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1sna115491r0000 – ma2,5/5.d2.1 d/deck 5mm grey
TE Connectivity 1SNA115491R0000 MA2.5/5.D2.1 is a grey 2.5 mm² double-deck screw-clamp feed-through terminal block providing two independent signal circuits in a compact 5 mm DIN rail footprint with IEC ratings of 24 A and 630 V.
£2.05
Why Choose the TE Connectivity MA2.5/5.D2.1 Double-Deck Terminal Block?
The TE Connectivity 1SNA115491R0000 MA2.5/5.D2.1 is a compact 2.5 mm² double-deck feed-through terminal block designed for high-density signal wiring in industrial control panels, machinery and automation systems. Part of the established ENTRELEC SNA series, it combines two independent electrical circuits within a narrow 5 mm-wide DIN rail terminal.
The MA2.5/5.D2.1 provides two levels, two circuits and four poles, allowing two separate feed-through connections to occupy a single compact terminal footprint. Proven screw-clamp termination provides secure conductor connections, while the double-deck configuration helps panel builders increase wiring density without sacrificing circuit organisation or accessibility.
With an IEC current rating of 24 A and an IEC voltage rating of 630 V AC, the MA2.5/5.D2.1 provides dependable electrical performance for industrial signal applications. It accepts a nominal conductor size of 2.5 mm² / 12 AWG, mounts on G32, TH35-15 and TH35-7.5 DIN rails, and features a durable grey polyamide 6.6 housing with IP20 protection.
Key Advantages
- Double-deck construction provides two independent circuits within a compact terminal footprint.
- Only 5 mm wide, helping maximise wiring density on the DIN rail.
- 2.5 mm² / 12 AWG nominal conductor size for common industrial signal wiring.
- 24 A and 630 V AC IEC ratings provide dependable electrical performance.
- Reliable screw-clamp termination provides secure conductor connections.
- Compatible with G32, TH35-15 and TH35-7.5 DIN rails for flexible panel installation.
Key Features
- TE Connectivity / ENTRELEC SNA series.
- MA2.5/5.D2.1 double-deck feed-through terminal block.
- Two independent circuits across two connection levels.
- Two positions and four poles.
- 5 mm product spacing for high-density terminal assemblies.
- 24 A IEC current rating.
- 630 V AC IEC operating voltage.
- 300 A short-time withstand current for 1 s.
- Grey polyamide 6.6 housing with UL 94V-0 flammability rating.
- IP20 protection rating for the main terminals.
Space-Saving Connections for Industrial Control Systems
Double-deck feed-through terminal blocks allow two independent circuits to be connected within the footprint of a single narrow DIN rail terminal. The TE Connectivity MA2.5/5.D2.1 uses two separate connection levels to increase terminal density, making it particularly useful in control cabinets where large numbers of signal conductors must be terminated within limited panel space.
Its screw-clamp terminals provide durable electrical and mechanical conductor connections, while the 5 mm width enables compact terminal strip layouts. Compatibility with several standard DIN rail profiles makes the MA2.5/5.D2.1 straightforward to integrate into industrial automation, instrumentation, machinery and process control installations.
Typical Applications
- Industrial electrical control panels.
- PLC input and output wiring.
- High-density signal terminal assemblies.
- Machine control and factory automation systems.
- Instrumentation and process control panels.
- OEM machinery and electrical panel building.
Technical Specifications
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| Number of Levels | 2 | |
|---|---|---|
| Product Series | TE SNA | |
| Connection | IDC (ADO) | |
| Terminal Type | Multi-level | |
| Conductor Size | 2.5 mm² | |
| Colour | Grey | |
| Manufacturer | TE Connectivity / ENTRELEC | |
| Series | ENTRELEC SNA | |
| Model | MA2.5/5.D2.1 | |
| Part number | 1SNA115491R0000 | |
| Product type | Screw-clamp double-deck terminal block | |
| Block function | Feed-through | |
| Circuit application | Signal | |
| Number of positions | 2 | |
| Number of circuits | 2 | |
| Number of poles | 4 | |
| Number of levels | 2 | |
| Gauge type | A3 | |
| Nominal wire size | 2.5 mm² | |
| Wire size | 12 AWG | |
| Flexible conductor capacity | 0.22–2.5 mm² | |
| Rigid stranded conductor capacity | 0.2–4 mm² | |
| IEC current rating | 24 A | |
| UL current rating | 20 A | |
| CSA current rating | 25 A | |
| IEC voltage rating | 630 V | |
| UL / CSA maximum operating voltage | 300 V | |
| Short-time withstand current at 1 s | 300 A | |
| Dielectric withstand voltage | 2500 V | |
| IEC impulse withstand voltage | 8000 V | |
| Termination method | Screw terminal | |
| Tightening torque | 0.4 N·m | |
| Wire stripping length | 9 mm | |
| Tool size | 3.5 mm | |
| Product spacing | 5 mm | |
| Housing material | Polyamide 6.6 | |
| Colour | Grey | |
| Mounting type | DIN rail | |
| DIN rail compatibility | G32, TH35-15 and TH35-7.5 | |
| Dimensions (H × W × D) | 65.5 × 5 × 52 mm | |
| Product weight | 15 g | |
| Operating temperature range | -55 to +110 °C | |
| Installation temperature range | -5 to +40 °C | |
| Protection rating | IP20 | |
| Flammability rating | UL 94V-0 |
Frequently Asked Questions
What is the TE Connectivity 1SNA115491R0000 used for?
The 1SNA115491R0000 MA2.5/5.D2.1 is a double-deck feed-through terminal block designed to terminate two independent signal circuits within a compact DIN rail footprint in industrial control and automation systems.
How many circuits does the MA2.5/5.D2.1 provide?
The MA2.5/5.D2.1 provides two independent circuits across two levels, with two positions and four poles in total.
What are the IEC electrical ratings of the MA2.5/5.D2.1?
The terminal block has an IEC current rating of 24 A and an IEC voltage rating of 630 V.
What conductor sizes can the 1SNA115491R0000 accommodate?
The terminal has a nominal conductor size of 2.5 mm² / 12 AWG, accepting flexible conductors from 0.22–2.5 mm² and rigid stranded conductors from 0.2–4 mm².
Which DIN rails are compatible with the MA2.5/5.D2.1?
The MA2.5/5.D2.1 can be mounted on G32, TH35-15 and TH35-7.5 DIN rails, providing flexible installation in industrial control cabinets and terminal assemblies.
Trusted by Industrial Panel Builders Worldwide
TE Connectivity ENTRELEC SNA double-deck terminal blocks provide compact and dependable conductor connections for industrial control panels, machinery and automation equipment, helping panel builders maximise wiring density while maintaining organised and serviceable installations.
