1. Construction
Using the BC-MUL®moulding technique and use of MIL.BOX® material, these enclosures are structurally solid and mechanically robust, due to their increased thickness.
They are particularly resistant to the main pollutants present in industrial environments.
The lever enclosure pegs are built into the enclosures.
The methods for fastening the connectors to the enclosures are made of M3 threaded metal inserts.
With reference to metal construction, which to comply with electrical installation safety norms, must be earthed via a metal connection to the grounding terminal of the inserts inside the enclosure, the new series of enclosures offers a solution for total insulation constructions (equivalent to class II) where necessary.
The thermoplastic material used is RAL 7012 dark grey colour and UL 94V-2 grade self-extinguishing and has passed glow wire testing in accordance with the IEC (EN) 60695-2-11 at 650 °C in compliance with intended uses.
2. Gaskets
Gaskets have been produced by means of the FIPFG technology (Formed-In-Place-Foam-Gasket).
They have therefore been incorporated in the base flange on bulkhead mounting housings for easier installation.
3. Levers
The locking levers have been produced in self-extinguishable thermoplastic material coloured grey RAL 7001.
4. Dimensions
The internal dimensions allow mounting of all connector inserts in their relevant sizes.
The external dimensions of the bulkhead mounting housings are similar to those of the corresponding metallic enclosures; hole fixing centres are unchanged.
Hoods offer an inner cabling space similar to that of the “high” construction models of the corresponding metal enclosures.
Other characteristics are in compliance with the applicable safety standard for electrical connectors, IEC/EN 61984.
5. Cable entries
The housing and hood cable entries are available with metric thread, respectively:
• M25 or M32 for smaller sizes “44.27” and “57.27”.
• 32 or M40 for larger sizes “77.27” and “104.27”.
The surface mounting, high construction housings are supplied with an open threaded entry and diametrically opposite a closed threaded entry which can be opened by the user if required (with suitable tool).
The recent standard IEC/EN 61076-7-100 regarding metric cable entries for multipole electrical connectors for heavy duty uses, which standardises some main dimensions for entries and their related accessories (gaskets, pressure nuts), have been carefully considered in the product design.
6. Markings
Each enclosure carries its own part number and conformity markings.
Interchangeability with other ILME series
TCH series housings can be coupled with metal hoods. Insulating hoods can be coupled with “V-Type” metal housings.
Hoods “57.27”, “77.27” and “104.07” can be mounted on COB TCQ and COB BC frames simply by replacing the supplied levers with COB L levers (to be purchased separately).
Insulating enclosures are ideal for mounting of all ILME inserts with the exception of series models CT 40/ 64 and CTS 40/ 64 connector.
Inserts with 45° terminals of the CTE series (screw-type terminals) and CTSE (spring terminals) are only insertable from the front (therefore not from the back) of the bulkhead mounting housings.
Being made by insulating material, they do not require a special reinforced insulation as metal ones do, for use with series CME higher voltage connector inserts (screw-type terminals).
With the exception of the limitations described below, it is generally possible to mount the MIXO series modular connectors and frames with the ground and screen anchors dedicated to this series.