Enclosure Mechanical impact resistance

Mechanical impact resistance An additional number has sometimes been used to specify the resistance of equipment to mechanical impact. This mechanical impact is identified by the energy needed to qualify a specified resistance level, which is measured in joules (J). This has now been superseded by the separate IK number specified in EN 50102. Although dropped from the 3rd edition of IEC 60529...

Type Test required for ASTA certification TTA

Type test will be carried out on a sample of such an ASSEMBLY or on such parts os ASSEMBLIES manufactured to the same or similar design. Type tests include the following: verification of temparature rose limits (8.2.1) verification of the dielectric properties (8.2.2) verification of...

Testing to DIN EN 60439-1

For a safety function of low-voltage switchgear com binations it is necessary to match the different features of the individual components - the technical details to be considered are described in standard IN EN 60439-1(“Low-voltage switchgear combinations; part 1: Type-tested and partially type-tested assemblies“). The proof of requirements for fulfilling the basic legal principles for low-voltage...

Type-tested (TTA) and Partially type-tested assemblies (PTTA)

Type-tested assemblies (TTA) No.   Requirement to be tested TTA 1 Overtemperature limit Proof of overtemperature limit by testing (type testing) 2 Insulation Proof of insulation by testing 3 Short-circuit resistance Proof of short-circuit resistance by testing (type testing) 4 Effectiveness...

NEMA Enclosure Types

The purpose of this document is to provide general information on the definitions of NEMA Enclosure Types to architects, engineers, installers, inspectors and other interested parties.  [For more detailed and complete information, NEMA Standards Publication...

Index of Protection - IP rating of Enclosure

Specification for degrees of protection provided by enclosures. The IP number consists of two numbers, the first of which describes the protection against solid bodies, and the second describes the protection given against liquids. 1st IP number Protection...

IEC 60439-1 / EN 60439-1

Type-tested low-voltage switchgear and controlgear assembly (TTA) A low-voltage switchgear and controlgear assembly conforming to an established type or system without deviations likely to significantly influence the performance, from the typical ASSEMBLY verified to be in accordance with this standard. IEC 60439-1 / EN 60439-1;2.1.1.1. Partially type-tested low-voltage...

What is the Electrical Panel?

An electrical enclosure is a cabinet for electrical or electronic equipment to mount switches, knobs and displays and to prevent electrical shock to equipment users and protect the contents from the environment. The enclosure is the only part of the equipment which is seen by users; in many cases it...