA399889R0400 | |
| Product type | Neutral disconnect terminal block | |
| Function | Neutral disconnect | |
| Rated cross-section | 16 mm² | |
| Rated current | 76 A | |
| Rated voltage | 400 V | |
| Rated impulse withstand voltage | 6000 V | |
| Connection type | Spring clamp | |
| Flexible conductor capacity | 0.5–16 mm² | |
| Rigid conductor capacity | 0.5–25 mm² | |
| UL/CSA conductor capacity | 6 AWG stranded | |
| Number of levels | 1 | |
| Terminal spacing | 12 mm | |
| Height | 93.4 mm | |
| Width | 12 mm | |
| Depth | 44.5 mm | |
| Mounting | TH35-7.5 and TH35-15 DIN rail | |
| Insulation material | Polyamide | |
| Colour | Blue | |
| Protection rating | IP10 at main terminals | |
| Pollution degree | 3 | |
| Rated short-time withstand current | 1920 A for 1 s | |
| Operating temperature | -55 to +110 °C | |
| Storage temperature | -55 to +110 °C | |
| Gauge type | A7 | |
| Recommended screwdriver | 6.5 mm | |
| Pack quantity | 10 pieces | |
| EAN | 3472593998892 |
Frequently Asked Questions
What is the TE Connectivity 1SNA399889R0400 used for?
The 1SNA399889R0400 is a D16/12.NT.L neutral disconnect terminal block used to provide a secure neutral connection with convenient isolation in industrial electrical panels and distribution systems.
What conductor size does the D16/12.NT.L support?
The terminal block has a 16 mm² rated cross-section and accepts flexible conductors from 0.5 to 16 mm² and rigid conductors from 0.5 to 25 mm².
What are the voltage and current ratings?
The D16/12.NT.L has a 400 V rated voltage and a 76 A rated current.
Which DIN rails can this terminal block be mounted on?
The D16/12.NT.L is designed for TH35-7.5 and TH35-15 DIN rails in accordance with IEC 60715.
How many terminal blocks are supplied?
The 1SNA399889R0400 is supplied in a 10-piece pack.
Trusted for Industrial Electrical Connections
TE Connectivity / Entrelec terminal blocks provide dependable connection, isolation and distribution solutions for industrial control panels, automation equipment and electrical installations.
