TE Connectivity 1SNA115495R0400 M4/6.SNBT23 is a 6 mm ENTRELEC SNA screw-clamp disconnect terminal block with two built-in test sockets, rated at 20 A and 400 V IEC for industrial signal and control circuits.
£4.03
The TE Connectivity M4/6.SNBT23 1SNA115495R0400 is a compact screw-clamp disconnect terminal block with integrated test sockets designed for signal circuits, testing and isolation within industrial electrical control systems. Part of the established ENTRELEC SNA series, it combines dependable screw termination with a blade disconnect mechanism for convenient circuit separation during commissioning, maintenance and troubleshooting.
The M4/6.SNBT23 provides two built-in test sockets, allowing convenient electrical testing without disturbing the connected conductors. Its disconnect blade can be operated by hand or with a screwdriver, providing a straightforward method of isolating a circuit while maintaining organised DIN rail wiring. The terminal block has a compact 6 mm spacing and accommodates conductors up to 4 mm² / 10 AWG.
Rated at 20 A and 400 V to IEC specifications, the 1SNA115495R0400 is suitable for industrial signal and control applications. Its beige and orange polyamide 6.6 housing, DIN rail compatibility and compact single-level construction make it well suited to densely populated control cabinets, instrumentation panels and automation systems.
Disconnect terminal blocks provide an efficient way to isolate individual circuits without removing wiring from the terminal. The M4/6.SNBT23 uses an accessible blade disconnect that can be operated manually or with a screwdriver, making routine testing, commissioning and fault diagnosis quicker while helping maintain orderly control-panel wiring.
The two integrated test sockets provide dedicated access points for measurement equipment, helping technicians perform electrical checks without disrupting conductor terminations. Combined with screw-clamp connections and multi-standard DIN rail mounting, this makes the ENTRELEC SNA terminal block a practical choice for industrial automation, instrumentation and signal distribution systems.
| Manufacturer | TE Connectivity / ENTRELEC |
|---|---|
| Series | ENTRELEC SNA |
| Model | M4/6.SNBT23 |
| Part number | 1SNA115495R0400 |
| Product type | Screw-clamp disconnect terminal block |
| Block function | Disconnect |
| Number of circuits | 1 |
| Number of poles | 2 |
| Number of positions | 2 |
| Number of levels | 1 |
| Rated current (IEC) | 20 A |
| Rated voltage (IEC) | 400 V |
| Impulse withstand voltage (IEC) | 4000 V |
| Short-time withstand current, 1 s | 300 A |
| Current rating (UL) | 10 A |
| Current rating (CSA) | 15 A |
| Voltage rating (CSA) | 600 V |
| Conductor capacity | 0.5–4 mm² |
| Maximum wire size | 10 AWG / 4 mm² |
| Termination method | Screw terminal |
| Disconnect type | Blade |
| DIN rail mounting | G32, TH35-15 and TH35-7.5 |
| Product spacing / width | 6 mm |
| Dimensions (H × W × D) | 44.5 × 6 × 44.5 mm |
| Wire stripping length | 9.5 mm |
| Tightening torque | 0.5 Nm |
| Housing material | Polyamide 6.6 |
| Colour | Beige / orange |
| Protection rating | IP20 |
| UL flammability rating | UL 94V-0 |
| Operating temperature range | -55 to +110 °C |
| Installation temperature range | -5 to +40 °C |
| Product weight | 11 g |
It is a DIN rail disconnect terminal block designed for connecting, isolating and testing signal circuits in industrial control, automation and instrumentation systems.
The terminal block is rated at 20 A and 400 V according to IEC specifications.
It accommodates conductors from 0.5–4 mm², with a maximum specified wire size of 10 AWG.
Yes. The terminal block incorporates two built-in test sockets, allowing convenient electrical testing and diagnostic measurements.
The terminal block is designed for mounting on G32, TH35-15 and TH35-7.5 DIN rails, providing flexibility for industrial panel installations.
TE Connectivity ENTRELEC SNA terminal blocks provide dependable connection, isolation and testing solutions for industrial control panels, helping panel builders and automation engineers create organised, serviceable and reliable electrical systems.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...