1sna103909r0000 – len 480 v

Why Choose the TE Connectivity 1SNA103909R0000 LEN 480 V Fuse Indicator?

The TE Connectivity 1SNA103909R0000, identified as LEN 480 V, is an Entrelec neon fuse indicator designed for use with compatible SNA-series fuse terminal blocks. Operating at a nominal 480 V AC, it provides a visual indication function that helps operators and maintenance engineers identify circuit or fuse status within industrial electrical panels.

The LEN indicator is specifically associated with compatible M10/16.SF fuse terminal blocks. By adding visual status indication directly at the terminal assembly, it can make inspection and troubleshooting more efficient, particularly in control cabinets containing multiple fused circuits where rapid identification is important.

Designed for industrial terminal systems, the 1SNA103909R0000 has a nominal current of 0.5 mA and an individual net weight of approximately 1.7 g. Its compact plug-in accessory format allows the indicator to be integrated into the intended Entrelec fuse-terminal arrangement without requiring a separate panel-mounted indication device.

Key Advantages

• Provides visual neon indication for compatible fused terminal circuits.
• Designed for a nominal operating voltage of 480 V AC.
• Low nominal current of 0.5 mA.
• Designed specifically for compatible M10/16.SF fuse terminal blocks.
• Helps simplify circuit-status checking and fault finding.
• Compact terminal-mounted format avoids the need for a separate panel indicator.
• Genuine TE Connectivity / Entrelec SNA-series accessory.

Key Features

• Entrelec LEN fuse indication accessory.
• 480 V AC nominal voltage.
• 0.5 mA nominal current.
• Neon indication technology.
• Suitable for compatible M10/16.SF terminal blocks.
• Individual net weight of approximately 1.7 g.
• Compact component for modular terminal assemblies.
• Designed for industrial control, distribution and automation panels.

Convenient Visual Fuse Status Indication

Fuse indicators provide a useful visual aid in industrial electrical installations by making it easier to locate the relevant fused circuit during inspection and troubleshooting. When numerous fuse terminal blocks are installed together, integrated indication can significantly reduce the time required to identify the circuit requiring attention.

The LEN 480 V is designed specifically for compatible Entrelec fuse terminal assemblies and uses a neon indicator rated for 480 V AC. Its terminal-mounted design keeps the indication close to the associated circuit, supporting clear and organised control-panel layouts.

Typical Applications

• Industrial electrical control panels.
• Compatible M10/16.SF fuse terminal blocks.
• Fuse-status indication circuits.
• PLC and automation cabinets.
• Machine control systems.
• Electrical distribution panels.
• Process-control and instrumentation equipment.
• Maintenance and troubleshooting of fused terminal circuits.