1sna399591r2100 – d10/10,nt,l

Why Choose the TE Connectivity D10/10.NT.L Neutral Disconnect Terminal Block?

The TE Connectivity / ENTRELEC D10/10.NT.L, manufacturer part number 1SNA399591R2100, is a robust spring-clamp neutral disconnect DIN rail terminal block designed for neutral conductor isolation in industrial electrical panels, distribution systems and automation equipment. Its dedicated neutral disconnect function allows the neutral circuit to be conveniently isolated for testing, commissioning and maintenance.

The D10/10.NT.L uses spring-clamp connection technology to provide consistent contact pressure independently of installer tightening torque, with automatic compensation for conductor creep helping maintain reliable electrical connections over time. The terminal is specifically suited to neutral distribution arrangements and provides straightforward access from the front of the terminal block.

With a rated cross-section of 10 mm², rated current of 57 A and rated voltage of 400 V, the 1SNA399591R2100 is suitable for demanding industrial neutral circuits. Its blue housing provides clear neutral identification, while the 10 mm-wide body mounts onto standard TH 35 DIN rail for straightforward integration into control panels and distribution assemblies.

Key Advantages

• Purpose-designed neutral disconnect terminal block for industrial electrical systems.
• 10 mm² rated cross-section for higher-current neutral circuits.
• 57 A rated current suitable for demanding control and distribution applications.
• 400 V rated voltage.
• Spring-clamp technology provides consistent contact pressure independent of the operator.
• Automatic conductor creep compensation supports dependable long-term connections.
• Neutral can be conveniently disconnected for isolation, testing and maintenance.
• Blue housing provides clear identification of the neutral circuit.

Key Features

• TE Connectivity / ENTRELEC D10/10.NT.L neutral disconnect terminal.
• 10 mm² rated cross-section.
• 57 A rated current.
• 400 V rated voltage.
• 6,000 V rated impulse withstand voltage.
• Rigid conductor capacity from 0.5–16 mm².
• Flexible conductor capacity from 0.5–10 mm².
• Spring-clamp connection technology with automatic conductor creep compensation.
• Convenient neutral disconnect function for circuit isolation.
• IP20 protection at the main terminals.
• Compact 10 mm width for efficient DIN rail installation.
• Compatible with TH 35-7.5 and TH 35-15 DIN rail.

Reliable Neutral Isolation for Industrial Electrical Systems

Neutral disconnect terminal blocks provide a convenient method of isolating the neutral conductor without requiring permanent wiring to be removed. This is particularly useful during commissioning, insulation testing, fault finding and maintenance, where individual neutral circuits may need to be separated from the neutral distribution system.

The D10/10.NT.L combines this isolation capability with spring-clamp conductor connections that maintain controlled contact pressure and compensate automatically for conductor creep. Its high conductor capacity, 57 A current rating and accessible front wiring arrangement make it well suited to industrial distribution panels, machine control systems and other installations requiring reliable neutral connections.

Typical Applications

• Neutral distribution in industrial electrical panels.
• TN-C-S electrical distribution systems.
• Machine building and OEM control systems.
• Industrial automation and PLC cabinets.
• Power distribution and switchgear assemblies.
• Motor control centres and machinery panels.
• Electrical circuits requiring neutral isolation for testing.
• Industrial maintenance and commissioning installations.