Compact Type 2+3 AC Surge Protection for Two-Pole Circuits
LY1-D20M/2(S) is a compact two-pole pluggable Type 2+3 AC surge protective device designed for single-phase distribution systems and space-limited control panels. Its high-energy MOV modules provide fast surge limitation through L-PE and N-PE protection paths, with 10kA nominal discharge current and 20kA maximum discharge current.
Class II+III / Type 2+3 downstream surge protection
Compact two-pole design with L-PE and N-PE protection
Corrente de descarga nominal de 10kA e corrente de descarga máxima de 20kA
Cartuchos substituíveis com indicação visual e contato remoto opcional
Aplicações Adequadas
LY1-D20M/2(S) is suitable for compact single-phase AC systems requiring two-pole Type 2+3 surge protection in limited DIN-rail space.
Compact Distribution Boards
For residential, commercial, and light-industrial panels with limited DIN-rail space.
Gabinetes de Controle
Suitable for compact machinery controls, automation cabinets, HVAC systems, and equipment panels.
UPS & Telecom Power
Helps protect UPS inputs, telecom power supplies, communication equipment, and sensitive electronic loads.
Solar Inverter AC Boxes
For single-phase solar inverter AC-side boxes when the selected Uc rating matches the system voltage.
FAQ
Common questions about LY1-D20M/2(S) compact two-pole pluggable Type 2+3 AC surge protective device selection.
What is LY1-D20M/2(S) used for?
LY1-D20M/2(S) is used for downstream and final-distribution surge protection in compact single-phase AC systems. It helps limit transient overvoltage through two protection paths before the surge reaches connected equipment.
Is LY1-D20M/2(S) a single-pole or two-pole SPD?
LY1-D20M/2(S) is a two-pole surge protective device. The existing page title describing it as single-pole should be changed to two-pole.
Is LY1-D20M/2(S) a Type 2 or Type 3 SPD?
LY1-D20M/2(S) is classified as Class II+III / Type 2+3, making it suitable for coordinated downstream and final-distribution surge protection.
Este produto utiliza proteção MOV ou GDT?
The product specification identifies high-energy MOV protection. The previous body text describing the complete product as a GDT SPD should be removed to keep the page technically consistent.
Quais são as classificações de corrente de descarga que ele fornece?
Ele fornece uma corrente de descarga nominal de 10kA In e uma corrente de descarga máxima de 20kA Imax, ambas baseadas na forma de onda de corrente de 8/20μs.
O que deve ser confirmado antes de fazer o pedido?
Confirm the nominal system voltage, required Uc and Up level, two-pole wiring arrangement, 125A maximum backup-fuse coordination, conductor size, available DIN-rail space, and optional remote-contact requirement.
