Proteção contra Surto Tipo 2+3 CA Compacta para Sistemas 3P+N
LY1-D20M/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 surge protection with 10kA nominal discharge current and 20kA maximum discharge current.
Class II+III / Type 2+3 downstream surge protection
Compact 3P+N configuration with L-N and N-PE protection
Coordinated high-energy MOV and GDT protection technology
Módulos pluggable com indicação visual e contato remoto opcional
Aplicações Adequadas
LY1-D20M/3(S)+1 is suitable for compact three-phase plus neutral systems requiring coordinated Type 2+3 surge protection in limited DIN-rail space.
Quadros de sub-distribuição
For downstream protection in compact commercial and industrial 3P+N distribution boards.
Painéis de Controle Industrial
Suitable for machinery controls, factory automation cabinets, HVAC panels, and production equipment.
Instalações Comerciais
Helps protect building controls, office distribution cabinets, retail systems, and sensitive commercial loads.
Painéis de Inversores Solares CA
Para os painéis do lado CA do inversor solar trifásico quando a versão Uc selecionada corresponde à tensão do sistema.
FAQ
Common questions about LY1-D20M/3(S)+1 compact 3P+N pluggable Type 2+3 AC surge protective device selection.
Para que é utilizado o LY1-D20M/3(S)+1?
LY1-D20M/3(S)+1 é utilizado para proteção contra surtos na distribuição final e a montante em sistemas AC compactos trifásicos mais neutro.
O que significa 3P+N?
3P+N means the SPD is designed for three phase conductors plus neutral, using MOV protection on the L-N paths and a GDT protection path between N-PE.
Is LY1-D20M/3(S)+1 a Type 2 or Type 3 SPD?
It is classified as Class II+III / Type 2+3, making it suitable for coordinated downstream and final-distribution surge protection.
Does this SPD use MOV or GDT protection?
It uses a coordinated MOV and GDT structure. MOV modules protect the L-N paths, while the GDT provides the N-PE protection path.
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.












