High-Energy Type 1+2 AC Surge Protection for Main Distribution Boards
LY1-B25/1(S) is a monoblock single-pole Type 1+2 AC surge protective device designed for main distribution boards and low-voltage AC power systems. With 25kA impulse discharge current and 100kA maximum discharge current, it helps protect incoming power lines against lightning surges and transient overvoltage.
Class I+II / Type 1+2 AC SPD for main distribution board protection
25kA Iimp and 100kA Imax for high-energy surge protection
Monoblock design with high-energy MOV protection element
Suitable for TN-S, TN-C, and TT network systems
Aplikasi Yang Sesuai
LY1-B25/1(S) is suitable for AC power systems where high-energy surge protection is required at the incoming power side or main distribution level.
Main Distribution Boards
For incoming AC power protection in main distribution boards and low-voltage panels.
Gedung Komersial
Helps protect building power distribution systems from lightning-induced surges.
Industrial Power Panels
Suitable for low-voltage industrial panels that require Type 1+2 surge protection.
Solar AC Side Panels
Can be used on the AC side of solar systems when the voltage and protection mode match the design.
FAQ
Common questions about LY1-B25/1(S) monoblock single-pole AC surge protective device selection and application.
Apa fungsi LY1-B25/1(S)?
LY1-B25/1(S) digunakan untuk perlindungan lonjakan AC di panel distribusi utama atau sisi daya masuk. Itu membantu membatasi lonjakan petir dan overvoltase transien dalam sistem AC tegangan rendah.
Apa arti Tipe 1+2?
Tipe 1+2 berarti SPD dirancang untuk menangani arus impuls energi tinggi dan kebutuhan perlindungan lonjakan yang lebih lanjut. Ini biasanya digunakan di tingkat distribusi utama di mana perlindungan lonjakan yang lebih kuat diperlukan.
Apa peringkat lonjakan yang disediakan oleh SPD ini?
LY1-B25/1(S) menyediakan arus pelepasan impuls 25kA Iimp, arus pelepasan nominal 25kA In, dan arus pelepasan maksimum 100kA Imax.
Which network systems can it be used in?
This model is suitable for TN-S, TN-C, and TT network systems when the protection mode and voltage rating match the electrical design.
Apakah model ini mendukung sinyal jarak jauh?
Yes. The “S” version can include optional remote contact for SPD status monitoring. Please confirm this requirement before ordering.
Apa yang harus dikonfirmasi sebelum memesan?
Please confirm system voltage, network system, protection mode, backup fuse, installation space, wiring cross-section, and remote signalling requirement before ordering.







■ Connection Diagram



