TE Connectivity 1SNA115371R2600 M4/6.DE1.D is a 4 mm² double-deck screw-clamp diode terminal block with one negative output, rated at 20 A and 500 V for industrial control and automation circuits.
Why Choose the TE Connectivity M4/6.DE1.D Double-Deck Diode Terminal Block?
The TE Connectivity 1SNA115371R2600 M4/6.DE1.D is a specialised 4 mm² double-deck diode terminal block with one negative output, designed for compact signal conditioning and circuit interfacing within industrial control panels and automation systems. Part of the established ENTRELEC SNA screw-clamp terminal range, it combines two connection levels with an integrated diode function in a space-saving 6 mm-wide housing.
The M4/6.DE1.D incorporates a diode within the terminal assembly, allowing directional current flow to be implemented directly at the terminal level without requiring a separately mounted component. Its double-deck construction increases connection density while dependable screw-clamp terminals provide secure conductor termination for industrial wiring applications.
Rated at 20 A and 500 V, the M4/6.DE1.D accommodates rigid and flexible conductors up to 4 mm². The terminal has an IP20 protection rating and can be mounted on G32, TH35-7.5 and TH35-15 DIN rails, making it a practical solution for PLC interfaces, control circuits, signal systems and machine-building applications.
Key Advantages
Integrated diode function with one negative output simplifies control circuit wiring.
Double-deck construction increases connection density while conserving DIN rail space.
4 mm² conductor capacity supports common industrial control wiring.
20 A rated current and 500 V rated voltage for industrial electrical applications.
Reliable screw-clamp connections provide secure conductor termination.
Compatible with G32, TH35-7.5 and TH35-15 DIN rails for flexible panel installation.
Key Features
TE Connectivity / ENTRELEC SNA series.
M4/6.DE1.D double-deck diode terminal block.
One negative output diode configuration.
4 mm² conductor connection capacity.
20 A rated current.
500 V rated voltage.
Two connection levels with two clamping positions per level.
Screw connection technology on both connection levels.
Compact 6 mm width for high-density terminal assemblies.
IP20 protection rating at the main terminals.
Compact Diode Integration for Industrial Control Circuits
Diode terminal blocks allow diode functionality to be incorporated directly into a terminal strip, helping reduce separate component wiring and simplify control cabinet layouts. The integrated diode permits current to flow in the required direction and is useful in applications such as signal isolation, suppression, logic interfacing and control circuit conditioning.
The M4/6.DE1.D combines this component functionality with a double-deck terminal arrangement, providing increased wiring density in a narrow 6 mm module. Its screw-clamp connections, DIN rail compatibility and industrial operating temperature range make it suitable for reliable integration into automation, instrumentation and machine control systems.
Typical Applications
PLC input and output interface circuits.
Industrial automation control panels.
Signal isolation and directional control circuits.
What is the TE Connectivity 1SNA115371R2600 used for?
The 1SNA115371R2600 M4/6.DE1.D is a double-deck diode terminal block used to combine conductor termination with integrated diode functionality in industrial control, signal and automation circuits.
What diode configuration does the M4/6.DE1.D provide?
The M4/6.DE1.D is a 4 mm² double-deck diode terminal with one negative output.
What are the electrical ratings of the M4/6.DE1.D?
The terminal block has a rated current of 20 A and a rated voltage of 500 V.
What conductor sizes can the 1SNA115371R2600 accommodate?
The terminal is designed for conductors up to 4 mm², with rigid and flexible conductor connection ranges of 0.5–4 mm².
Which DIN rails are compatible with the M4/6.DE1.D?
The terminal block can be mounted on G32, TH35-7.5 and TH35-15 DIN rails, allowing straightforward integration into industrial terminal assemblies and control panels.
Trusted by Industrial Panel Builders Worldwide
TE Connectivity ENTRELEC SNA terminal blocks provide dependable connection and component integration solutions for industrial control panels, machinery and automation equipment, helping panel builders create compact, organised and serviceable electrical installations.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...