Proteção contra Surto Tipo 2+3 CA Compacta para Sistemas 3P+N
LY1-D20/3(S)+1 is a compact 3P+N pluggable Type 2+3 AC surge protective device for three-phase plus neutral systems. Its coordinated MOV and GDT structure provides L-N and N-PE protection with 10kA nominal discharge current and 20kA maximum discharge current for downstream and final-distribution applications.
Class II+III / Type 2+3 protection for downstream AC circuits
3P+N configuration with L-N and N-PE protection
Coordinated MOV and GDT surge-protection technology
Módulos pluggable com indicação visual e contato remoto opcional
Aplicações Adequadas
LY1-D20/3(S)+1 is suitable for three-phase plus neutral systems requiring coordinated Type 2+3 surge protection close to downstream equipment and final distribution circuits.
Quadros de sub-distribuição
For downstream protection in commercial and industrial three-phase plus neutral distribution boards.
Painéis de Controle Industrial
Suitable for machinery controls, automation cabinets, HVAC panels, and production equipment.
Instalações Comerciais
Helps protect office buildings, retail systems, building controls, and sensitive commercial loads.
Painéis de Inversores Solares CA
For three-phase solar inverter AC-side panels when the selected Uc rating matches the system voltage.
FAQ
Common questions about LY1-D20/3(S)+1 compact 3P+N pluggable Type 2+3 AC surge protective device selection.
What is LY1-D20/3(S)+1 used for?
LY1-D20/3(S)+1 is used for downstream and final-distribution surge protection in three-phase plus neutral AC systems. It helps limit transient overvoltage through coordinated L-N and N-PE protection paths.
O que significa 3P+N?
3P+N means the SPD is designed for three phase conductors plus neutral, with MOV protection on the L-N paths and a GDT protection path between N-PE.
Is LY1-D20/3(S)+1 a Type 2 or Type 3 SPD?
LY1-D20/3(S)+1 is classified as Class II+III / Type 2+3, making it suitable for coordinated downstream and final-distribution surge protection.
What protection technology does it use?
It combines high-energy MOV protection on the L-N paths with a GDT on the N-PE path, providing coordinated surge protection for three-phase plus neutral systems.
Quais são as classificações de corrente de descarga que ele fornece?
It provides 10kA nominal discharge current and 20kA maximum discharge current on both the L-N and N-PE protection paths.
O que deve ser confirmado antes de fazer o pedido?
Confirm the nominal L-N voltage, required Uc and Up level, 3P+N wiring arrangement, 125A maximum backup-fuse coordination, conductor size, DIN-rail space, and optional remote-contact requirement.
