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1sna399230r1200 – d2,5/5,snt23,ado
TE Connectivity D2.5/5.SNT23.ADO 1SNA399230R1200 is a compact 10 A, 320 V disconnect terminal block combining ADO and screw-clamp connections with a hand-operated knife blade for industrial control and automation circuits.
Why Choose the TE Connectivity D2.5/5.SNT23.ADO 1SNA399230R1200 Disconnect Terminal Block?
The TE Connectivity D2.5/5.SNT23.ADO 1SNA399230R1200 is a compact disconnect terminal block with ADO and screw-clamp connections designed for reliable circuit isolation in industrial control, automation and electrical panel applications. Part of the established Entrelec ADO System terminal block range, it combines fast ADO conductor termination with a conventional screw-clamp connection and a manually operated disconnect knife blade.
The D2.5/5.SNT23.ADO is designed to simplify disconnect operations while retaining securely terminated conductors. Its hand-operated knife-blade mechanism allows the electrical circuit to be opened for commissioning, maintenance and fault finding, while the ADO connection system can accommodate up to two wires per connection for flexible panel wiring.
With a rated current of 10 A, rated voltage of 320 V and rated cross-section of 1 mm², the 1SNA399230R1200 provides dependable circuit connection and isolation in a compact 5 mm wide format. Its IP20 main-terminal protection and compatibility with standard TH35 DIN rails make it well suited to densely populated industrial control cabinets.
Key Advantages
- Compact disconnect terminal block combining ADO and screw-clamp connectivity.
- 10 A rated current for industrial control and automation circuits.
- 320 V rated voltage with 4 kV impulse withstand capability.
- Hand-operated disconnect knife blade simplifies circuit isolation.
- ADO connection technology supports up to two wires per connection.
- Compact 5 mm width helps maximise wiring density inside control panels.
Key Features
- TE Connectivity Entrelec D2.5/5.SNT23.ADO terminal block.
- ADO insulation displacement and screw-clamp connection technologies.
- 10 A rated current.
- 320 V rated voltage.
- 1 mm² rated cross-section.
- 120 A short-time withstand current for 1 s.
- 4 kV rated impulse withstand voltage.
- Hand-operated disconnect knife blade.
- IP20 protection at the main terminals.
- Grey polyamide insulating housing.
- Compatible with TH35-7.5 and TH35-15 DIN mounting rails.
Reliable Circuit Isolation for Industrial Control Systems
Disconnect terminal blocks provide a convenient method of isolating individual electrical circuits for commissioning, testing and maintenance without removing permanently connected wiring. The D2.5/5.SNT23.ADO uses a manually operated knife blade to open the circuit while keeping conductors securely terminated on either side of the terminal.
The combination of ADO and screw-clamp connection technologies provides flexibility when building or maintaining industrial control systems. The ADO connection offers rapid conductor termination and accommodates up to two wires per connection, while the screw-clamp side provides a familiar and versatile termination method for conductors up to 4 mm² rigid or 2.5 mm² flexible.
Typical Applications
- Industrial control panels and switchgear.
- PLC and automation control systems.
- Instrumentation and process control circuits.
- Machine building and OEM equipment.
- Commissioning and maintenance circuits.
- Industrial electrical distribution and control installations.
Technical Specifications
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| Number of Levels | 1 | |
|---|---|---|
| Product Series | TE SNA ADO | |
| Connection | IDC (ADO) | |
| Terminal Type | Disconnect / Test | |
| Conductor Size | 1 mm² | |
| Colour | Grey | |
| Manufacturer | TE Connectivity / Entrelec | |
| Series | ADO System | |
| Model | D2.5/5.SNT23.ADO | |
| Manufacturer part number | 1SNA399230R1200 | |
| Product type | Disconnect terminal block | |
| Function | Disconnect | |
| Connection technology | Screw clamp / ADO System | |
| Rated current | 10 A | |
| Rated voltage | 320 V | |
| Rated impulse withstand voltage | 4 kV | |
| Dielectric test voltage | 2500 V | |
| Rated cross-section | 1 mm² | |
| Rated short-time withstand current | 120 A for 1 s | |
| Screw-clamp flexible conductor range | 0.22–2.5 mm² | |
| Screw-clamp rigid conductor range | 0.2–4 mm² | |
| ADO wires per connection | Up to 2 | |
| Number of levels | 1 | |
| Protection rating | IP20 at main terminals | |
| Insulation material | Polyamide | |
| Flammability rating | UL94 V0 | |
| Pollution degree | 3 | |
| Colour | Grey | |
| Wire stripping length | 9.5 mm | |
| Recommended screwdriver | 3.5 mm | |
| Tightening torque | 0.4–0.6 N·m | |
| Mounting type | DIN rail mounting | |
| Compatible rails | TH35-7.5 and TH35-15 | |
| Width / spacing | 5 mm | |
| Height | 55 mm | |
| Depth | 44.5 mm | |
| Operating temperature | -55 to +110 °C | |
| Storage temperature | -55 to +110 °C | |
| Weight | approx. 9 g | |
| Pack quantity | 50 | |
| Barcode / EAN | 3472593992302 |
Frequently Asked Questions
What is the TE Connectivity D2.5/5.SNT23.ADO 1SNA399230R1200 used for?
The D2.5/5.SNT23.ADO is used to connect and disconnect electrical circuits in industrial control panels, automation equipment and other applications where convenient circuit isolation is required.
What current and voltage is the D2.5/5.SNT23.ADO rated for?
The terminal block has a rated current of 10 A and a rated voltage of 320 V, with a rated impulse withstand voltage of 4 kV.
How does the disconnect function operate?
The D2.5/5.SNT23.ADO incorporates a hand-operated knife-blade disconnect mechanism that opens the electrical circuit while allowing the connected conductors to remain securely terminated.
What conductor sizes can the screw-clamp connection accept?
The screw-clamp connection accepts rigid conductors from 0.2–4 mm² and flexible conductors from 0.22–2.5 mm².
How is the 1SNA399230R1200 mounted?
The terminal block is designed for DIN rail mounting and is compatible with TH35-7.5 and TH35-15 rails, with a compact terminal width of 5 mm.
Trusted for Industrial Control Connections
TE Connectivity Entrelec ADO terminal blocks provide compact and dependable electrical connectivity for industrial control systems, combining efficient conductor termination with practical circuit isolation for panel builders, machine builders and automation engineers.
