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
Corriente de descarga nominal de 10kA y corriente máxima de 20kA
Replaceable cartridges with visual indication and optional remote contact
Aplicaciones adecuadas
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.
Tableros de Distribución Compactos
For residential, commercial, and light-industrial panels with limited DIN-rail space.
Gabinetes de Control
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.
Cajas de inversores solares de CA
For single-phase solar inverter AC-side boxes when the selected Uc rating matches the system voltage.
PREGUNTAS FRECUENTES
Common questions about LY1-D20M/2(S) compact two-pole pluggable Type 2+3 AC surge protective device selection.
¿Para qué se utiliza LY1-D20M/2(S)?
LY1-D20M/2(S) se utiliza para la protección contra sobretensiones en la distribución final y en sistemas de CA monofásicos compactos. Ayuda a limitar las sobretensiones transitorias a través de dos caminos de protección antes de que la sobretensión alcance el equipo conectado.
¿Es LY1-D20M/2(S) un SPD monopolar o bipolar?
LY1-D20M/2(S) es un dispositivo de protección contra sobretensiones de dos polos. El título de la página existente que lo describe como de un solo polo debe ser cambiado a de dos polos.
¿Es LY1-D20M/2(S) un SPD de Tipo 2 o Tipo 3?
LY1-D20M/2(S) se clasifica como Clase II+III / Tipo 2+3, lo que lo hace adecuado para la protección contra sobrecargas coordinadas en la distribución final.
Does this product use MOV or GDT protection?
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.
¿Qué clasificaciones de corriente de descarga proporciona?
It provides 10kA nominal discharge current In and 20kA maximum discharge current Imax, both based on the 8/20μs current waveform.
¿Qué se debe confirmar antes de ordenar?
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.
