All three models are CHAMPIÑÓN PNOZ X2 compact basic safety relays, perteneciente a la serie PILZ classic X. Están diseñados para el monitoreo de circuitos de seguridad de equipos industriales., mainly overseeing safety components such as emergency stop buttons, puertas de seguridad, safety light curtains and two-hand control units. The three products feature identical contact configuration, functions and dimensions, differing only in supply voltage. Equipped with standard automatic reset and dual-channel safety design, they comply with machinery safety standards Cat.3 / pl d / SIL 2.
- Explicación del código del modelo
1.1 General Rules for Brand & Serie
CHAMPIÑÓN: Marca (a German professional safety automation manufacturer)
772140 / 772142 / 772143: Unique factory part numbers of PILZ
PNOSIS: Main series code for PILZ safety relays
incógnita: X Series – Compact general-purpose safety relays, DIN rail mounted, cost-effective basic type
2: Contact configuration code – 2 sets of force-guided safety normally open (NO) contactos
1.2 Model Correspondence Table
| Número de pieza de fábrica. | Modelo completo | Voltaje de suministro | Diferencia clave |
| 772140 | PNOZ X2 24V AC/DC | 24VCA/CC | Most widely used in industrial control, compatible with DC systems for PLCs and sensors |
| 772142 | PNOZ X2 110V AC | 110V y | Suited for Japanese-style equipment and power supply systems in some overseas regions |
| 772143 | PNOZ X2 230V AC | 230V y | Matches domestic industrial mains power and European standard AC systems |
Nota: All three models adopt automatic reset without manual reset function. Built-in dual-channel safety detection and force-guided contacts (core safety structure of safety relays to prevent failure caused by contact welding).
- Especificaciones técnicas básicas
Except for supply voltage, all electrical, mechanical and safety parameters are identical for the three models, as summarized below:
| Categoría | Artículo | Presupuesto | Observaciones |
| Basic Properties | Tipo de producto | Dual-channel Safety Relay | Dual-channel monitoring for safety circuits, compliant with machinery safety regulations |
| Contactos de seguridad | 2 × Force-guided Normally Open (NO) Contactos | Sin contactos auxiliares, pure safety output | |
| Modo de reinicio | Reinicio automático | Automatically restarts after safety circuit recovers, no manual button required | |
| Montaje | Standard 35mm DIN Rail Mount | Universal installation for control cabinets | |
| Protección de ingreso | IP40 | For indoor cabinet use; a prueba de polvo, not resistant to water splashing | |
| Parámetros eléctricos | Tensión de funcionamiento nominal | 772140: 24VCA/CC | Coil supply voltage |
| 772142: 110V y | |||
| 772143: 230V y | |||
| Rated Contact Load AC-15 | 230V / 6A | Applicable to resistive and inductive loads | |
| Rated Contact Load DC-13 | 24V / 6A | Load capacity for DC circuits | |
| máx.. Voltaje de conmutación | 250V y / 30En DC | Upper voltage limit for output circuits | |
| Typical Response Time | <20 ms | Fast safety actuation to ensure reliable emergency stop | |
| Consumo de energía | Aprox.. 2.5W. | Baja pérdida de energía, low heat generation during long-term operation | |
| Parámetros ambientales | Temperatura de funcionamiento | 0℃ ~ +55 ℃ | Standard industrial control environment |
| Temperatura de almacenamiento | -25℃ ~ +70℃ | Temperature range for storage and transportation | |
| Humedad relativa | 10% ~ 90% (Sin condensación) | Condensation and frost are prohibited | |
| Safety Ratings | Machinery Safety Category | Gato. 3 | Cumple con ENISO 13849-1 |
| Nivel de rendimiento | pl d | Standard safety level for mainstream automated equipment | |
| Safety Integrity Level | SIL 2 | Cumple con IEC 61508 functional safety standard | |
| Certificaciones | Aprobaciones | TUV, CE, cULus | Globally recognized industrial certifications, eligible for export |
| Físico & Alambrado | Dimensiones (Ancho × Alto × Fondo) | 22.5 × 94 × 120 milímetros | Narrow compact design, ahorra espacio en el gabinete |
| Tipo de conexión | Terminales de tornillo | Reliable wiring, suitable for environments with mechanical vibration | |
| Peso | Aprox.. 140 gramo | Lightweight rail-mounted module |
- Full Range List (PNOZ X2 Family)
Same structure and contact configuration; differentiated only by voltage and reset mode for convenient replacement and selection:
| Número de pieza. | Modelo completo | Voltaje de suministro | Modo de reinicio | Descripción |
| 772140 | PNOZ X2 24V AC/DC | 24VCA/CC | Reinicio automático | Mainstream standard model |
| 772141 | PNOZ X2 48V AC | 48V y | Reinicio automático | Special low-volume voltage version |
| 772142 | PNOZ X2 110V AC | 110V y | Reinicio automático | For 110V AC power systems |
| 772143 | PNOZ X2 230V AC | 230V y | Reinicio automático | For 220/230V mains systems |
| 772100 | PNOZ X2 24V AC/DC | 24VCA/CC | Reinicio manual | Requires external reset button for high-safety applications |
Extended: Main Related Models of PNOZ X Series
| Modelo | Configuración de contacto | Posición de aplicación |
| PNOZ X1 | 1 Safety Normally Open Contact | Basic single safety circuit monitoring |
| PNOZ X3 | 3 Safety Normally Open + 1 Auxiliary Normally Closed Contact | Multiple output circuits with signal feedback |
| PNOZ X4 | 4 Safety Normally Open Contacts | Synchronous cut-off for multiple loads |
- Cross-Generation & Reemplazo entre marcas
4.1 Internal Replacement within PILZ
Estado del producto: 772140/772142/772143 (PNOZ X2) are active mass-production models, no obsolescence or direct discontinued replacements.
Alternativas mejoradas (Mayor rendimiento, compatible con versiones anteriores):
PNOZ X2.8P: Equipped with diagnostic output and optimized terminals; pin-compatible for direct replacement.
PNOZ X3: Recommended if additional auxiliary feedback contacts are required.
Downgraded Replacement: No disponible. PNOZ X2 is the entry-level model of X series.
4.2 Equivalentes entre marcas (Same Safety Rating: Cat.3 / pl d)
| Marca | Modelo | Voltaje de suministro | Configuración de contacto | Nota de compatibilidad |
| Schmersal | SRB 301ST | 24V/110V/230V | 2 NO Safety Contacts | Identical function and rating, similar wiring logic |
| SIEMENS | 3TK2821 | 24VCA/CC / 230V y | 2 NO Safety Contacts | Popular German alternative, universal DIN rail mounting |
| Electricidad Schneider | XPSAC01 | 24V/230V | 2 NO Safety Contacts | Preferred for cabinets with Schneider components |
| TEJIDO | JSBR4 | 24V/230V | 2 NO Safety Contacts | Widely used for European and American projects |
| Weidmüller | SEGURO-SR2 | 24VCA/CC | 2 SIN contactos | Cost-effective option for domestic control cabinets |
Important Reminder: Always verify wiring diagrams and safety circuit logic when replacing safety components. Do not replace merely based on appearance to avoid safety hazards.
4.3 Alternativas nacionales
Modelos recomendados: IDEC HR1S, Tianyi safety relays
Escenarios aplicables: Non-high-risk equipment and ordinary domestic automated production lines
Restrictions: Not recommended for high-end export equipment, robotic systems, presses and stamping machines.
- Entornos de aplicación & Casos de la industria
5.1 Principales escenarios de aplicación
This universal safety relay is used for industrial equipment requiring safe power circuit cut-off. Typical monitored components:
- Emergency stop circuit (full equipment emergency shutdown)
- Mechanical safety gates and guard switches (power cut-off once gates are opened)
- Safety light curtains and area scanners (shutdown protection when personnel enter hazardous areas)
- Two-hand control buttons (prevent misoperation on pressing and riveting machines)
- Safety limit switches and travel safety contacts
5.2 Industrias aplicables
Machine Tool Processing: Tornos, fresadoras, centros de mecanizado, muelas
Embalaje & Logística: Máquinas de embalaje, palletizers, transportadores, equipo de clasificación
Fabricación de automóviles: Soldadura, assembly and coating production lines
Goma & Inyección de plástico: Máquinas de moldeo por inyección, extrusoras, die-cutting equipment
Automatización general: Robotic workstations, custom automated machinery
Maquinaria para la industria ligera: Impresión, textile and food processing equipment
5.3 Suitable Operating Conditions
Standard indoor control cabinets, normal temperature, dust-free or slightly dusty environments
Conventional power frequency systems (24V/110V/230V power supply)
Circuits with frequent start-stop and demand for rapid safety cut-off
5.4 Escenarios no recomendados (Precauciones)
- Explosion-proof Areas: Sin certificación a prueba de explosiones. Use dedicated PILZ explosion-proof safety relays for explosive workshops.
- Outdoor Exposure / High Humidity & Condensation: IP40 protection is insufficient; an additional protective enclosure is required.
- Severe Electromagnetic Interference: (Near high-frequency welders or large inverters) Shielding measures and independent earthing are necessary.
- Overload Operation: Contact current must not exceed 6A. Add intermediate contactors for high-power loads.
- Ambient Temperature above 55℃: Will shorten service life of safety contacts and cause false tripping.
5.5 Casos de aplicación típicos
Caso 1: Safety Protection for Vertical Machining Center
Configuración: 772140 (24VCA/CC) + Safety gate switch + Emergency stop button
Función: Opening the equipment guard gate → Safety relay actuates → Cuts off power to spindle and feed motors; Automatic reset and restart after gate closure.
Beneficios: Complies with machine safety standards and prevents personnel from entering mechanical hazardous zones.
Caso 2: Food Flow Wrapper
Configuración: 772143 (230V y) + Cortina de luz de seguridad
Función: If operators accidentally reach into the operating area → Light curtain triggers → Relay cuts off main drive power.
Beneficios: IP40 rating adapts to slight water vapor in workshops; automatic reset ensures continuous production.
- Guía de selección de modelos
Reglas de referencia rápida
- The three part numbers differ only in coil voltage, with identical appearance, contacts and functions:
772140 = 24V AC/DC (Universal, first choice)
772142 = 110V AC (For Japanese-style and overseas equipment)
772143 = 230V AC (For domestic 220V mains power)
- PNOZ X2 = 2 contactos NA de seguridad + Reinicio automático
- Prioridad de selección: Confirm control cabinet supply voltage first, then verify reset mode (automático / manual).
- Solución de problemas
| Fenómeno de falla | Probable Cause | Solución |
| Indicador de encendido apagado, no response | Broken coil wiring, terminales sueltos, corte de energía | Medir el voltaje de entrada, apretar los tornillos, check upstream circuit breakers and fuses |
| Frecuentes disparos en falso | Loose wiring in safety circuit, interferencia electromagnética, poor contact of gate switches | Re-crimp terminals, route cables away from power lines, replace worn safety switches |
| Safety circuit normal but relay fails to energize | Aged internal contacts, bobina dañada, end of service life | Replace with an identical safety relay (Safety components are not repairable) |
| Output contacts cannot open (welded) | Sobrecarga a largo plazo, cortocircuito de carga, frequent high-current surges | Reemplazar el relé; add intermediate contactors for current division; never exceed 6A rated current |
| Abnormal reset, failed automatic restart | Incomplete closure of safety circuit, line short to ground | Check continuity of the entire safety circuit and eliminate short circuits |
Safety Regulation: Faulty safety relays are prohibited from disassembly and repair. The complete unit must be replaced.
- Realizar pedidos, Embalaje & Cumplimiento
8.1 Ordering Details
| Número de pieza de fábrica. | Modelo completo | Voltaje de suministro | Embalaje estándar |
| 772140 | PNOZ X2 24V AC/DC | 24VCA/CC | 1 unidad por caja |
| 772142 | PNOZ X2 110V AC | 110V y | 1 unidad por caja |
| 772143 | PNOZ X2 230V AC | 230V y | 1 unidad por caja |
8.2 Comercial & Storage Information
Cantidad mínima de pedido: 1 pedazo
Origen: Alemania (Original PILZ product)
Sugerencia de repuestos: Preparar 1 unit of corresponding voltage model for every 10 sets of similar equipment
Estado del producto: Mass production, long-term stable supply
8.3 Logistics Compliance
No lithium batteries, supercapacitors or hazardous materials inside. Classified as general low-voltage electrical component.
No special restrictions for air, transporte marítimo y terrestre; no additional dangerous goods declaration required.
8.4 Estándares & Aprobaciones
Normas aplicables: EN ISO 13849-1, CEI 61508, EN 60947-5-1
Certificaciones: CE, TUV, UL. Approved for use in EU, North America and most regions worldwide.
- Suplementario: Basic Wiring Instructions
- Fuente de alimentación de la bobina: Apply corresponding rated voltage to coil terminals (A1/A2).
- Safety Input Circuit: Wire emergency stop buttons and safety gates in series to dual-channel inputs.
- Safety Output Circuit: Conectar 2 sets of NO safety contacts in series to the control circuit of main contactors.
- Principio de cableado: Adopt series connection for safety circuits. The relay will immediately cut off outputs once any safety component opens.
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