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Archive: Category «Low Voltage»

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Definitions from the Standard UL 489 (MCCB)

The requirements of this standard cover molded-case circuit breakers (MCCB), circuit breaker and ground-fault circuit-interrupters, fused circuit breakers, and accessory high-fault protectors. These circuit breakers are specifically intended to provide… Read more

Jul 12, 2012 | Edvard

Definitions from the Standard UL 489 (MCCB)

Assemblies of switchgear and control panels (3)

Continued from 2nd part of article: Assemblies of switchgear and control panels (part 2) Now coverage of distribution panels and switchboards will be presented including molded case circuit breakers (MCCB), safety… Read more

Jun 30, 2012 | Edvard

Assemblies of switchgear and control panels (3)

Assemblies of switchgear and control panels (2)

Continued from 1st part of article: Assemblies of switchgear and control panels (part 1) Other components that are needed for the proper operation of the switchgear or control panel but not necessarily… Read more

Jun 29, 2012 | Edvard

Assemblies of switchgear and control panels (2)

Assemblies of switchgear and control panels (1)

Switchgear and control panels are found in power generating stations, transformer stations, distribution substations, commercial and institutional buildings, industrial plants and factories, refineries, paper mills, metal smelters and any other… Read more

Jun 28, 2012 | Edvard

Assemblies of switchgear and control panels

MCB – Miniature Circuit Breaker Construction

The miniature circuit breaker (MCB) plays an important role in providing overcurrent protection and a disconnect means in electrical networks. Recent advancements in circuit breaker technology has increased breaker performance and protection. A… Read more

Jun 07, 2012 | Edvard

MCB - Miniature circuit breaker construction

Types of Residual Current Devices (RCD)

For domestic applications only the first five of the below listed residual current devices (RCD) need to be considered. For industrial and commercial buildings all of the classifications need to be… Read more

May 03, 2012 | Edvard

Residual current device 30mA - SIEMENS
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