Reliable Type 2 AC Surge Protection for Three-Phase Circuits
LY1-C40/3(S) is a three-pole pluggable Type 2 AC surge protective device designed for three-phase low-voltage distribution systems. Its high-energy MOV modules provide fast transient-voltage limitation with 20kA nominal discharge current and 40kA maximum discharge current, while the replaceable cartridge design simplifies inspection and maintenance.
Class II / Type 2 protection for three-phase AC systems
Three-pole design for coordinated multi-phase protection
Corriente de descarga nominal de 20kA y máxima de 40kA
Pluggable cartridges with visual indication and optional remote contact
Aplicaciones adecuadas
LY1-C40/3(S) is suitable for three-phase AC systems requiring modular Type 2 surge protection in distribution boards, industrial control panels, commercial buildings, and solar AC power systems.
Three-Phase Distribution Boards
For Type 2 surge protection in commercial and industrial three-phase distribution panels.
Paneles de Control Industriales
Suitable for machinery controls, factory automation, HVAC systems, and electrical equipment cabinets.
Edificios comerciales
Helps protect office buildings, retail facilities, and commercial electrical systems from transient overvoltage.
Solar Inverter AC Panels
For three-phase solar inverter AC-side panels when the selected Uc version matches the system voltage.
PREGUNTAS FRECUENTES
Common questions about LY1-C40/3(S) three-pole pluggable Type 2 AC surge protective device selection and installation.
¿Para qué se utiliza LY1-C40/3(S)?
LY1-C40/3(S) se utiliza para limitar la sobrevoltaje transitoria en sistemas de corriente alterna trifásicos de baja tensión. Es adecuado para tableros de distribución, armarios de control industrial, paneles de potencia de maquinaria y sistemas eléctricos comerciales.
¿Es LY1-C40/3(S) un SPD de Tipo 2?
Yes. LY1-C40/3(S) is classified as a Class II / Type 2 AC surge protective device. The incorrect Type 1CA wording should not be used.
¿Qué clasificaciones de corriente de descarga proporciona?
El SPD proporciona una corriente de descarga nominal In de 20kA y una corriente de descarga máxima Imax de 40kA. La tabla técnica también incluye un parámetro de corriente de impulso de 7kA.
¿Qué opciones de voltaje están disponibles?
Las opciones de voltaje de operación continua máxima incluyen 75V, 150V, 275V, 320V, 385V y 440V AC. Seleccione la versión correcta según el voltaje nominal del sistema.
¿Cuál es el beneficio del diseño modular?
Each cartridge can be inspected or replaced independently without removing the permanently wired base, reducing maintenance time and simplifying servicing.
¿Qué se debe confirmar antes de ordenar?
Confirm the nominal system voltage, required Uc and Up level, three-pole protection arrangement, 125A maximum backup-fuse coordination, conductor size, DIN-rail space, and remote-contact requirement.
