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1sna400320r1200 – ma2,5/5.snbt
TE Connectivity 1SNA400320R1200 MA2.5/5.SNBT is a 5 mm screw-clamp disconnect terminal block with two integrated test sockets, rated at 10 A and 320 V for industrial control, testing and measurement circuits.
£2.75
Why Choose the TE Connectivity MA2.5/5.SNBT Disconnect Terminal Block?
The TE Connectivity MA2.5/5.SNBT, part number 1SNA400320R1200, is a compact screw-clamp disconnect terminal block with integrated test sockets designed for control, measurement and industrial electrical circuits. Part of the established ENTRELEC SNA screw-clamp terminal block range, it combines dependable conductor termination with convenient circuit isolation and testing in a narrow DIN rail-mounted format.
The MA2.5/5.SNBT incorporates a disconnect blade that can be operated by hand or with a screwdriver, allowing circuits to be conveniently opened for testing, commissioning and maintenance. Two built-in test sockets further simplify electrical measurement procedures without requiring the wiring to be disturbed.
With a rated current of 10 A, rated voltage of 320 V and a compact 5 mm spacing, this terminal block is well suited to densely populated control panels. Its screw-clamp connections accept flexible conductors from 0.5–2.5 mm² and rigid conductors up to 4 mm², providing a versatile connection solution for industrial wiring.
Key Advantages
- Compact disconnect terminal block with screw-clamp connections.
- Integrated disconnect blade simplifies circuit isolation and maintenance.
- Two built-in test sockets support convenient electrical testing.
- 10 A rated current and 320 V rated voltage.
- Compact 5 mm spacing supports high-density control panel installations.
- Compatible with common TH35 and G32 DIN rail formats.
Key Features
- TE Connectivity / ENTRELEC MA2.5/5.SNBT terminal block.
- Disconnect function with blade.
- Two integrated test sockets.
- Screw-clamp conductor connections.
- 2.5 mm² rated cross-section.
- 10 A rated current.
- 320 V rated voltage.
- 4000 V rated impulse withstand voltage.
- 120 A short-time withstand current for 1 second.
- Single-level design with two clamping positions.
- Blue insulating body with orange disconnect component.
Convenient Circuit Isolation and Electrical Testing
Disconnect terminal blocks provide a practical means of opening an electrical circuit without removing connected conductors. The MA2.5/5.SNBT uses an accessible disconnect blade that can be operated manually or with a screwdriver, helping technicians isolate circuits efficiently during commissioning, diagnostics and routine maintenance.
Its two integrated test sockets provide convenient access for measurement equipment, while the screw-clamp connections deliver secure conductor retention. The terminal block also shares the profile of the MA2.5/5 feed-through terminal block, supporting aligned marking and consistent terminal assembly layouts.
Typical Applications
- Industrial control and automation panels.
- Measurement and instrumentation circuits.
- Electrical testing and commissioning systems.
- Machine control wiring.
- Signal and control circuit isolation.
- DIN rail terminal assemblies.
Technical Specifications
Tick the specs you need, then view products that match.
| Number of Levels | 1 | |
|---|---|---|
| Connection | IDC (ADO) | |
| Terminal Type | Disconnect / Test | |
| Conductor Size | 2.5 mm² | |
| Product Series | TE SNA | |
| Colour | Blue | |
| Manufacturer | TE Connectivity / ENTRELEC | |
| Series | SNA Screw Clamp | |
| Model | MA2.5/5.SNBT | |
| Part number | 1SNA400320R1200 | |
| Product type | Disconnect terminal block with test sockets | |
| Function | Disconnect | |
| Connection technology | Screw clamp | |
| Rated cross-section | 2.5 mm² | |
| Rated current | 10 A | |
| Rated voltage | 320 V | |
| Rated impulse withstand voltage | 4000 V | |
| Short-time withstand current (1 s) | 120 A | |
| Flexible conductor capacity | 0.5–2.5 mm² | |
| Rigid conductor capacity | up to 4 mm² | |
| Wire stripping length | 10 mm | |
| Number of levels | 1 | |
| Clamping positions per level | 2 | |
| Integrated test sockets | 2 | |
| Spacing / width | 5 mm | |
| Height | 44.5 mm | |
| Depth | 44.5 mm | |
| Product net weight | 11 g | |
| Colour | Blue / orange | |
| Protection rating | IP10 at main terminals | |
| Operating temperature | -55 to 110 °C | |
| Mounting | DIN rail | |
| Compatible rails | TH35-7.5, TH35-15 and G32 |
Frequently Asked Questions
What is the TE Connectivity MA2.5/5.SNBT used for?
The MA2.5/5.SNBT is a DIN rail disconnect terminal block used for conductor termination, circuit isolation and electrical testing in industrial control and measurement systems.
What are the electrical ratings of the MA2.5/5.SNBT?
The terminal block has a rated current of 10 A, a rated voltage of 320 V and a rated impulse withstand voltage of 4000 V.
Does the MA2.5/5.SNBT include test sockets?
Yes. The terminal block incorporates two built-in test sockets to make electrical testing and measurement more convenient.
How is the circuit disconnected?
The MA2.5/5.SNBT incorporates a disconnect blade that can be operated by hand or with a screwdriver, allowing the circuit to be opened without removing the connected conductors.
What conductor sizes can the MA2.5/5.SNBT accept?
The screw-clamp connections accommodate flexible conductors from 0.5–2.5 mm² and rigid conductors up to 4 mm².
Trusted Connectivity for Industrial Control Systems
TE Connectivity ENTRELEC SNA screw-clamp terminal blocks provide dependable, space-efficient wiring solutions for industrial control panels, with the MA2.5/5.SNBT adding convenient circuit isolation and integrated test access for commissioning and maintenance applications.
