المقاولين,قاطع الدائرة,العاكس للطاقة الشمسية,عداد كهرباء,البطاريات الشمسية
All three models are PILZ PNOZ X2 compact basic safety relays, belonging to PILZ classic X series. They are designed for safety circuit monitoring of industrial equipment, mainly overseeing safety components such as emergency stop buttons, safety gates, 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 / سيل 2.
- شرح كود النموذج
1.1 General Rules for Brand & مسلسل
PILZ: ماركة (a German professional safety automation manufacturer)
772140 / 772142 / 772143: Unique factory part numbers of PILZ
PNOZ: Main series code for PILZ safety relays
X: 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 (لا) اتصالات
1.2 Model Correspondence Table
| Factory Part No. | النموذج الكامل | جهد الإمداد | الفرق الرئيسي |
| 772140 | PNOZ X2 24V AC/DC | 24الخامس التيار المتناوب/تيار مستمر | Most widely used in industrial control, compatible with DC systems for PLCs and sensors |
| 772142 | PNOZ X2 110V AC | 110الخامس و | Suited for Japanese-style equipment and power supply systems in some overseas regions |
| 772143 | PNOZ X2 230V AC | 230الخامس و | Matches domestic industrial mains power and European standard AC systems |
ملحوظة: 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).
- المواصفات الفنية الأساسية
Except for supply voltage, all electrical, mechanical and safety parameters are identical for the three models, as summarized below:
| فئة | غرض | تحديد | ملاحظات |
| Basic Properties | نوع المنتج | Dual-channel Safety Relay | Dual-channel monitoring for safety circuits, compliant with machinery safety regulations |
| اتصالات السلامة | 2 × Force-guided Normally Open (لا) اتصالات | لا توجد اتصالات مساعدة, pure safety output | |
| وضع إعادة الضبط | إعادة الضبط التلقائي | Automatically restarts after safety circuit recovers, no manual button required | |
| تصاعد | Standard 35mm DIN Rail Mount | Universal installation for control cabinets | |
| حماية الدخول | IP40 | For indoor cabinet use; مقاوم للغبار, not resistant to water splashing | |
| المعلمات الكهربائية | تصنيف جهد التشغيل | 772140: 24الخامس التيار المتناوب/تيار مستمر | Coil supply voltage |
| 772142: 110الخامس و | |||
| 772143: 230الخامس و | |||
| Rated Contact Load AC-15 | 230V / 6أ | Applicable to resistive and inductive loads | |
| Rated Contact Load DC-13 | 24V / 6أ | Load capacity for DC circuits | |
| الأعلى. Switching Voltage | 250الخامس و / 30في العاصمة | Upper voltage limit for output circuits | |
| Typical Response Time | ＜20 ms | Fast safety actuation to ensure reliable emergency stop | |
| استهلاك الطاقة | تقريبا. 2.5دبليو | Low power loss, low heat generation during long-term operation | |
| المعلمات البيئية | درجة حرارة التشغيل | 0درجه مئوية ~ +55 درجه مئوية | Standard industrial control environment |
| درجة حرارة التخزين | -25درجه مئوية ~ +70 درجه مئوية | Temperature range for storage and transportation | |
| الرطوبة النسبية | 10% ~ 90% (غير التكثيف) | Condensation and frost are prohibited | |
| Safety Ratings | Machinery Safety Category | Cat. 3 | Compliant with EN ISO 13849-1 |
| مستوى الأداء | PL d | Standard safety level for mainstream automated equipment | |
| Safety Integrity Level | سيل 2 | متوافق مع IEC 61508 functional safety standard | |
| الشهادات | Approvals | توف, م, cULus | Globally recognized industrial certifications, eligible for export |
| بدني & الأسلاك | أبعاد (W × H × D) | 22.5 × 94 × 120 مم | Narrow compact design, يوفر مساحة الخزانة |
| نوع الاتصال | Screw Terminals | Reliable wiring, suitable for environments with mechanical vibration | |
| وزن | تقريبا. 140 ز | 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:
| رقم الجزء. | النموذج الكامل | جهد الإمداد | وضع إعادة الضبط | وصف |
| 772140 | PNOZ X2 24V AC/DC | 24الخامس التيار المتناوب/تيار مستمر | إعادة الضبط التلقائي | Mainstream standard model |
| 772141 | PNOZ X2 48V AC | 48الخامس و | إعادة الضبط التلقائي | Special low-volume voltage version |
| 772142 | PNOZ X2 110V AC | 110الخامس و | إعادة الضبط التلقائي | For 110V AC power systems |
| 772143 | PNOZ X2 230V AC | 230الخامس و | إعادة الضبط التلقائي | For 220/230V mains systems |
| 772100 | PNOZ X2 24V AC/DC | 24الخامس التيار المتناوب/تيار مستمر | إعادة الضبط اليدوي | Requires external reset button for high-safety applications |
Extended: Main Related Models of PNOZ X Series
| نموذج | تكوين الاتصال | موقف التطبيق |
| 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 & Cross-Brand Replacement
4.1 Internal Replacement within PILZ
حالة المنتج: 772140/772142/772143 (PNOZ X2) are active mass-production models, no obsolescence or direct discontinued replacements.
Upgraded Alternatives (Higher performance, backward compatible):
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: Not available. PNOZ X2 is the entry-level model of X series.
4.2 Cross-Brand Equivalents (Same Safety Rating: Cat.3 / PL d)
| ماركة | نموذج | جهد الإمداد | تكوين الاتصال | ملاحظة التوافق |
| Schmersal | SRB 301ST | 24V/110V/230V | 2 NO Safety Contacts | Identical function and rating, similar wiring logic |
| SIEMENS | 3TK2821 | 24الخامس التيار المتناوب/تيار مستمر / 230الخامس و | 2 NO Safety Contacts | Popular German alternative, universal DIN rail mounting |
| شنايدر إلكتريك | XPSAC01 | 24فولت/230 فولت | 2 NO Safety Contacts | Preferred for cabinets with Schneider components |
| ايه بي بي | JSBR4 | 24فولت/230 فولت | 2 NO Safety Contacts | Widely used for European and American projects |
| فايدمولر | SAFE-SR2 | 24الخامس التيار المتناوب/تيار مستمر | 2 NO Contacts | 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 البدائل المحلية
النماذج الموصى بها: IDEC HR1S, Tianyi safety relays
السيناريوهات القابلة للتطبيق: Non-high-risk equipment and ordinary domestic automated production lines
Restrictions: Not recommended for high-end export equipment, robotic systems, presses and stamping machines.
- Application Environments & حالات الصناعة
5.1 سيناريوهات التطبيق الرئيسية
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 Applicable Industries
Machine Tool Processing: Lathes, milling machines, machining centers, المطاحن
التعبئة والتغليف & اللوجستية: Packaging machines, palletizers, الناقلات, sorting equipment
Automotive Manufacturing: Welding, assembly and coating production lines
Rubber & Plastic Injection: Injection molding machines, بثق, die-cutting equipment
الأتمتة العامة: Robotic workstations, custom automated machinery
Light Industry Machinery: Printing, 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 Not Recommended Scenarios (احتياطات)
- Explosion-proof Areas: No explosion-proof certification. 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 حالات التطبيق النموذجية
قضية 1: Safety Protection for Vertical Machining Center
إعدادات: 772140 (24الخامس التيار المتناوب/تيار مستمر) + Safety gate switch + Emergency stop button
وظيفة: Opening the equipment guard gate → Safety relay actuates → Cuts off power to spindle and feed motors; Automatic reset and restart after gate closure.
Benefits: Complies with machine safety standards and prevents personnel from entering mechanical hazardous zones.
قضية 2: Food Flow Wrapper
إعدادات: 772143 (230الخامس و) + Safety light curtain
وظيفة: If operators accidentally reach into the operating area → Light curtain triggers → Relay cuts off main drive power.
Benefits: IP40 rating adapts to slight water vapor in workshops; automatic reset ensures continuous production.
- دليل اختيار النموذج
Quick Reference Rules
- The three part numbers differ only in coil voltage, with identical appearance, contacts and functions:
772140 = 24V AC/DC (عالمي, first choice)
772142 = 110V AC (For Japanese-style and overseas equipment)
772143 = 230V AC (For domestic 220V mains power)
- PNOZ X2 = 2 safety NO contacts + إعادة التعيين التلقائي
- Selection Priority: Confirm control cabinet supply voltage first, then verify reset mode (automatic / manual).
- استكشاف الأخطاء وإصلاحها
| ظاهرة الخلل | Probable Cause | حل |
| مؤشر الطاقة مطفأ, no response | Broken coil wiring, loose terminals, power failure | Measure input voltage, tighten screws, check upstream circuit breakers and fuses |
| التعثر الكاذب المتكرر | Loose wiring in safety circuit, electromagnetic interference, 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, damaged coil, end of service life | Replace with an identical safety relay (Safety components are not repairable) |
| Output contacts cannot open (welded) | Long-term overload, load short circuit, frequent high-current surges | استبدل التتابع; 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.
- الطلب, التعبئة والتغليف & امتثال
8.1 Ordering Details
| Factory Part No. | النموذج الكامل | جهد الإمداد | Standard Packaging |
| 772140 | PNOZ X2 24V AC/DC | 24الخامس التيار المتناوب/تيار مستمر | 1 unit per box |
| 772142 | PNOZ X2 110V AC | 110الخامس و | 1 unit per box |
| 772143 | PNOZ X2 230V AC | 230الخامس و | 1 unit per box |
8.2 Commercial & Storage Information
Minimum Order Quantity: 1 piece
أصل: ألمانيا (Original PILZ product)
Spare Parts Suggestion: Prepare 1 unit of corresponding voltage model for every 10 sets of similar equipment
حالة المنتج: 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, sea and land transportation; no additional dangerous goods declaration required.
8.4 المعايير & Approvals
المعايير المعمول بها: في ايزو 13849-1, اللجنة الانتخابية المستقلة 61508, في 60947-5-1
الشهادات: م, توف, أول. Approved for use in EU, North America and most regions worldwide.
- Supplementary: Basic Wiring Instructions
- Coil Power Supply: 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: Connect 2 sets of NO safety contacts in series to the control circuit of main contactors.
- Wiring Principle: Adopt series connection for safety circuits. The relay will immediately cut off outputs once any safety component opens.
