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1sna125505r1000 – ma2.5/5.snb blue
TE Connectivity 1SNA125505R1000 MA2.5/5.SNBTA is a blue 2.5 mm² screw-clamp blade-disconnect terminal block rated at 10 A and 320 V IEC for industrial signal circuit isolation and testing.
£1.77
Why Choose the TE Connectivity 1SNA125505R1000 MA2.5/5.SNBTA Disconnect Terminal Block?
The TE Connectivity 1SNA125505R1000, manufacturer designation MA2.5/5.SNBTA, is a compact blue screw-clamp disconnect terminal block designed for signal wiring, circuit isolation and testing in industrial electrical panels. Part of the established TE Connectivity ENTRELEC SNA series, it combines secure screw-terminal connections with a practical blade disconnect mechanism in a space-saving DIN rail format.
Designed around a 2.5 mm² nominal wire size and narrow 5 mm spacing, the MA2.5/5.SNBTA provides two positions, two poles and a single circuit on one level. The disconnect blade can be operated for convenient circuit isolation during commissioning, troubleshooting and maintenance without removing the connected conductors.
With an IEC rated current of 10 A and IEC rated voltage of 320 V, this terminal block is suited to industrial signal and control circuits. Its Polyamide 6.6 housing, screw-clamp termination and compatibility with G32, TH35-7.5 and TH35-15 DIN rails make it a dependable solution for organised control-panel wiring.
Key Advantages
- Compact blade-disconnect terminal block for signal and control circuits.
- 5 mm spacing helps maximise available DIN rail space.
- 10 A IEC current rating and 320 V IEC voltage rating.
- Disconnect blade simplifies circuit isolation, testing and maintenance.
- Screw-clamp connections provide secure and serviceable conductor termination.
- Blue housing provides clear visual identification within organised panel wiring.
- Compatible with several standard DIN rail profiles for flexible installation.
Key Features
- TE Connectivity ENTRELEC SNA series.
- MA2.5/5.SNBTA disconnect configuration.
- 2.5 mm² / 12 AWG nominal wire size.
- 10 A IEC rated current.
- 320 V IEC rated voltage.
- Blade disconnect mechanism for convenient circuit isolation.
- Single circuit with two positions and two poles.
- 5 mm product spacing.
- Screw-terminal conductor termination.
- Blue Polyamide 6.6 housing.
- DIN rail mounting on G32, TH35-7.5 and TH35-15 profiles.
Reliable Signal Isolation and Testing
Disconnect terminal blocks allow individual circuits to be isolated without removing field wiring, helping simplify commissioning, diagnostics and routine maintenance. The TE Connectivity MA2.5/5.SNBTA uses a blade disconnect arrangement that provides convenient separation of the circuit while keeping conductors securely terminated in the screw clamps.
Its narrow 5 mm profile helps maximise connection density in control cabinets, while the common SNA terminal profile supports organised marking and integration alongside compatible terminal blocks and accessories. The result is a practical solution for signal circuits where accessible isolation and dependable conductor termination are required.
Typical Applications
- Industrial control panels and switchboards.
- Signal circuit isolation and testing.
- PLC and automation control cabinets.
- Instrumentation and process-control systems.
- Machine-building electrical systems.
- Commissioning and diagnostic circuits.
- OEM equipment and industrial panel assemblies.
Technical Specifications
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| Number of Levels | 1 | |
|---|---|---|
| Product Series | TE SNA | |
| Connection | IDC (ADO) | |
| Terminal Type | Disconnect / Test | |
| Conductor Size | 2.5 mm² | |
| Colour | Blue | |
| Manufacturer | TE Connectivity | |
| Range | ENTRELEC SNA | |
| Part number | 1SNA125505R1000 | |
| Model | MA2.5/5.SNBTA | |
| Product type | Screw-clamp terminal block | |
| Block function | Disconnect | |
| Disconnect type | Blade | |
| Number of circuits | 1 | |
| Number of positions | 2 | |
| Number of poles | 2 | |
| Number of levels | 1 | |
| Gauge type | A3 | |
| Wire size | 2.5 mm² / 12 AWG | |
| Flexible conductor capacity | 0.5–2.5 mm² | |
| Rigid stranded conductor capacity | 0.5–4 mm² | |
| Rated current (IEC) | 10 A | |
| Rated current (CSA) | 15 A | |
| Rated voltage (IEC) | 320 V | |
| Rated voltage (CSA) | 600 V | |
| Impulse withstand voltage (IEC) | 4000 V | |
| Short-time withstand current | 120 A for 1 s | |
| Termination method | Screw terminal | |
| Tightening torque | 0.4 Nm | |
| Wire stripping length | 10 mm | |
| Tool size | 3.5 mm | |
| Product spacing | 5 mm | |
| Dimensions (H × W × D) | 44.5 × 5 × 44.5 mm | |
| Housing material | Polyamide 6.6 | |
| Colour | Blue | |
| Protection rating | IP10 | |
| UL flammability rating | UL 94V-0 | |
| DIN rail mounting | G32, TH35-7.5 and TH35-15 | |
| Installation temperature range | -5 to +40 °C | |
| Operating temperature range | -55 to +110 °C | |
| Product weight | 11 g | |
| Circuit application | Signal |
Frequently Asked Questions
What is the TE Connectivity 1SNA125505R1000 used for?
The 1SNA125505R1000 is a screw-clamp disconnect terminal block designed for connecting, isolating and testing signal circuits in industrial control panels and automation systems.
How does the MA2.5/5.SNBTA disconnect a circuit?
The terminal block incorporates a blade disconnect mechanism that allows the electrical circuit to be opened for testing, commissioning or maintenance while the conductors remain terminated.
What are the IEC electrical ratings of the 1SNA125505R1000?
The terminal block has an IEC rated current of 10 A and an IEC rated voltage of 320 V.
What conductor sizes can the MA2.5/5.SNBTA accept?
The terminal has a nominal wire size of 2.5 mm² / 12 AWG and accepts flexible conductors from 0.5–2.5 mm² and rigid stranded conductors from 0.5–4 mm².
Which DIN rails are compatible with this terminal block?
The 1SNA125505R1000 can be mounted on G32, TH35-7.5 and TH35-15 DIN rails, making it suitable for a wide variety of industrial panel configurations.
Trusted by Industrial Panel Builders
TE Connectivity ENTRELEC SNA terminal blocks provide dependable and organised industrial wiring solutions, with the compact MA2.5/5.SNBTA offering convenient circuit isolation, secure screw-clamp termination and space-efficient DIN rail installation.
