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1SNA199137R1100 – ADO Terminal D4/8 SN.ADO
TE Connectivity D4/8.SN.ADO 1SNA199137R1100 is a grey 2.5 mm² blade disconnect terminal block with ADO and screw-clamp connections, an integrated 2 mm test socket and IEC ratings of 15 A and 500 V.
£5.38
Why Choose the TE Connectivity D4/8.SN.ADO 1SNA199137R1100 Disconnect Terminal Block?
The TE Connectivity D4/8.SN.ADO 1SNA199137R1100 is a grey blade disconnect terminal block with integrated test socket, designed for industrial control, measurement and automation circuits. Part of the established Entrelec SNA ADO terminal block range, it combines an ADO insulation displacement connection on one side with a conventional screw-clamp connection on the other.
The D4/8.SN.ADO incorporates a hand-operated disconnect knife blade, allowing the electrical circuit to be isolated quickly for testing, commissioning, troubleshooting and maintenance. A 2 mm test socket on the ADO side provides convenient access for measurement equipment without requiring the permanent wiring to be disturbed.
With an IEC rated current of 15 A, rated voltage of 500 V and rated cross-section of 2.5 mm², the D4/8.SN.ADO is well suited to industrial signal and control circuits. Its compact 8 mm width, IP20 main-terminal protection and compatibility with standard TH35 DIN rails make it easy to integrate into modular control-panel assemblies.
Key Advantages
- Hand-operated knife disconnect simplifies circuit isolation during testing and maintenance.
- Combines ADO insulation displacement and screw-clamp connections in one terminal.
- Integrated 2 mm test socket provides convenient measurement access.
- Supports up to two wires per ADO connection.
- 15 A IEC rated current and 500 V rated voltage.
- Compact 8 mm width supports organised, space-efficient DIN rail installations.
Key Features
- TE Connectivity / Entrelec D4/8.SN.ADO disconnect terminal block.
- ADO-to-screw-clamp connection configuration.
- Knife blade disconnect operated by hand.
- Integrated 2 mm test socket on the ADO side.
- 2.5 mm² IEC rated cross-section.
- 15 A IEC rated current.
- 500 V IEC rated voltage.
- 6 kV rated impulse withstand voltage.
- IP20 protection at the main terminals.
- Grey housing with UL 94 V-0 flammability classification.
Convenient Circuit Isolation and Testing
The D4/8.SN.ADO combines conductor termination, circuit disconnection and test access in one compact DIN rail component. Its manually operated knife blade allows technicians to open a circuit without removing the connected conductors, making commissioning, fault finding and routine maintenance more efficient.
The hybrid ADO and screw-clamp configuration provides flexibility when integrating different wiring methods. The ADO side supports fast insulation displacement termination and up to two conductors per connection, while the opposite side provides a conventional screw clamp for standard industrial wiring.
Typical Applications
- Industrial control and automation panels.
- Measurement and instrumentation circuits.
- PLC input and output wiring.
- Machine control and signal circuits.
- Testing, commissioning and fault-finding circuits.
- OEM switchboards and DIN rail terminal assemblies.
Technical Specifications
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| Number of Levels | 1 | |
|---|---|---|
| Product Series | TE SNA ADO | |
| Connection | IDC (ADO) | |
| Terminal Type | Disconnect / Test | |
| Colour | Grey | |
| Manufacturer | TE Connectivity / Entrelec | |
| Series | SNA ADO | |
| Model | D4/8.SN.ADO | |
| Part number | 1SNA199137R1100 | |
| Product type | Blade disconnect terminal block with test socket | |
| Connection configuration | ADO - screw clamp | |
| Disconnect type | Hand-operated knife blade | |
| Test socket | 2 mm diameter, ADO side | |
| Number of levels | 1 | |
| IEC rated cross-section | 2.5 mm² | |
| ADO conductor range | 1–2.5 mm² rigid / stranded | |
| ADO flexible conductor range | 1–2.5 mm² | |
| Screw-clamp rigid conductor range | 0.2–6 mm² | |
| Screw-clamp flexible conductor range | 0.22–4 mm² | |
| IEC rated current | 15 A | |
| IEC rated voltage | 500 V | |
| UL rated current | 15 A | |
| UL rated voltage | 600 V | |
| Rated short-time withstand current | 300 A for 1 s | |
| Rated impulse withstand voltage | 6 kV | |
| Protection rating | IP20 | |
| Pollution degree | 3 | |
| Flammability classification | UL 94 V-0 | |
| Colour | Grey | |
| Width / spacing | 8 mm | |
| Height | 55 mm | |
| Depth | 44.5 mm | |
| DIN rail mounting | TH35-7.5, TH35-15 | |
| Operating temperature | -55 to +110 °C | |
| Net weight | 11 g | |
| Pack quantity | 50 | |
| EAN | 3472591991376 |
Frequently Asked Questions
What is the TE Connectivity D4/8.SN.ADO 1SNA199137R1100 used for?
It is a blade disconnect terminal block used to connect, isolate and test industrial control, signal and measurement circuits.
What connection technologies does the D4/8.SN.ADO use?
The terminal combines an ADO insulation displacement connection on one side with a conventional screw-clamp connection on the other.
Does 1SNA199137R1100 have a test socket?
Yes. The D4/8.SN.ADO incorporates a 2 mm test socket on the ADO side for convenient connection of suitable measurement equipment.
What are the electrical ratings of the D4/8.SN.ADO?
The terminal has an IEC rated current of 15 A, rated voltage of 500 V and rated impulse withstand voltage of 6 kV.
How is the circuit disconnected on the D4/8.SN.ADO?
The circuit is opened using the terminal's hand-operated knife blade, allowing isolation for testing or maintenance without removing the connected conductors.
Trusted Industrial Connection Technology
TE Connectivity’s Entrelec SNA ADO disconnect terminal blocks combine flexible conductor termination, manual circuit isolation and accessible test points for efficient industrial control, measurement and maintenance applications.
