Why Choose the TE Connectivity M4/6.D2 Yellow Double-Deck Terminal Block?
The TE Connectivity M4/6.D2, manufacturer part number 1SNA105045R2200, is a yellow 4 mm² double-deck feed-through terminal block designed for high-density industrial control-panel wiring. Part of the established TE Connectivity / Entrelec SNA Series, it provides two independent circuits within a compact 6 mm DIN rail footprint, helping maximise wiring density without increasing panel width.
The M4/6.D2 uses proven screw-clamp connection technology and is rated at 32 A and 800 V to IEC specifications. It accepts flexible conductors from 0.22–4 mm² and rigid conductors from 0.2–4 mm², providing a versatile connection solution for signal, control and industrial electrical circuits.
Its durable polyamide housing provides IP20 protection and a UL94 V-0 flammability rating, while the operating temperature range extends from -55 to +110 °C. The terminal mounts onto G32, TH35-7.5 and TH35-15 DIN rails, making it suitable for a wide range of industrial panel and machine-building installations.
Key Advantages
- Double-deck design provides two independent circuits within only 6 mm of DIN rail space.
- 32 A / 800 V IEC rating supports demanding industrial control and electrical applications.
- 4 mm² rated cross-section with flexible conductor capacity from 0.22–4 mm².
- Proven screw-clamp termination provides secure and dependable conductor connections.
- Compatible with G32, TH35-7.5 and TH35-15 DIN rails.
- Yellow housing provides convenient visual identification within complex terminal assemblies.
Key Features
- TE Connectivity / Entrelec SNA Series.
- M4/6.D2 yellow double-deck terminal block.
- Two independent feed-through circuits.
- 2 levels with 4 conductor connection points.
- 6 mm pitch for space-efficient panel construction.
- 32 A rated current to IEC.
- 800 V rated voltage to IEC.
- 4 mm² rated conductor cross-section.
- 480 A short-time withstand current for 1 s.
- IP20 protection at the main terminals.
- Polyamide insulating housing with UL94 V-0 flammability classification.
High-Density Double-Deck Terminal Connections
Double-deck terminal blocks provide two independent electrical circuits in the rail space normally occupied by a single terminal position. The TE Connectivity M4/6.D2 achieves this within a compact 6 mm pitch, making it particularly useful in control cabinets where DIN rail space is limited and large numbers of field signals or control conductors must be terminated.
The terminal combines its space-saving two-level arrangement with reliable screw-clamp technology and a 4 mm² rated cross-section. Compatibility with G32 and standard 35 mm DIN rails provides installation flexibility, while the yellow housing can help installers distinguish particular circuits, functions or wiring groups within larger terminal assemblies.
Typical Applications
- Industrial electrical control panels.
- High-density PLC and automation wiring.
- Machine building and OEM equipment.
- Process-control and instrumentation systems.
- Switchgear and electrical distribution assemblies.
- Signal and control circuit termination.
