Término solicitado: CONTACTORES ELEECTRICOS/(265,65,175)
1 Registro/s encontrado/s en CAT+NORMA
| Tipo de documento: | NORMA |
| Título: | LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 4-1: CONTACTORS AND MOTOR-STARTERS - ELECTROMECHANICAL CONTACTORS AND MOTOR-STARTERS |
| Código de Doc.: | IEC 60947-4-1 |
| Autor Inst.: | International Electrotechnical Commission. IEC/CEI |
| Fecha: | 2009 |
| Estado: | |
| Objeto: | This part of IEC 60947 applies to the types of equipment listed in 1.1 and 1.2 whose main contacts are intended to be connected to circuits the rated voltage of which does not exceed 1 000 V a.c. or 1 500 V d.c.; Starters and/or contactors dealt with in this standard are not normally designed to interrupt short-circuit currents. Therefore, suitable short-circuit protection (see 9.3.4) shall form part of the installation but not necessarily of the contactor or the starter. In this context, this standard gives requirements for: - contactors associated with overload and/or short-circuit protective devices; starters associated with separate short-circuit protective devices and/or with separate short-circuit and integrated overload protective devices; - contactors or starters combined, under specified conditions, with their own short-circuit protective devices. Such combinations, e.g. combination starters (see 3.2.7) or protected starters (see 3.2.8) are rated as units. Circuit-breakers and use-combination units used as short-circuit protective devices in combination starters and in protected starters shall comply with the equirements of IEC 60947-2 and IEC 60947-3, as the case may be. Equipment covered by this standard is as follows.AC and d.c. contactors AC and d.c.contactors intended for closing and opening electric circuits and, if combined with suitable relays (see 1.2), for protecting these circuits against operating overloads which may occur therein |
| Campo de Aplic.: | This standard applies also to starters for two directions of rotation when reversal of connections is made with the motor stopped (see 5.3.5.5). Operations including inching and plugging necessitate additional requirements and shall be subject to agreement between manufacturer and user |
| Relac. con otras Normas: | IEC 60034-1; IEC 60085; IEC 60300-3-5; IEC 60410; IEC 60947-1; IEC 60947-2; IEC 60947-3; IEC 60947-5; IEC 61000-4-2; IEC 61000-4-3; IEC 61000-4-4; IEC 61000-4-5; IEC 61000-4-6; IEC 61439-1; IEC 61508; IEC 61511; IEC 61649; IEC 61810-1; CISPR 11; ISO 13849-1 |
| ICS: | 29.120.99 Other electrical accessories; 29.130.20 Low voltage switchgear and controlgear |
| Otros Códigos: | ISBN 2-8318-1058-9 |
| Idioma: | en |
| Título en otro Idioma: | Appareillage à basse tension - Partie 4-1: Contacteurs et démarreurs de moteurs - Contacteurs et démarreurs électromécaniques |
| Edición: | 3.0 edition |
| Palabras Clave: | Controladores eléctricos; Contactores eléectricos; Arrancadores; Motores eléctricos; Baja tensión; Tensión; Seguridad eléctrica; Protección; Equipos de control; Instalaciones eléctricas; Puesta a tierra |
| Páginas: | 122p. |
| Ingreso de la Info.: | 2010-09-29 |
Fin
[Página de Inicio] [Nueva Búsqueda][Página Anterior]