Use Tipo 1+2 na etapa de entrada
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, polos e sistema de aterramento para confirmar o modelo correto e o escopo da documentação.
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.
| Sistema AC | Configuração inicial comum | Conceito de proteção | Confirmação essencial antes do pedido |
|---|---|---|---|
| TN-S / TT monofásico | arranjo 1P+N ou 2P verificado | L-N mais N-PE, ou arranjo all-mode conforme o projeto | Uc, caminho N-PE, distribuição de Iimp e proteção de backup |
| TN-C trifásico | 3P | Condutores fase-PEN sem neutro separado no ponto de instalação | Arranjo PEN real, Uc e condições de curto-circuito |
| TN-S trifásico | 4P ou 3P+N | 4+0 ou 3+1, dependendo da topologia do projeto | Tratamento do neutro, caminho N-PE, Up e encaminhamento dos condutores |
| TT trifásico | Arranjo 3P+N verificado | Normalmente caminhos MOV L-N mais caminho GDT N-PE | Corrente de impulso N-PE, corrente subsequente e cobertura documentada |
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.
Projetado com base no ensaio de corrente de raio 10/350μs e no desempenho de Iimp.
Um DPS avaliado tanto para desempenho de corrente de raio 10/350μs quanto para desempenho de corrente de surto 8/20μs.
Projetado com base no ensaio 8/20μs usando In e Imax como os principais parâmetros de corrente.
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.
Módulo plugável Tipo 1+2 de polo único para um caminho de proteção verificado.
Higher-Uc versions can have different Iimp and backup-fuse limits. Confirm the exact voltage suffix.
Conjunto plugável de dois polos para um projeto de sistema que exija dois condutores protegidos.
A 2P enclosure does not by itself prove the correct L-N/N-PE topology. Verify the internal protection mode.
SPD plugável de Tipo 1+2 de três polos para arranjos verificados de três condutores.
Commonly considered where no separate neutral conductor is protected at the installation point. Confirm the actual system.
SPD plugável de Tipo 1+2 de quatro polos para um arranjo de proteção 4+0 verificado.
Do not treat “4P” as automatically identical to a 3+1 MOV+GDT configuration. Check the protection paths.
Arranjo de MOV L-N mais GDT N-PE para uma topologia monofásica verificada.
Confirm N-PE follow-current behavior, Up and the external backup-fuse requirement for the exact version.
Três caminhos de MOV L-N mais um caminho de GDT N-PE para uma topologia 3+1 verificada.
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.
Pergunte como a corrente declarada de 10/350μs é alocada. 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. Uma Uc mais alta não é automaticamente melhor.
A 4P MOV arrangement and a 3P+N MOV+GDT arrangement create different paths. Confirm o manuseio do neutro, o comportamento N-PE e o sistema de aterramento do projeto.
The SPD’s internal thermal disconnector does not replace all external short-circuit protection. Check the fusível de reserva máximo, a corrente de falta prospectiva e o comprimento do condutor.
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.
Os componentes de proteção principais são verificados antes de se tornarem parte de um conjunto de DPS finalizado.
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.
Limite do documento: 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.
Esclarecimento sobre a marca: LEEYEE é a marca do produto. CNSPD.com é a plataforma de proteção contra surtos da LEEYEE para compradores globais.
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.