Keying system for DIN 41612 connectors

February 2003 Enclosures, Cabling & Connectors

Inevitably when a control panel goes up in flames due to an expensive PCB card being inserted into the wrong socket the call goes out for a keying (coding) system to prevent this. Unfortunately a coding system for DIN 41612 connectors has not yet been established.

Ideally such a coding system should: be independent of connector type; fit all commercially available DIN 41612 connectors; be simple (may be retrofitted) and realistically priced; and offer numerous combinations to prevent different cards from having to use the same combination code.

Erni has developed a coding system for DIN 41612 types B, C, D, E, H11, M, Q and R connectors. This coding system is bolted or riveted to the connectors and can therefore be fitted at any time - even if coding is required after the initial design.

Coding is very simple. Coding bars are broken off without the use of tools while a simple tool is available for mass production if desired. It is important that any coding system does not increase the spacing required between PCB Cards beyond the Standard 5,08 mm. The Erni coding system with the connector is 15.4 mm for B, C, D, H11, M, Q and R connectors and 20,32 mm for E connectors.

Benefits of this coding system include: independence of connector type; an incorrectly inserted coded card will withstand a pressure of 250 N; space (width) requirements are static; it has 12780 coding possibilities; it is suitable for existing types and applications; and it may be fitted without modifications of connectors or drilling of holes and may be retrofitted.

Further reading:

Cables and wires for food and beverage
LAPP Southern Africa Enclosures, Cabling & Connectors
The strict hygiene regulations for handling foodstuffs stipulate particularly complex requirements for electrical components. The cables and accessories used must withstand a wide range of chemical, thermal and mechanical loads, and also function perfectly at all times in refrigerated and damp rooms.

Read more...

---

Cable protection for longer runs
igus Enclosures, Cabling & Connectors
Polymer energy chain manufacturer, igus has introduced a new lighter weight e-chain for cable management and protection applications with large unsupported lengths and high fill weights. This was previously the domain of larger, more expensive energy chains.

Read more...

---

Robust Ethernet cordset series of cables
Turck Banner Southern Africa Enclosures, Cabling & Connectors
Turck Banner offers a product range comprising a wealth of different connectors and cables, including over 115 000 connection technology solutions with differing degrees of complexity.

Read more...

---

Panel building should be streamlined
Schneider Electric South Africa Enclosures, Cabling & Connectors
Data centres run critical applications, and require equipment and infrastructure that operate at 100% uptime, as any downtime due to faulty components could have catastrophic ramifications.

Read more...

---

Robust Ethernet series of cables and connectors for industrial protection
Turck Banner Southern Africa Enclosures, Cabling & Connectors
Turck Banner offers a product range comprising a wealth of different connectors and cables, including over 115 000 connection technology solutions with differing degrees of complexity.

Read more...

---

UV-resistant enclosures
Communica Enclosures, Cabling & Connectors
Hammond Manufacturing has a range of glass-reinforced polyester (GRP) enclosures which are lightweight, corrosion resistant, and also UV-resistant.

Read more...

---

Secure fastening in high-vibration applications
Bearing Man Group t/a BMG Enclosures, Cabling & Connectors
Vibration and shock can quickly impair joint integrity, and negatively affect overall product performance, especially in demanding applications in sugar mills like vibrating screens. BMG’s Lock Bolt pins and collars, which are designed to replace bolted and welded joints, provide high strength, vibration-resistant fastening that reduces downtime and improves safety standards by removing sheet gap and maintaining tension over time.

Read more...

---

Ready made cables are revolutionising drive applications
Enclosures, Cabling & Connectors
Innovative manufacturer of motion plastics, igus, has emerged as a trailblazer in the world of drive applications, with the introduction of a full range of ready to use cabling solutions to fit all commonly used drive systems.

Read more...

---

Powering the Perforex machine
Rittal Enclosures, Cabling & Connectors
Following its acquisition of a Perforex machine, Rittal South Africa has partnered with Rubicon Group to secure a backup power solution that will ensure the machine’s uninterrupted operation.

Read more...

---

Ultra-rugged connectors enhance IIoT connectivity
Spectrum Concepts Enclosures, Cabling & Connectors
Fischer Connectors has released ultra-robust Single Pair Ethernet (SPE) and USB 3.2 Gen 2 connectivity solutions to meet the specific requirements of IIoT applications in rugged environments.

Read more...

---