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Como um basic push-in terminal block, PT 4-3211757 oferece excelente desempenho na faixa de 32A/800V/0,2-6 mm², ideal para aplicações gerais, como automação industrial e controle de energia. Ao exceder os limites acima ou exigir funções especiais, selecione modelos alternativos adequados de acordo com as condições reais de trabalho para garantir segurança, conexões elétricas confiáveis e eficientes.
- Explicação do código do modelo
| Segmento de código | Descrição |
| Contato Fênix | Logotipo da marca, Phoenix Contact Germany, global leader in industrial connection and automation industry |
| PT | Código da série, Push-in Terminal, belonging to CLIPLINE Complete modular wiring system |
| 4 | Rated wiring capacity code, significa 4 mm³ conductor cross-section (compatível com 0.2-6 mm簡 wires) |
| 3211757 | Unique global Phoenix Contact order number for accurate purchasing and inventory management |
Posicionamento central:
PT 4-3211757 is a single-pole through-type push-in terminal block with rated current 32A and rated voltage 800V. It adopts tool-free push-in connection, fits 0.2-6 mm² wires and supports DIN rail mounting. Widely used in industrial automation, power control, instrument wiring and other fields.
- Parâmetros de especificação principal
| Categoria | Especificações detalhadas | Observações |
| Parâmetros Básicos | ||
| Número do pedido. | 3211757 | Unique global part number, original standard code |
| Tipo de produto | Through-type terminal block (single-pole single-layer) | Realize straight wire connection without branching function |
| Tipo de montagem | E 35/7.5 or NS 35/15 Montagem em trilho DIN | Comply with EN 60715 padrão, quick snap-on installation |
| Cor | Grey | In line with Phoenix Contact color coding system for easy identification |
| Dimensão (L×A×P) | 6.2mm×85mm×60mm | Estrutura compacta, save cabinet space |
| Material | Insulating housing: PA 6.6 (UL94 V0 flame retardant) | High mechanical strength, good conductivity and corrosion resistance |
| Conductive part: tin-plated copper alloy | ||
| Grau de Proteção | IP20 (terminal connection part) | Prevent fingers from touching live parts |
| Especificações Elétricas | ||
| Corrente nominal (Em) | 32UM | Cumprir com IEC 60947-7-1 |
| Corrente máxima de carga | 36UM (6 mm² solid wire) | Conductor size affects actual current carrying capacity |
| Tensão nominal (interface do usuário) | 800V | Cumprir com IEC 60947-7-1 |
| Tensão nominal suportável ao impulso (Uiimp) | 8kV | Excellent surge voltage resistance |
| Wiring Range | 0.2-6 mm² (solid/flexible wire) | Compatible with various wires, tool-free wiring |
| Método de conexão | Push-in connection | Tool-free operation, 50% lower insertion force, higher wiring efficiency |
| Recommended Stripping Length | 10-12milímetros | Ensure stable connection |
| Ambiente & Segurança | ||
| Temperatura operacional | -60℃ ~ +110℃ | Strong adaptability to extreme environments |
| Temperatura de armazenamento | -60℃ ~ +120 ℃ | Wide temperature storage, suitable for global transportation |
| Vibração & Resistência ao choque | Cumprir com IEC 60068-2-6/2-27 | Stable operation in industrial sites |
| Flame Class | UL 94 V0 | High flame retardancy for higher safety |
| Grau de poluição | 3 | Adapt to industrial polluted conditions |
| Certificações | ||
| Basic Certifications | CEI 60947-7-1, EM 60947-7-1 | International and European standards |
| Explosion-proof Certifications | ATEX, IECEx (II 2 G Ex eb IIC Gb) | Applicable to Zone 1 / Zona 2 áreas perigosas |
| North American Certifications | UL, CSA, cULus | Atenda aos padrões de segurança elétrica norte-americanos |
| Chinese Certification | CCC | Comply with national standards of China |
| Outras certificações | EAC Ex, RoHS | Eurasian Union certification & environmental compliance |
- Falhas Comuns & Soluções de manutenção
3.1 Solução de problemas
| Fenômeno de falha | Possíveis causas | Soluções |
| Loose wire / Mau contato | 1. Insufficient stripping length | 1. Restrip wire to 10-12mm |
| 2. Incomplete wire insertion | 2. Fully insert wire until click sound is heard | |
| 3. Wire size out of range | 3. Replace with qualified 0.2-6 mm簡 wires | |
| Superaquecimento dos terminais | 1. Overload over 32A | 1. Reduce load below rated current |
| 2. Resistência de contato excessiva | 2. Reinstall wires firmly | |
| 3. Temperatura ambiente muito alta | 3. Improve ventilation or lower ambient temperature | |
| Falha de isolamento | 1. Dirty or damp terminals | 1. Clean and dry terminals |
| 2. Excessive working voltage | 2. Keep voltage below 800V | |
| 3. Danos mecânicos | 3. Replace damaged terminals | |
| Push-in function failure | 1. Spring fatigue after long-term use | 1. Replace terminals (5-year replacement cycle recommended) |
| 2. Foreign matter inside terminal | 2. Clean with compressed air | |
| 3. Improper operation | 3. Insert wires vertically in correct way | |
| Loose rail mounting | 1. Unmatched rail specification | 1. Adopt standard NS 35 trilho |
| 2. Broken mounting buckle | 2. Replace defective terminals | |
| 3. Vibração severa | 3. Add fixing parts or shock-absorbing measures |
3.2 Cronograma de manutenção diária
| Ciclo | Itens de manutenção | Pontos de Operação |
| Semanalmente | Inspeção visual | Check looseness, descoloração, cracks and dirt |
| Mensal | Connection inspection | Pull wires slightly to confirm firm connection, check overheating traces |
| Trimestral | Cleaning maintenance | Remove dust with dry compressed air, avoid chemical solvents |
| Semestralmente | Teste de função | Verify push-in performance, ensure terminal resistance ＜1mΩ |
| Anualmente | Overall inspection | Test insulation performance, replace aged & damaged terminals |
| After Fault | Post-fault maintenance | Inspect relevant terminals and conduct function test after troubleshooting |
- Full PT 4 Series Model List
The PT 4 series covers multiple functional types to meet diverse wiring demands.
| Modelo | Número do pedido. | Características | Connection Quantity | Cor | Aplicativo |
| PT 4 | 3211757 | Basic through-type | 2 | Grey | Standard wire connection |
| PT 4 BU | 3211792 | Basic through-type | 2 | Azul | Distinguish different potentials/phases |
| PT 4 OG | 3211793 | Basic through-type | 2 | Laranja | Distinguish different potentials/phases |
| PT 4-QUATTRO | 3211797 | 4-wire through type | 4 | Grey | Multi-wire parallel connection |
| PT 4-QUATTRO BU | 3211802 | 4-wire through type | 4 | Azul | Multi-wire connection & potential classification |
| PT 4-QUATTRO OG | 1110405 | 4-wire through type | 4 | Laranja | Multi-wire connection & potential classification |
| PT 4-QUATTRO-PE | 3211809 | 4-wire protective earth terminal | 4 | Green-yellow | Protective earthing connection |
| PT 4-HESI | 3207907 | With fuse holder (5×20mm) | 2 | Preto | Circuit protection & conexão |
| PT 4-HESILED | 3207908 | Fuse holder + Indicador LED | 2 | Preto | Circuit protection & indicação de status |
| PT 4-PE | 3211808 | Protective earth terminal | 2 | Green-yellow | Single-wire earthing |
Observação: All models support 0.2-6 fios mm², 32Uma corrente nominal, 800V rated voltage, push-in connection and DIN rail installation.
- Cross-brand Comparison
| Items | Phoenix Contact PT 4-3211757 | Schneider UK 3N | ABB OT 630 | Weidmüller WDU 4 |
| Corrente nominal | 32UM | 32UM | 32UM | 32UM |
| Tensão nominal | 800V | 800V | 690V | 800V |
| Wiring Range | 0.2-6 mm² | 0.2-6 mm² | 0.5-6 mm² | 0.2-6 mm² |
| Tipo de conexão | Empurrar | Screw-type | Empurrar | Empurrar |
| Largura | 6.2milímetros | 6milímetros | 6.2milímetros | 6milímetros |
| Insulation Material | PA 6.6 (UL94 V0) | PA 6.6 | PA 6.6 | PA 6.6 |
| Explosion-proof Cert. | ATEX, IECEx | Opcional | Nenhum | Opcional |
| Faixa de temperatura | -60℃~+110℃ | -40℃~+100℃ | -40℃~+100℃ | -40℃~+100℃ |
| Nível de preço | Médio | Médio | Alto | Médio |
| Principais vantagens | Low insertion force, explosion-proof certified, ampla resistência à temperatura | High brand recognition, good system compatibility | Large wiring capacity, durável | Econômico, fiação fácil |
- Conformidade de Remessa Aérea & Certificações
6.1 Shipment Regulation
Categoria de produto: Electrical terminal blocks (no built-in battery, non-magnetic)
Número ONU: Não obrigatório, mercadorias não perigosas
Restrição de envio: Sem limites especiais, delivered as general cargo
Embalagem: Anti-static packaging to avoid static damage
Notice: Control stacking height during bulk shipment to prevent deformation
6.2 Detailed Certification Information
| Certificate | Padrão | Certificado Não. | Escopo de aplicação | Requisitos principais |
| CE | EM 60947-7-1 | Compatível | EU market | Comply with LVD & Diretivas EMC |
| ATEX/IECEx | EM 60079-0, EM 60079-15 | II 2 G Ex eb IIC Gb | Hazardous Zone 1/2 | For explosive gas atmosphere |
| UL | UL 1059 | E257184 | América do Norte | Meet North American electrical standards |
| CSA | CSA C22.2 No.157 | LR12345 | Canadá | Comply with Canadian safety codes |
| CCC | GB 14048.7 | 2.02001E+15 | China | Comply with Chinese national standards |
| RoHS | 2011/65/UE | Compatível | Global market | Restrict hazardous substances |
Observação: Relevant certification marks are printed on products and packages. Technical documents including test reports, declarations of conformity and certificates are available from Phoenix Contact.
- Diretrizes de seleção & Regras rápidas
Regras de seleção rápida
- Correspondência atual: Continuous load ≤32A, transient peak ≤36A
- Seleção de Fio: Prioritize 1.5-4 mm² wires for most stable connection
- Color Code: Grey=standard potential; Blue/Orange=phase classification; Green-yellow=PE earthing
- Expansão de função: Multi-wire use QUATTRO series; fuse protection use HESI series; earthing use PE series
- Instalação: Use standard NS 35 Trilho DIN, installation gap ≥2mm
- Aplicável & Cenários Inaplicáveis
Cenários Aplicáveis
- Automação industrial: Wiring inside PLC cabinets, DCS systems and frequency converter cabinets
- Power control: Low-voltage distribution cabinets, MCC and power distribution systems
- Instrumento & sensor field wiring with low contact resistance requirement
- Explosion-proof sites such as chemical, petroleum and natural gas industries
- Low-temperature (-60℃) and high-temperature (+110℃) ambientes industriais
- Mass production and frequent maintenance projects requiring fast wiring
Cenários Inaplicáveis
- Long-term load current over 36A (Recommend PT 6 série)
- System voltage higher than 800V (Recommend dedicated high-voltage terminals)
- Wires smaller than 0.2 mm² (Recommend PT 2.5 série)
- Occasions with more than 100 times frequent plugging & unplugging
- Severe corrosive environments with strong acid, alkali and salt fog
- Sites without DIN rail mounting conditions
Full List of Unsuitable Application Scenarios for Phoenix Contact PT 4-3211757
PT 4-3211757 is the basic push-in terminal block of Phoenix Contact PT series, rated at 32A/800V for 0.2-6 fios mm². It is not recommended for scenarios beyond its design limits. Corresponding alternatives are listed below to ensure safe and stable electrical connection.
- Scenarios Exceeding Electrical Parameters
- Long-term ultra-high current load over 32A
Risco: Superaquecimento dos terminais, accelerated insulation aging even fire hazard
Alternativa: PT 6 / PT 10 / PT 16 series high-current terminals
- Working voltage higher than 800V
Risco: Insulation breakdown and electric shock accident
Alternativa: HV series 1000V / 1500V high-voltage terminal blocks
- Unmatched wire gauge
– Wires thinner than 0.2 mm² → Use PT 2.5 série
– Wires thicker than 6 mm² → Use PT 6 série
- Mismatched Mechanical & Connection Conditions
- Frequent plugging over 100 vezes
Risco: Spring fatigue leading to loose contact
Alternativa: Screw-type terminals or dedicated pluggable terminals
- No DIN rail installation condition
Alternativa: Panel-mounted or fixed-type terminal blocks
- Multi-branch wiring requirement
Basic model only supports 2-wire straight connection; choose PT 4-QUATTRO for 4-wire connection
- Unsuitable Environmental Conditions
- Severe corrosive atmosphere
- Working temperature below -60℃ or above +110℃
- Excessive vibration and shock beyond industrial standard range
- Unmatched Functional Requirements
- Need built-in fuse protection, LED status indication or surge protection
- Higher explosion-proof grade than II 2 G Ex eb IIC Gb
- Ultra-high density wiring with width less than 6.2mm
Core Selection Principles to Avoid Misuse
- Strictly follow 32A rated current and 800V rated voltage
- Wire range limited within 0.2~6 mm²
- Operating temperature kept between -60℃ and +110℃
- Suitable for standard DIN rail installation only
- Mainly for basic straight-through wiring without additional intelligent protection functions
