Why Choose the TE Connectivity M4/6.D2.2S2 Double-Deck Disconnect Terminal Block?
The TE Connectivity 1SNA199444R2500 M4/6.D2.2S2 is a compact double-deck disconnect terminal block designed for measurement, control and industrial wiring applications where two independently disconnectable circuits are required. Part of the established ENTRELEC SNA screw-clamp range, it accommodates two separate circuits within a terminal only 6 mm wide.
Both levels can be disconnected independently using dedicated pull levers: a black pull lever controls the upper circuit and a grey pull lever controls the lower circuit. This tool-free disconnect arrangement makes the M4/6.D2.2S2 particularly useful for circuit isolation, commissioning, testing and troubleshooting while maintaining an organised DIN rail installation.
The terminal has a rated cross-section of 4 mm², an IEC rated current of 10 A and an IEC rated voltage of 500 V. Screw-clamp connections accept rigid and flexible conductors from 0.2–4 mm², while the terminal's closed construction means that a separate end section is not required.
Key Advantages
- Two independent disconnect circuits within a compact double-deck terminal.
- Only 6 mm wide, helping maximise wiring density on the DIN rail.
- Upper and lower circuits can be disconnected separately.
- Black upper and grey lower pull levers simplify circuit identification.
- Tool-free pull-lever operation supports convenient testing and maintenance.
- 4 mm² rated cross-section with 0.2–4 mm² conductor capacity.
- 10 A, 500 V IEC rating.
- Closed terminal construction means no separate end section is required.
Key Features
- TE Connectivity / ENTRELEC SNA terminal block.
- M4/6.D2.2S2 double-deck disconnect configuration.
- Two levels with two independent electrical circuits.
- Screw clamp conductor connections.
- Disconnect function using pull levers.
- Black pull lever for the upper deck.
- Grey pull lever for the lower deck.
- 4 mm² rated cross-section.
- 10 A IEC rated current.
- 500 V IEC rated voltage.
- 300 V UL rated voltage.
- 6 mm terminal spacing.
- Grey and black colour configuration.
- Compatible with TH35 and G32 mounting rail systems.
Two Independent Disconnect Circuits in a 6 mm Footprint
The M4/6.D2.2S2 combines two independently disconnectable circuits within a single double-deck terminal, providing significant space savings compared with installing separate disconnect terminals for each circuit. The upper and lower levels are not internally connected, allowing each circuit to be wired, isolated and serviced independently.
The dedicated black and grey pull levers provide straightforward visual identification and enable the respective contacts to be opened without tools. Combined with reliable screw-clamp conductor connections, this design makes the terminal particularly suitable for measurement, instrumentation, process control and other circuits where convenient electrical isolation is valuable.
Typical Applications
- Industrial electrical control panels.
- Measurement and instrumentation circuits.
- Factory automation systems.
- PLC input and output wiring.
- Process-control installations.
- Machine control cabinets.
- Circuits requiring convenient isolation or testing.
- High-density DIN rail terminal assemblies.
