Why Choose the TE Connectivity D2.5/8.SNT2.ADO Disconnect Terminal Block?
The TE Connectivity D2.5/8.SNT2.ADO (1SNA199231R2700) is a compact 2.5 mm² ADO knife-disconnect terminal block with two integrated test sockets, designed for industrial control, measurement and automation circuits requiring convenient isolation and testing. Part of the established TE Connectivity ENTRELEC SNA ADO range, it combines circuit-disconnect functionality with ADO insulation-displacement connections on both sides.
A manually operated disconnect knife blade enables the electrical circuit to be opened directly at the terminal without removing connected conductors. The terminal also incorporates two 2 mm test sockets, providing accessible measurement points for commissioning, diagnostics and maintenance work.
The D2.5/8.SNT2.ADO accepts ADO conductors from 1–2.5 mm² and is rated at 15 A and 500 V. Its compact 8 mm spacing, grey polyamide housing, IP20 main-terminal protection and compatibility with standard TH35 DIN rails make it particularly suitable for densely populated industrial control panels.
Key Advantages
- Hand-operated knife disconnect provides convenient individual circuit isolation.
- Two integrated 2 mm test sockets simplify electrical measurement and diagnostics.
- ADO connections on both sides provide efficient insulation-displacement conductor termination.
- 15 A rated current and 500 V rated voltage.
- Accepts ADO conductors from 1–2.5 mm².
- Compact 8 mm width supports high-density DIN rail assemblies.
- Designed for control applications exposed to vibration, shock and demanding industrial conditions.
Key Features
- TE Connectivity / ENTRELEC D2.5/8.SNT2.ADO.
- Knife-disconnect terminal block configuration.
- Hand-operated disconnect blade.
- Two integrated 2 mm test sockets.
- ADO System – ADO System connection arrangement.
- 2.5 mm² rated cross-section.
- ADO conductor capacity of 1–2.5 mm².
- 15 A rated current.
- 500 V rated voltage.
- 6 kV rated impulse withstand voltage.
- 300 A short-time withstand current for 1 s.
- 8 mm terminal spacing.
- Grey polyamide insulating housing with UL 94V-0 flammability classification.
Reliable Circuit Isolation and Testing with ADO Technology
The D2.5/8.SNT2.ADO provides a practical means of isolating individual electrical circuits without disconnecting their wiring. Its hand-operated knife blade creates a clear mechanical disconnect point, making the terminal particularly useful during commissioning, maintenance and fault-finding procedures.
Two integrated 2 mm test sockets provide convenient access for measurement equipment, while the ADO System enables rapid conductor termination and is designed for demanding control applications exposed to vibration, shock and other industrial stresses. The compact 8 mm footprint also helps maximise connection density within DIN rail terminal assemblies.
Typical Applications
- Industrial electrical control panels.
- PLC and automation cabinets.
- Measurement and instrumentation circuits.
- Process control systems.
- Machine control and auxiliary circuits.
- Circuits requiring individual isolation and testing.
- Commissioning and diagnostic terminal assemblies.
- Industrial equipment exposed to vibration and shock.
- OEM machinery and panel building.
