1sna290458r1200 – d2,5/5,t3,p,l

Why Choose the TE Connectivity 1SNA290458R1200 D2.5/5.T3.P.L Terminal Block?

The TE Connectivity 1SNA290458R1200, also identified as D2.5/5.T3.P.L, is a compact triple-deck spring-clamp terminal block with protective-earth connection designed for high-density industrial control and automation wiring. Part of the established Entrelec SNA terminal block range, it combines multiple feed-through circuits and a ground connection within a narrow DIN-rail footprint.

The terminal block provides three feed-through circuits plus one protective-earth circuit with a total of seven connections. Its front-entry spring-clamp design supports fast installation while maintaining consistent conductor contact pressure independent of the operator, helping reduce maintenance requirements and improve long-term connection reliability.

With a rated current of 20 A, rated voltage of 500 V and a rated cross-section of 2.5 mm², the D2.5/5.T3.P.L is well suited to compact panel assemblies. Its 5 mm width allows substantial wiring density, while the grey and green/yellow colour scheme clearly distinguishes the protective-earth level.

Key Advantages

• Triple-deck plus protective-earth configuration maximises wiring density on the DIN rail.
• Seven connection points support three feed-through circuits and one ground circuit.
• 5 mm-wide design helps conserve valuable control-panel space.
• Spring-clamp connection technology provides consistent conductor pressure without routine screw retightening.
• 20 A rated current and 500 V rated voltage suit a broad range of industrial control circuits.
• Integrated jumper, marking and test-access provisions support organised panel construction and maintenance.

Key Features

• TE Connectivity / Entrelec D2.5/5.T3.P.L spring terminal block.
• Triple-deck feed-through plus ground design.
• Three feed-through circuits and one protective-earth circuit.
• Seven total conductor connections.
• 2.5 mm² rated cross-section.
• 20 A IEC rated current.
• 500 V IEC rated voltage.
• 6 kV impulse withstand voltage.
• Grey and green/yellow housing for clear circuit identification.
• Designed for standard 35 mm DIN rail mounting.

Reliable Multi-Level Wiring for Industrial Panels

Multi-level terminal blocks allow several separate circuits to be terminated vertically within the rail space normally occupied by a single conventional terminal. The D2.5/5.T3.P.L combines this space-saving arrangement with a dedicated protective-earth circuit, making it particularly useful where control, signal and grounding connections must be grouped together efficiently.

Its spring-clamp mechanism maintains stable conductor pressure and automatically compensates for conductor settling, while the front wiring entry keeps connection points accessible during assembly and servicing. Integrated provisions for jumpers, visible marking and test sockets further support efficient commissioning and fault finding.

Typical Applications

• Industrial electrical control panels.
• PLC and automation cabinets.
• Machine-building wiring systems.
• High-density signal and control termination.
• Protective-earth and feed-through circuit distribution.
• Process-control and instrumentation panels.