TE Connectivity 1SNA400772R1300 D70/22.P is a 70 mm² green/yellow screw-clamp ground terminal block for TH35-15 DIN rail mounting, designed for reliable protective-earth connections in demanding industrial power applications.
£37.08
The TE Connectivity D70/22.P, part number 1SNA400772R1300, is a heavy-duty ground / protective earth screw-clamp terminal block designed for secure earthing connections in industrial control panels, power distribution assemblies and electrical equipment. Part of the proven ENTRELEC SNA terminal block range, it combines a large conductor capacity with robust DIN rail mounting for demanding power applications.
Finished in the internationally recognised green and yellow protective-earth colour scheme, the D70/22.P provides clear circuit identification and a reliable electrical and mechanical connection to the mounting rail. Its screw-terminal connection system accommodates large conductors while providing the high clamping force required for dependable industrial installations.
With a nominal conductor size of 70 mm², the D70/22.P accepts flexible conductors from 16–70 mm² and rigid stranded conductors from 16–95 mm². It provides a short-time withstand current rating of 8400 A for 1 second and an impulse withstand voltage of 8000 V, making it well suited to high-capacity protective-earth circuits.
Protective-earth terminal blocks provide a dedicated connection between electrical conductors and the equipment grounding system. The D70/22.P is designed to establish reliable electrical and mechanical contact with the DIN rail, providing an effective earth path while its green/yellow housing makes the protective-earth circuit immediately identifiable during installation and maintenance.
The combination of large conductor capacity, high short-circuit withstand performance and robust screw-clamp technology makes the D70/22.P particularly suitable for industrial power distribution and machinery installations. Its 22 mm width provides the space required for terminating substantial earth conductors while maintaining a modular DIN rail installation format.
| Manufacturer | TE Connectivity / ENTRELEC |
|---|---|
| Series | SNA Series |
| Model | D70/22.P |
| Part number | 1SNA400772R1300 |
| Product type | Screw-clamp ground terminal block |
| Block function | Ground / protective earth |
| Termination method | Screw terminal |
| Nominal wire size | 70 mm² |
| Flexible conductor capacity | 16–70 mm² |
| Rigid stranded conductor capacity | 16–95 mm² |
| Rigid stranded conductor range | 4–00 AWG |
| Short-time withstand current (1 s) | 8400 A |
| Dielectric withstand voltage | 2200 V |
| Impulse withstand voltage | 8000 V |
| Tightening torque (IEC) | 6 N·m |
| Wire stripping length | 25 mm |
| Recommended tool size | 6 mm |
| Product spacing | 22 mm |
| Colour | Green / yellow |
| Housing material | Polyamide 6.6 |
| Flammability rating | UL 94 V-0 |
| Ingress protection | IP10 at main terminals |
| Mounting | DIN rail |
| Compatible DIN rail | TH35-15 (35 × 15 mm) |
| Operating temperature range | -55 to 110 °C |
| Dimensions (H × W × D) | 74 × 22 × 68.8 mm |
| Product weight | 222 g |
The D70/22.P is a protective-earth DIN rail terminal block designed for terminating large-section grounding conductors in industrial control panels, power distribution equipment and machinery.
The terminal accepts flexible conductors from 16–70 mm² and rigid stranded conductors from 16–95 mm².
The D70/22.P has a short-time withstand current rating of 8400 A for 1 second, supporting demanding protective-earth applications.
The terminal block is designed for mounting on a TH35-15 (35 × 15 mm) DIN rail in accordance with standard industrial panel construction practices.
The green/yellow colour scheme identifies the terminal as a protective-earth or ground connection, helping installers and maintenance personnel distinguish it from standard feed-through and neutral terminals.
TE Connectivity ENTRELEC SNA ground terminal blocks provide robust, clearly identified protective-earth connections for industrial electrical systems, with the D70/22.P offering high conductor capacity and dependable screw-clamp termination for demanding power applications.
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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...