1sna115407r1400 – mb4/6.l3 distribution block

Why Choose the TE Connectivity 1SNA115407R1400 MB4/6.L3 Distribution Terminal Block?

The TE Connectivity 1SNA115407R1400, also identified as the ENTRELEC MB4/6.L3, is a compact three-way DIN rail distribution terminal block designed for distributing electrical connections within industrial control panels, machinery and automation systems. Its three 4 mm² terminals are internally commoned, providing a simple and organised method of connecting multiple conductors to a common electrical potential.

Part of the established ENTRELEC distribution terminal range, the MB4/6.L3 uses reliable screw-clamp connection technology and provides a rated cross-section of 4 mm². The three-way configuration reduces the need for separate external bridging while supporting efficient, serviceable wiring within compact electrical cabinets.

With a 32 A current rating, an 800 V IEC voltage rating and an 8 kV rated impulse withstand voltage, the 1SNA115407R1400 provides dependable performance for industrial distribution circuits. Its grey housing measures approximately 20.5 × 44.5 × 40.5 mm and supports G32, TH35-7.5 and TH35-15 DIN rail mounting.

Key Advantages

• Compact three-way distribution terminal block for industrial panel wiring.
• Three 4 mm² terminals commoned internally for convenient circuit distribution.
• 32 A current rating for industrial electrical applications.
• 800 V IEC voltage rating with 8 kV impulse withstand capability.
• Reliable screw-clamp termination for secure conductor connections.
• Compatible with G32, TH35-7.5 and TH35-15 DIN rails.

Key Features

• TE Connectivity / ENTRELEC MB4/6.L3 distribution terminal block.
• Three-way distribution configuration.
• 3 × 4 mm² terminals commoned internally.
• 4 mm² rated cross-section.
• Screw-clamp connection technology.
• 32 A current rating.
• 800 V IEC voltage rating.
• 600 V UL/CSA voltage rating.
• 8 kV rated impulse withstand voltage.
• 6 mm terminal spacing.
• 9.5 mm wire stripping length.
• Grey housing for standard industrial terminal identification.

Compact Three-Way Distribution for Industrial Panels

Distribution terminal blocks such as the TE Connectivity ENTRELEC MB4/6.L3 provide a convenient way to connect several conductors to a common electrical potential. Its three internally commoned 4 mm² terminals create an integrated distribution point, reducing the requirement for separate external bridging components and helping maintain clear, structured panel wiring.

The MB4/6.L3 combines a compact footprint with proven screw-clamp termination and broad DIN rail compatibility. Its 32 A current rating, 800 V IEC voltage rating and robust industrial construction make it suitable for control panels, machinery, automation equipment and other applications requiring reliable three-way electrical distribution.

Typical Applications

• Industrial electrical control panels.
• Three-way common potential distribution.
• PLC and automation cabinets.
• Machine-building and OEM equipment.
• Manufacturing and process-control systems.
• DIN rail-mounted power and control distribution assemblies.