1sna163043r2100 – test socket 2mm 120 160,,,,

Why Choose the TE Connectivity 1SNA163043R2100 AL2 2 mm Test Socket?

The TE Connectivity 1SNA163043R2100, also known as the AL2, is a compact 2 mm test socket designed to provide convenient electrical test access on compatible ENTRELEC terminal blocks. This original terminal block accessory allows engineers and maintenance personnel to connect suitable test equipment without disturbing the permanent field wiring.

The AL2 test socket screws into the tapped test hole in the terminal block connector bar, creating a dedicated connection point for a compatible 2 mm test plug. This makes voltage measurement, continuity checking, commissioning and diagnostic work quicker and more organised while helping preserve the integrity of the installed conductor connections.

With a 2 mm socket diameter, compact construction and compatibility across numerous ENTRELEC SNA terminal block families, the AL2 is a useful accessory for industrial control panels, automation systems and electrical distribution equipment. It is commonly paired with the FC2 2 mm test plug and is supplied in standard packs of 50 pieces.

Key Advantages

• Provides a dedicated 2 mm electrical test connection on compatible terminal blocks.
• Allows diagnostic measurements without disconnecting permanent field wiring.
• Screws directly into the tapped hole of the terminal block connector bar.
• Compatible with the FC2 2 mm test plug.
• Supports efficient commissioning, maintenance and fault finding.
• Compact accessory adds test functionality without significantly increasing panel space requirements.
• Original TE Connectivity / ENTRELEC accessory for compatible SNA terminal block systems.

Key Features

• TE Connectivity / ENTRELEC AL2.
• 2 mm diameter test socket.
• Manufacturer part number 1SNA163043R2100.
• Legacy catalogue number 016304321.
• Screw-in installation into compatible terminal block test holes.
• Designed for compatible 2 mm test plugs.
• Suitable for testing and diagnostic access in terminal assemblies.
• Compatible with multiple ENTRELEC SNA screw clamp terminal block families.
• Compact accessory weighing approximately 0.9 g.
• Standard manufacturer package quantity of 50 pieces.

Convenient Test Access for Industrial Terminal Blocks

Test sockets provide a simple way to access electrical circuits during commissioning and maintenance without removing conductors from their terminals. The AL2 screws into the dedicated tapped hole in a compatible ENTRELEC terminal block connector bar, allowing a 2 mm test plug to be inserted whenever measurements or diagnostic checks are required.

This arrangement is particularly useful in densely wired industrial panels where repeatedly disturbing field connections can increase maintenance time and the possibility of wiring errors. When used with the compatible FC2 test plug, the 1SNA163043R2100 provides a practical interface for test instruments while leaving the normal terminal connections securely in place.

Typical Applications

• Industrial control panel testing and commissioning.
• Voltage and electrical measurement access.
• Automation and machinery diagnostics.
• PLC and instrumentation cabinets.
• Electrical distribution panel maintenance.
• Compatible ENTRELEC SNA terminal block assemblies.