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como un basic push-in terminal block, PT 4-3211757 Ofrece un rendimiento excelente dentro del rango de 32 A/800 V/0,2-6 mm²., Ideal para aplicaciones generales como automatización industrial y control de energía.. Cuando se exceden los límites anteriores o se requieren funciones especiales, Seleccione modelos alternativos adecuados según las condiciones de trabajo reales para garantizar la seguridad., conexiones eléctricas confiables y eficientes.
- Explicación del código del modelo
| Segmento de código | Descripción |
| Contacto Fénix | Brand logo, Phoenix Contact Germany, global leader in industrial connection and automation industry |
| PT | código de serie, Push-in Terminal, belonging to CLIPLINE Complete modular wiring system |
| 4 | Rated wiring capacity code, stands for 4 mm³ conductor cross-section (compatible con 0.2-6 mm簡 wires) |
| 3211757 | Unique global Phoenix Contact order number for accurate purchasing and inventory management |
Posicionamiento 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.
- Parámetros de especificación principales
| Categoría | Especificaciones detalladas | Observaciones |
| Parámetros básicos | ||
| Número de pedido. | 3211757 | Unique global part number, original standard code |
| Tipo de producto | Through-type terminal block (single-pole single-layer) | Realize straight wire connection without branching function |
| Tipo de montaje | NS 35/7.5 or NS 35/15 Montaje en carril DIN | Comply with EN 60715 estándar, quick snap-on installation |
| Color | Gris | In line with Phoenix Contact color coding system for easy identification |
| Dimensión (Ancho×Alto×Profundidad) | 6.2mm×85mm×60mm | Estructura compacta, ahorrar espacio en el gabinete |
| Material | Insulating housing: Pensilvania 6.6 (UL94 V0 flame retardant) | High mechanical strength, good conductivity and corrosion resistance |
| Conductive part: tin-plated copper alloy | ||
| Grado de protección | IP20 (terminal connection part) | Prevent fingers from touching live parts |
| Especificaciones eléctricas | ||
| Corriente nominal (En) | 32A | Cumplir con IEC 60947-7-1 |
| Max Load Current | 36A (6 mm² solid wire) | Conductor size affects actual current carrying capacity |
| Tensión nominal (interfaz de usuario) | 800V | Cumplir con IEC 60947-7-1 |
| Tensión nominal de resistencia al 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 conexión | Push-in connection | Tool-free operation, 50% lower insertion force, higher wiring efficiency |
| Recommended Stripping Length | 10-12milímetros | Ensure stable connection |
| Ambiente & Seguridad | ||
| Temperatura de funcionamiento | -60℃ ~ +110℃ | Strong adaptability to extreme environments |
| Temperatura de almacenamiento | -60℃ ~ +120 ℃ | Wide temperature storage, suitable for global transportation |
| Vibración & Resistencia a los golpes | Cumplir con IEC 60068-2-6/2-27 | Stable operation in industrial sites |
| Flame Class | UL 94 V0 | High flame retardancy for higher safety |
| Grado de contaminación | 3 | Adapt to industrial polluted conditions |
| Certificaciones | ||
| Basic Certifications | CEI 60947-7-1, EN 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 peligrosas |
| North American Certifications | UL, CSA, cULus | Meet North American electrical safety standards |
| Chinese Certification | CCC | Comply with national standards of China |
| Other Certifications | EAC Ex, RoHS | Eurasian Union certification & environmental compliance |
- Fallos comunes & Soluciones de mantenimiento
3.1 Solución de problemas
| Fenómeno de falla | Posibles causas | Soluciones |
| Loose wire / mal contacto | 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 | |
| Terminal overheating | 1. Overload over 32A | 1. Reduce load below rated current |
| 2. Excessive contact resistance | 2. Reinstall wires firmly | |
| 3. Ambient temperature too high | 3. Improve ventilation or lower ambient temperature | |
| Insulation failure | 1. Dirty or damp terminals | 1. Clean and dry terminals |
| 2. Excessive working voltage | 2. Keep voltage below 800V | |
| 3. Daño mecánico | 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 rail |
| 2. Broken mounting buckle | 2. Replace defective terminals | |
| 3. Severe vibration | 3. Add fixing parts or shock-absorbing measures |
3.2 Daily Maintenance Schedule
| Ciclo | Maintenance Items | Puntos de operación |
| Semanalmente | Visual inspection | Check looseness, descoloramiento, cracks and dirt |
| Mensual | 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 | Function test | 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 Lista de modelos de serie
The PT 4 series covers multiple functional types to meet diverse wiring demands.
| Modelo | Número de pedido. | Características | Connection Quantity | Color | Solicitud |
| PT 4 | 3211757 | Basic through-type | 2 | Gris | Standard wire connection |
| PT 4 ESTE | 3211792 | Basic through-type | 2 | Azul | Distinguish different potentials/phases |
| PT 4 OG | 3211793 | Basic through-type | 2 | Orange | Distinguish different potentials/phases |
| PT 4-QUATTRO | 3211797 | 4-wire through type | 4 | Gris | 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 | Orange | 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 | Negro | Protección de circuito & conexión |
| PT 4-HESILED | 3207908 | Fuse holder + indicador LED | 2 | Negro | Protección de circuito & indicación de estado |
| PT 4-PE | 3211808 | Protective earth terminal | 2 | Green-yellow | Single-wire earthing |
Nota: All models support 0.2-6 alambres mm², 32Una corriente 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 |
| Corriente nominal | 32A | 32A | 32A | 32A |
| Tensión 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 conexión | Push-in | Screw-type | Push-in | Push-in |
| Ancho | 6.2milímetros | 6milímetros | 6.2milímetros | 6milímetros |
| Insulation Material | Pensilvania 6.6 (UL94V0) | Pensilvania 6.6 | Pensilvania 6.6 | Pensilvania 6.6 |
| Explosion-proof Cert. | ATEX, IECEx | Opcional | Ninguno | Opcional |
| Rango de temperatura | -60℃~+110℃ | -40℃~+100℃ | -40℃~+100℃ | -40℃~+100℃ |
| Nivel de precio | Medio | Medio | Alto | Medio |
| Ventajas principales | Low insertion force, explosion-proof certified, wide temperature resistance | High brand recognition, good system compatibility | Large wiring capacity, durable | Rentable, easy wiring |
- Cumplimiento de envíos aéreos & Certificaciones
6.1 Shipment Regulation
Categoría de producto: Electrical terminal blocks (no built-in battery, non-magnetic)
UN Number: No requerido, non-dangerous goods
Restricción de envío: Sin límites especiales, delivered as general cargo
Embalaje: Anti-static packaging to avoid static damage
Notice: Control stacking height during bulk shipment to prevent deformation
6.2 Detailed Certification Information
| Certificado | Estándar | Número de certificado. | Ámbito de aplicación | Key Requirements |
| CE | EN 60947-7-1 | Compliant | EU market | Comply with LVD & Directivas CEM |
| ATEX/IECEx | EN 60079-0, EN 60079-15 | II 2 G Ex eb IIC Gb | Hazardous Zone 1/2 | For explosive gas atmosphere |
| UL | UL 1059 | E257184 | América del norte | Meet North American electrical standards |
| CSA | CSA C22.2 No.157 | LR12345 | Canadá | Comply with Canadian safety codes |
| CCC | ES 14048.7 | 2.02001E+15 | Porcelana | Comply with Chinese national standards |
| RoHS | 2011/65/UE | Compliant | Global market | Restrict hazardous substances |
Nota: Relevant certification marks are printed on products and packages. Technical documents including test reports, declarations of conformity and certificates are available from Phoenix Contact.
- Directrices de selección & Reglas rápidas
Reglas de selección rápida
- Coincidencia actual: Continuous load ≤32A, transient peak ≤36A
- Selección de cables: Prioritize 1.5-4 mm² wires for most stable connection
- Color Code: Grey=standard potential; Blue/Orange=phase classification; Green-yellow=PE earthing
- Expansión de funciones: Multi-wire use QUATTRO series; fuse protection use HESI series; earthing use PE series
- Instalación: Use standard NS 35 Carril DIN, installation gap ≥2mm
- Aplicable & Escenarios inaplicables
Escenarios aplicables
- Automatización industrial: Wiring inside PLC cabinets, DCS systems and frequency converter cabinets
- Power control: Low-voltage distribution cabinets, MCC and power distribution systems
- Instrument & 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℃) industrial environments
- Mass production and frequent maintenance projects requiring fast wiring
Escenarios inaplicables
- Long-term load current over 36A (Recommend PT 6 serie)
- System voltage higher than 800V (Recommend dedicated high-voltage terminals)
- Wires smaller than 0.2 mm² (Recommend PT 2.5 serie)
- 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 alambres 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
Riesgo: Terminal overheating, accelerated insulation aging even fire hazard
Alternativa: PT 6 / PT 10 / PT 16 series high-current terminals
- Working voltage higher than 800V
Riesgo: 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 serie
– Wires thicker than 6 mm² → Use PT 6 serie
- Mismatched Mechanical & Connection Conditions
- Frequent plugging over 100 veces
Riesgo: 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
- Atmósfera corrosiva severa
- 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
