Compact Type 1+2 AC Surge Protection for 3P+N Systems
LY1-C40M/4(S) is a compact four-pole pluggable Type 1+2 AC surge protective device designed for three-phase plus neutral distribution systems. Its mini modular construction combines 7kA impulse-current capability with 20kA nominal and 40kA maximum discharge ratings, helping protect multi-phase power circuits while reducing the DIN-rail space required inside distribution panels.
Compact 4P / 3P+N design for three-phase four-wire systems
7kA Iimp, 20kA In, and 40kA Imax surge ratings
75V to 440V AC versions for different low-voltage systems
Moduli pluggable con indicazione visiva dello stato e contatto remoto opzionale
Applicazioni Idonee
LY1-C40M/4(S) is suitable for three-phase plus neutral AC systems requiring compact Type 1+2 surge protection in distribution boards, machinery panels, automation systems, and other space-limited electrical installations.
Quadri di Distribuzione
For compact four-pole surge protection in three-phase plus neutral distribution panels.
Pannelli di controllo industriale
Suitable for machinery controls, automation cabinets, HVAC panels, and industrial power equipment.
Edifici commerciali
Helps protect three-phase building power systems from switching surges and lightning-induced overvoltage.
Solar AC Output Panels
For three-phase solar inverter AC output panels when the voltage version matches the system design.
FAQ
Common questions about LY1-C40M/4(S) compact four-pole pluggable Type 1+2 AC surge protective device selection.
What is LY1-C40M/4(S) used for?
LY1-C40M/4(S) is used for surge protection in compact three-phase plus neutral AC distribution systems, including distribution boards, machinery cabinets, automation systems, HVAC panels, and solar inverter AC output panels.
What does 4P or 3P+N mean?
It means the SPD is designed for three phase conductors plus neutral, allowing coordinated surge protection across all four conductors in a three-phase four-wire system.
Quali valutazioni di sovratensione fornisce questo SPD?
Il dispositivo fornisce una corrente di scarica d'impulso Iimp di 7kA, una corrente di scarica nominale In di 20kA e una corrente di scarica massima Imax di 40kA.
Quali opzioni di tensione sono disponibili?
Maximum continuous operating voltage options include 75V, 150V, 275V, 320V, 385V, and 440V AC. The voltage version must be selected according to the nominal voltage and earthing arrangement of the system.
What is the benefit of the compact pluggable design?
The compact structure reduces DIN-rail space, while the pluggable cartridges allow individual modules to be inspected and replaced without removing the complete wired base.
Cosa dovrebbe essere confermato prima di ordinare?
Confirm the system voltage, 3P+N circuit arrangement, required surge ratings, 63A maximum backup-fuse coordination, conductor size, available DIN-rail space, and remote-contact requirement.
