M70/31.FF Entrelec Studded Power Terminal 70mm² Grey 1SNA115143R1200

The M70/31.FF (alternate code 1SNA115143R1200) is a 70mm² studded power terminal block from Entrelec, manufactured by TE Connectivity, rated at 150A and designed for high-current feedthrough applications in industrial electrical installations.

This grey feedthrough terminal block uses a dual M8 stud connection, making it ideal for connecting large-section power cables in control panels and distribution boards. Its robust stud technology ensures a secure, vibration-resistant connection capable of handling demanding industrial environments.

Key Features

• Dual M8 Stud Connection: Two M8 studs allow for reliable, high-torque connections using cable lugs, ensuring a stable and low-resistance joint under high-current conditions.
• 150A Current Rating: Supports up to 150A continuous current, making it suitable for heavy-duty power distribution circuits.
• Wide Cable Acceptance: Accepts rigid conductors from 2.5–70mm² and flexible conductors from 2.5–50mm², providing flexibility across a range of cable sizes and installation types.
• Rated to 1000V: Suitable for use in low voltage power systems up to 1000V AC/DC, with a rated short-time withstand current of 8000A for 1 second.
• Multi-Rail Mounting: Compatible with G32, TH35-7.5, and TH35-15 DIN rails, offering straightforward integration into standard control panel builds.
• Polyamide Insulation: High-quality polyamide housing provides excellent electrical insulation and mechanical durability across a wide temperature range of -55°C to +110°C.
• Lug Mounting Compliance: Cable lug mounting in accordance with NF C 20-130 and DIN 46234, with a tightening torque of 6 N·m for a consistent, reliable connection.
• Various Marking Options: Supports multiple marking methods for clear circuit identification within busy panel environments.

Applications

The M70/31.FF is well suited to industrial control panels, machine building, and power distribution assemblies where large-section cables must be terminated reliably. It is commonly used in manufacturing, process automation, and infrastructure installations where high-current busbar-style feedthrough connections are required on DIN rail systems.

Standards and Compliance

The M70/31.FF holds CE, cUL, and EAC certification, complies with RoHS (EU Directive 2011/65/EU), and meets IEC 60715 rail mounting standards.

Manufactured by TE Connectivity, country of origin Poland. Order code: M70/31.FF / 1SNA115143R1200.

Frequently Asked Questions

What cable sizes can be connected to the M70/31.FF?

The M70/31.FF accepts rigid conductors from 2.5–70mm² and flexible conductors from 2.5–50mm² per stud connection.

What DIN rails is the M70/31.FF compatible with?

It mounts on G32, TH35-7.5, and TH35-15 DIN rails in accordance with IEC 60715.

What is the correct tightening torque for the M70/31.FF cable lug connection?

The specified tightening torque is 6 N·m for cable lug connections.

How does the M70/31.FF differ from screw clamp terminal blocks?

Unlike screw clamp terminals which grip the conductor directly, the M70/31.FF uses M8 studs designed for cable lug terminations — making it the preferred choice for high-current applications where crimped lugs are used for a more robust, lower-resistance joint.

Where can I buy the M70/31.FF Entrelec Studded Power Terminal 70mm² Grey 1SNA115143R1200 in the UK?

The M70/31.FF is available from CSE Distributors, a trusted electrical and industrial product distributor with branches in Wooburn Green (South Bucks) and Eastleigh (Southampton), backed by over 50 years in business and hundreds of positive customer reviews.