Pluggable Type 1+2 AC Surge Protection for 1P+N Systems
LY1-12.5/1(S)+1 is a 1P+N pluggable Type 1+2 AC surge protective device designed for low-voltage distribution systems. It combines high-energy MOV and GDT protection elements for L-N and N-PE protection, helping limit lightning surges and transient overvoltage in incoming AC power circuits.
1P+N Type 1+2 AC SPD for main distribution board protection
L-N and N-PE protection modes with MOV + GDT hybrid design
12.5kA / 25kA Iimp and 20kA / 25kA In surge ratings
Design de módulo pluggable com contato remoto opcional para monitoramento de status
Aplicações Adequadas
LY1-12.5/1(S)+1 is suitable for low-voltage 1P+N AC systems where Type 1+2 surge protection is required at the incoming power side or distribution panel level.
Quadros de Distribuição Principal
Para proteção contra surtos em quadros de distribuição AC monofásicos com neutro.
Painéis Residenciais
Suitable for smart homes and residential service panels requiring 1P+N SPD protection.
Office Buildings
Helps protect office electrical systems from lightning-induced surges and switching overvoltage.
Painéis Laterais AC Solares
Can be used on the AC side of solar systems when voltage rating and protection mode match the design.
FAQ
Common questions about LY1-12.5/1(S)+1 1P+N pluggable Type 1+2 AC surge protective device selection and application.
What is LY1-12.5/1(S)+1 used for?
LY1-12.5/1(S)+1 is used for 1P+N AC surge protection in low-voltage distribution systems. It helps limit transient overvoltage in L-N and N-PE protection paths.
O que significa 1P+N?
1P+N means the SPD is designed for single-phase plus neutral systems, with protection paths between L-N and N-PE.
Qual é o papel do MOV e do GDT?
O MOV ajuda a limitar rapidamente a sobretensão transitória, enquanto o GDT suporta a descarga de alta energia, especialmente no caminho de proteção N-PE.
Quais são as classificações de surto que este SPD fornece?
This model provides 12.5kA / 25kA impulse discharge current Iimp, 20kA / 25kA nominal discharge current In, and 50kA / 50kA maximum discharge current Imax for L-N / N-PE protection paths.
Quais opções de voltagem estão disponíveis?
As opções de tensão máxima contínua de operação L-N disponíveis incluem 75V, 150V, 275V e 320V CA. A tensão contínua de operação N-PE é de 255V.
O que deve ser confirmado antes de fazer o pedido?
Please confirm voltage rating, 1P+N system design, L-N / N-PE protection mode, backup fuse, DIN-rail space, wiring cross-section, and remote contact requirement before ordering.











