Gunakan Type 1+2 pada tahap masuk
It is commonly considered for main distribution boards and buildings with an external lightning protection system when one device must provide both lightning-current and surge performance.
Combined lightning-current and surge protection for main distribution boards, distributors, panel builders and OEM projects. Send Uc, Iimp, kutub, dan sistem pentanahan untuk mengonfirmasi model dan cakupan dokumen yang benar.
A Type 1+2 SPD should not be selected by pole count alone. Confirm where it is installed, how neutral and PE are arranged, the required Iimp path, Uc and the external backup protection.
It is commonly considered for main distribution boards and buildings with an external lightning protection system when one device must provide both lightning-current and surge performance.
3P, 4P and 3P+N are not interchangeable labels. The correct arrangement depends on TT, TN-S or TN-C conductors and whether the design uses 4+0 or 3+1 protection.
For MOV+GDT arrangements, L-N and N-PE values can differ. Ask whether Iimp is stated per pole, per protection path or as a total value.
| Sistem AC | Konfigurasi awal umum | Konsep proteksi | Konfirmasi utama sebelum pemesanan |
|---|---|---|---|
| TN-S satu fase / TT | 1P+N atau susunan 2P yang terverifikasi | L-N ditambah N-PE, atau susunan semua mode sesuai rancangan | Uc, jalur N-PE, alokasi Iimp, dan proteksi cadangan |
| TN-C tiga fase | 3P | Konduktor fase ke PEN tanpa netral terpisah pada titik instalasi | Susunan PEN aktual, Uc, dan kondisi hubung singkat |
| TN-S tiga fase | 4P atau 3P+N | 4+0 atau 3+1 tergantung topologi proyek | Perlakuan netral, jalur N-PE, pengkabelan Up dan konduktor |
| TT tiga fase | Susunan 3P+N terverifikasi | Umumnya jalur MOV L-N ditambah jalur GDT N-PE | Arus impuls N-PE, arus lanjut, dan cakupan dokumentasi |
The classification changes the test parameters, expected installation stage and procurement checks. The page below focuses only on the combined Type 1+2 product range.
Dirancang berdasarkan pengujian arus petir 10\/350μs dan kinerja Iimp.
Satu SPD dievaluasi untuk kinerja arus petir 10/350μs dan arus lonjakan 8/20μs.
Dirancang berdasarkan pengujian 8\/20μs dengan In dan Imax sebagai parameter arus utama.
Six existing configurations cover single-path, multi-pole and MOV+GDT arrangements. Exact Uc, Up, Iimp, In and backup-fuse data are checked against the selected version.
Modul Tipe 1+2 plug-in satu kutub untuk jalur proteksi yang terverifikasi.
Higher-Uc versions can have different Iimp and backup-fuse limits. Confirm the exact voltage suffix.
Rakitan plug-in dua kutub untuk desain sistem yang memerlukan dua konduktor terlindungi.
A 2P enclosure does not by itself prove the correct L-N/N-PE topology. Verify the internal protection mode.
SPD plug-in Type 1+2 3 kutub untuk susunan tiga konduktor yang terverifikasi.
Commonly considered where no separate neutral conductor is protected at the installation point. Confirm the actual system.
SPD plug-in Type 1+2 4 kutub untuk susunan proteksi 4+0 yang terverifikasi.
Do not treat “4P” as automatically identical to a 3+1 MOV+GDT configuration. Check the protection paths.
Pengaturan L-N MOV ditambah N-PE GDT untuk topologi fase tunggal yang terverifikasi.
Confirm N-PE follow-current behavior, Up and the external backup-fuse requirement for the exact version.
Tiga jalur MOV L-N ditambah satu jalur GDT N-PE untuk topologi 3+1 yang terverifikasi.
L-N and N-PE values are intentionally different. Review each path instead of relying on one headline current value.
A model can look correct by Type and pole count but still be unsuitable because the current path, Uc, topology or backup protection was not verified.
Tanyakan bagaimana arus 10/350μs yang dideklarasikan dialokasikan. A headline number can refer to one pole, one path or a complete N-PE path depending on the model.
Choose Uc against the actual phase-to-neutral or phase-to-earth voltage, tolerances and temporary overvoltage exposure. Uc yang lebih tinggi tidak otomatis lebih baik.
A 4P MOV arrangement and a 3P+N MOV+GDT arrangement create different paths. Confirm penanganan netral, perilaku N-PE, dan sistem pembumian proyek.
The SPD’s internal thermal disconnector does not replace all external short-circuit protection. Check the sekring cadangan maksimum, arus gangguan prospektif, dan panjang konduktor.
Equipment photos are supporting evidence, not a substitute for a model-specific test report. The exact Type, Uc, poles and branding configuration must still match the document scope.
Komponen pelindung inti diperiksa sebelum menjadi bagian dari perakitan SPD yang sudah jadi.
Type 1+2 procurement requires evidence for both lightning-current and surge-current performance, according to the exact model.
Thermal behavior matters because MOV ageing and abnormal voltage exposure can create a safety risk if disconnection is unreliable.
Batasan dokumen: Certification and test-document availability depends on the exact model, voltage, SPD Type, pole configuration, brand and manufacturer information. Submit the required version for confirmation.
For distributors, panel builders and private-label buyers, commercial approval is not complete until the selected model and all customer-facing documents describe the same product.
Share the intended market, system, quantity and branding requirement so LEEYEE can identify the relevant model and available documentation.
A short approval sequence reduces the risk of ordering the correct enclosure with the wrong electrical or document configuration.
These answers cover the most common procurement errors. For a model recommendation, send the actual system voltage, earthing arrangement, poles and quantity.
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Send the essential project details now. We will use them to confirm the suitable Type 1+2 model, document scope and quotation requirements.
Your project details will be used to review the suitable model, documentation scope and quotation requirements.