Low-voltage switchgear and controlgear assemblies: Safety for designers, contractors and operators Quality according to ISO certification Proven safety Design verification with documentation

THE NEW STANDARD - for compliance with protection goals for personnel and plant protection EN / Content of standard EN/IEC 61439 èè Division into a general part and corresponding parts of the product (similar to standard IEC 60947) èè Classification of product parts, thus a clear assignment to the application is possible èè The design verification replaces TTA * and èè The interfaces of the switchgear assembly shall be designed as a „BLACK BOX“ èè The rated values have to be verified in relation to the application area of the switchgear and controlgear assembly and in regard to the protection...

The „BLACK BOX“ model of the switchgear assembly and the key interfaces Duties and responsibilities have been redefined Planning and production Based on the new standard, there are additional tasks and responsibilities for the manufacturer of a switchgear assembly. The standard contains additional requirements in regard to minimum values. However, deviating values may be agreed upon between the user and the manufacturer of the switchgear assembly on site. There are no definitions or rated values given in the standard. Requirements on a switchgear assembly R. STAHL as original manufacturer and...

Your benefit with R. STAHL switchgear and controlgear assemblies Explosion protection èè Compliance with the standards is ensured by the routine verification èè Routine verification is ensured by: - Testing - Calculation - Compliance with construction rules EN/IEC 60079 = Standards concerning explosion protection EN/IEC 61439 = Standards concerning low-voltage switchgear and controlgear assemblies PSC = Power switchgear and controlgear assemblies Original manufacturer and manufacturer – where does their responsibility end? R. STAHL as original manufacturer of the switchgear and controlgear assembly...