D70/22 Entrelec Feedthrough Terminal 70mm² Grey 1SNA400305R1000

The D70/22 (order code 1SNA400305R1000) is an Entrelec feedthrough terminal block manufactured by TE Connectivity, rated at 192 A and designed for heavy-duty screw clamp connections up to 70 mm² flexible or 95 mm² rigid conductors.

The Entrelec D70/22 is a 70 mm² grey screw clamp feedthrough terminal block from the SNA Series, designed for high-current applications in industrial control panels and switchgear. Mounting on TH35 DIN rail, it provides a reliable, vibration-resistant connection suitable for demanding electrical installations. Its closed terminal block design eliminates the need for a separate end section, improving rigidity and simplifying assembly.

Key Features

• 192 A current rating: Handles high-current circuits confidently, making it suitable for heavy industrial loads.
• Dual conductor capacity: Accepts up to two rigid or flexible conductors per clamp (25–35 mm²), offering wiring flexibility within the cabinet.
• Screw clamp connection with anti-release system: TE Connectivity's exclusive overlapping tab design locks the screw securely, resisting loosening from vibration or shock without the need for retightening campaigns.
• Closed terminal block design: No end section required, optimising rigidity and reducing component count during rail assembly.
• 1000 V rated voltage: Suitable for a wide range of industrial power and control applications.
• IP20 protection: Provides finger protection against contact with live parts, in line with IEC 60529.
• Universal DIN rail mounting: Compatible with both TH35-7.5 and TH35-15 rails per IEC 60715, providing installation flexibility.
• UL 94V-0 flammability rating: Polyamide 6.6 housing meets stringent fire resistance requirements for panel-building environments.

Applications

The D70/22 is well suited to industrial switchgear, motor control centres, power distribution panels, and large electrical enclosures where high-current terminations are required. It is commonly used across manufacturing, energy, infrastructure, and process automation sectors where robust, reliable connections for large-section cables are essential.

Standards & Compliance

The D70/22 holds CE, CB, cUL, CSA, and EAC certifications, complies with IEC 60947-1 and IEC 60529, and meets RoHS environmental requirements.

Manufactured by TE Connectivity, made in Poland. Order code: D70/22 / 1SNA400305R1000.

Frequently Asked Questions

What cable sizes are compatible with the D70/22?

The D70/22 accepts a single flexible conductor of 16–70 mm² or a single rigid conductor of 16–95 mm² per clamp. It also accepts two conductors per clamp at 25–35 mm² (rigid or flexible).

What DIN rail types does the D70/22 mount on?

It mounts on TH35-7.5 and TH35-15 symmetrical DIN rails in accordance with IEC 60715.

What is the recommended tightening torque for the D70/22?

IEC 60947-1 specifies 6 N·m; the manufacturer recommends 7 N·m. Use a 6 mm flat-head screwdriver.

How does the D70/22 differ from smaller terminals in the same series?

The D70/22 is designed for heavy-duty, high-current applications at 192 A, with a 22 mm pitch and closed block construction — significantly larger than standard control-circuit terminals. Smaller terminals in the range, such as the M4/6 or M10/10, are intended for lower current, smaller cross-section conductors.

Where can I buy the D70/22 Entrelec Feedthrough Terminal 70mm² Grey 1SNA400305R1000 in the UK?

The D70/22 is available from CSE Distributors, a specialist electrical and industrial distributor with branches in Wooburn Green (South Bucks) and Eastleigh (Southampton), backed by over 50 years in business and hundreds of positive customer reviews.