TE Connectivity 1SNA115407R1400 ENTRELEC MB4/6.L3 is a grey 32 A, 800 V three-way DIN rail distribution terminal block with three internally commoned 4 mm² screw-clamp terminals for industrial electrical distribution.
£5.48
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.
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.
| Manufacturer | TE Connectivity / ENTRELEC |
|---|---|
| Series | MB4/6.L3 |
| Model | MB4/6.L3 |
| Manufacturer part number | 1SNA115407R1400 |
| Product type | Distribution terminal block |
| Function | Electrical distribution |
| Number of ways | 3 |
| Distribution configuration | 3 × 4 mm² terminals commoned internally |
| Connection type | Screw clamp |
| Number of levels | 1 |
| Rated cross-section | 4 mm² |
| Wire size | 4 mm² / 12 AWG |
| Current rating | 32 A |
| Rated voltage (IEC) | 800 V |
| Rated voltage (UL/CSA) | 600 V |
| Rated impulse withstand voltage | 8 kV |
| Pollution degree | 2 |
| Wire stripping length | 9.5 mm |
| Recommended screwdriver | 4 mm |
| Tightening torque (IEC 60947-1) | 0.5 N·m |
| Manufacturer tightening torque | 0.8 N·m |
| Terminal spacing | 6 mm |
| Mounting type | DIN rail |
| Compatible DIN rails | G32, TH35-7.5 and TH35-15 |
| Colour | Grey |
| Flammability rating | UL94 V-2 |
| Dimensions (W × H × D) | 20.5 × 44.5 × 40.5 mm |
| Net weight | 27 g |
| Pack quantity | 5 pieces |
| Barcode / EAN | 3472591154078 |
| ETIM classification | EC001894 distributor assembly terminal blocks |
| Customs tariff number | 85369010 |
The 1SNA115407R1400 is an MB4/6.L3 three-way distribution terminal block used to connect multiple conductors to a common electrical potential in industrial control panels, machinery and automation systems.
The MB4/6.L3 provides three internally commoned 4 mm² terminals, creating a compact three-way electrical distribution point.
The distribution block has a 32 A current rating and an 800 V IEC voltage rating, with a 600 V UL/CSA voltage rating.
The MB4/6.L3 can be mounted on G32, TH35-7.5 and TH35-15 DIN rails, providing flexibility for different industrial panel configurations.
The terminal block has a 4 mm² rated cross-section and supports industrial wiring up to 4 mm² / 12 AWG using secure screw-clamp connections.
TE Connectivity ENTRELEC distribution terminal blocks provide compact and dependable solutions for industrial electrical systems, with the MB4/6.L3 combining three internally commoned terminals, secure screw-clamp termination and flexible DIN rail mounting for efficient circuit distribution.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...