1sna125593r0000 – m16/12.nt1 interruptible

Why Choose the TE Connectivity 1SNA125593R0000 M16/12.NT1 Neutral Disconnect Terminal Block?

The TE Connectivity 1SNA125593R0000, manufacturer designation M16/12.NT1, is a blue neutral disconnect screw-clamp terminal block from the Entrelec SNA range. Designed specifically for neutral conductor circuits, its disconnect function allows the neutral connection to be isolated for testing and maintenance without removing the connected conductors.

The M16/12.NT1 has a rated cross-section of 16 mm², an IEC rated current of 76 A and an IEC rated voltage of 400 V. Its screw-clamp main connection accepts flexible conductors from 2.5 to 16 mm² and rigid conductors from 2.5 to 25 mm², providing substantial wiring capacity for neutral distribution applications.

With a compact 12 mm width, the terminal measures approximately 54 mm high × 40.5 mm deep and weighs around 26 g. It mounts on G32, TH35-7.5 and TH35-15 DIN rails in accordance with IEC 60715 and operates across a wide temperature range of -55 to +110 °C.

Key Advantages

• Dedicated neutral disconnect function simplifies isolation and circuit testing.
• Rated at 76 A and 400 V IEC for industrial neutral conductor applications.
• Rated conductor cross-section of 16 mm².
• Accepts rigid conductors up to 25 mm² and flexible conductors up to 16 mm².
• Reliable screw-clamp connection technology for secure conductor termination.
• Compatible with G32 and TH35 DIN rail formats for flexible installation.

Key Features

• TE Connectivity / Entrelec M16/12.NT1 neutral disconnect terminal block.
• Blue housing for neutral circuit identification.
• Single-level terminal configuration.
• Compact 12 mm terminal spacing.
• 16 mm² rated cross-section.
• 6 kV rated impulse withstand voltage.
• Polyamide insulating housing.
• Suitable for G32, TH35-7.5 and TH35-15 DIN rail mounting.

Convenient Neutral Isolation for Testing and Maintenance

Neutral disconnect terminal blocks are designed to provide a defined point at which the neutral conductor can be separated from the neutral distribution system. This allows insulation measurements, commissioning checks and maintenance procedures to be carried out without repeatedly disconnecting and reconnecting the field conductor from its screw terminal.

The M16/12.NT1 combines this disconnect capability with a 16 mm² rated cross-section and 76 A IEC current rating. Its compatibility with both G32 and TH35 mounting systems makes it suitable for existing Entrelec installations as well as new industrial control and distribution panels requiring an accessible neutral isolation point.

Typical Applications

• Neutral conductor distribution in industrial electrical panels.
• TN-S and TN-C-S electrical installations requiring neutral disconnection.
• Control and distribution panels requiring insulation testing.
• Industrial machinery and automation cabinets.
• Building services and electrical distribution equipment.
• OEM panel building and maintenance of Entrelec SNA terminal systems.