المقاولين,قاطع الدائرة,العاكس للطاقة الشمسية,عداد كهرباء,البطاريات الشمسية
Siemens 3SE3120-1E Heavy-Duty Metal Enclosure تبديل الحد (Travel Switch)
SIRIUS 3SE3 series heavy-duty limit switch with metal enclosure, equipped with 1NO+1NC snap-action contacts and roller lever actuator. Rated IP67, it is suitable for harsh industrial environments.
شرح كود النموذج
| مقطع الكود | وصف |
| 3SE3 | Siemens SIRIUS series heavy-duty limit switch with metal enclosure |
| 120 | النموذج الأساسي: 40mm wide housing, Pg13.5 cable gland, double-break snap-action contacts |
| -1ه | المحرك: Standard single roller lever, 1NO+1NC contact configuration |
Important Notice: This model has been discontinued. The official replacement is 3SE5112-0CE01.
المواصفات الفنية
| غرض | المعلمة | ملاحظات |
| تكوين الاتصال | 1 مفتوح عادة (لا) + 1 مغلق عادة (نورث كارولاينا) | Double-break snap-action design |
| التصنيف الحالي / الجهد االكهربى | 10أ / 500الخامس و | ايه سي-15: 2.5أ / 400V |
| 10أ / 600في العاصمة | دي سي-13: 0.4أ / 24V | |
| آلية التشغيل | رافعة بكرة واحدة | الحياة الميكانيكية ≥ 10,000,000 العمليات |
| مواد الإسكان | Die-cast aluminium | Robust and impact-resistant |
| حماية الدخول | IP67 | Dust-tight and water-resistant; temporary immersion permitted |
| Cable Entry | Pg13.5 cable gland | Suitable for cables with outer diameter 9-14mm |
| نوع التركيب | Surface mounting / تركيب السكك الحديدية DIN | Compatible with various mounting brackets |
| درجة الحرارة المحيطة | -25°C ~ +80°C | Adaptable to harsh working conditions |
| معايير الامتثال | اللجنة الانتخابية المستقلة 60947-5-1, في 50041, VDE 0660 | Compliant with international industrial safety standards |
| الحياة الميكانيكية | ≥ 10,000,000 العمليات | الحياة الكهربائية ≥ 100,000 operations under rated load |
Cross-Brand Replacement List (Direct Replacement)
| ماركة | نموذج | التوافق | السعر المرجعي (يوان صيني) | المزايا |
| سيمنز (استبدال) | 3SE5112-0CE01 | 100% | 450-550 | Official replacement, fully compatible |
| شنايدر إلكتريك | XCKN2118P16 | 95% | 380-480 | Identical contact configuration, IP67 rated |
| ايه بي بي | LS31P11 | 90% | 350-420 | Cost-effective with global warranty |
| شينت (محلي) | YBLX-ME/8108 | 90% | 120-180 | Competitive price, fast local delivery |
| لذيذ (محلي) | LXK3-20S/T | 85% | 100-150 | Economical choice for bulk replacement |
Common Models of 3SE3 Series
- Standard Roller Lever (1لا + 1NC)
| نموذج | Actuator Description | نموذج الاستبدال |
| 3SE3120-1E | رافعة بكرة واحدة | 3SE5112-0CE01 |
| 3SE3120-1G | Dual roller lever | 3SE5112-0CE11 |
| 3SE3120-1H | Adjustable roller lever | 3SE5112-0CE21 |
- Other Actuator Types
| نموذج | Actuator Description | تكوين الاتصال |
| 3SE3122-1E | Straight plunger | 1لا + 1NC |
| 3SE3124-1E | Fork lever | 1لا + 1NC |
| 3SE3126-1E | Adjustable fork lever | 1لا + 1NC |
| 3SE3130-1E | Rotary lever | 1لا + 1NC |
- Dual Contact Configuration (2لا + 2NC)
| نموذج | Actuator Description | تكوين الاتصال |
| 3SE3120-2E | رافعة بكرة واحدة | 2لا + 2NC |
| 3SE3120-2G | Dual roller lever | 2لا + 2NC |
استكشاف الأخطاء وإصلاحها & دليل الصيانة
- الأخطاء الشائعة & الحلول
| ظاهرة الخلل | الأسباب المحتملة | Inspection Steps | الحلول |
| Contacts fail to operate | 1. Jammed lever | 1. Check smooth mechanical movement | 1. Remove foreign matters and lubricate the shaft |
| 2. Damaged return spring | 2. Test spring reset force | 2. Replace the spring | |
| 3. Worn contacts | 3. قياس مقاومة الاتصال | 3. Replace contact assembly | |
| التصاق الاتصال | 1. عملية الزائد | 1. Verify load against rated value | 1. Reduce load or select higher-capacity model |
| 2. Arc erosion | 2. Check contact surface for burn marks | 2. استبدال جهات الاتصال | |
| 3. Excessive dust accumulation | 3. Inspect sealing integrity | 3. Renew seals for better protection | |
| Unstable signal | 1. الأسلاك فضفاضة | 1. Tighten terminal connections | 1. Retighten cables |
| 2. Oxidized contacts | 2. قياس مقاومة الاتصال | 2. Clean contact surfaces | |
| 3. Excessive vibration | 3. Check mounting tightness | 3. Add vibration damping measures |
- Periodic Maintenance Schedule
| عنصر الصيانة | Interval | عملية |
| التفتيش البصري | شهريا | Check housing damage and sealing condition |
| Mechanical Operation Test | ربع سنوية | Manually actuate the lever to ensure smooth movement |
| Contact Performance Test | Semi-annually | قياس مقاومة الاتصال, ensure value ≤ 50mΩ |
| تنظيف & تشحيم | سنويا | Remove internal dust; lubricate shafts with silicone grease |
| Seal Replacement | كل 2 سنين | Replace cable glands and O-rings |
طلب & حالات الصناعة
- السيناريوهات القابلة للتطبيق
أدوات الآلة: Travel limit for worktables and position detection for cutting tools
خطوط الإنتاج الآلي: Conveyor positioning and workpiece detection
Lifting Equipment: Travel limit protection and anti-collision detection
ماكينات التعبئة والتغليف: Position control for cutting & sealing and roll tension detection
Metallurgical Industry: Position detection under high temperature (heat shield required)
- Non-Recommended Scenarios
Severely Corrosive Environments: Direct exposure to acid or alkaline solutions (stainless steel enclosure model recommended)
Explosive Hazardous Areas: Adopt explosion-proof limit switches of 3SE5 series
High-Precision Positioning: For accuracy within ±0.1mm, proximity switches or encoders are preferred
- حالات التطبيق
قضية 1: Automotive Stamping Production Line
طلب: Travel limit protection for stamping press slides
حل: Install 3SE3120-1E at upper and lower limit positions to cut off power when the slide reaches the limit
Result: Prevent equipment overload damage, improve operational safety; annual failure rate < 0.5%
قضية 2: Automated AS/RS Warehouse
طلب: Rail limit and cargo location detection for stackers
حل: Mount 3SE3120-1E at rail ends and cargo positions to realize precise positioning and safety protection
Result: Improve automation level, reduce manual intervention; positioning accuracy up to ±5mm
- 3SE3 series features metal housing and IP67 protection; 1E stands for single roller lever with 1NO+1NC contacts.
- Choose metal enclosure for heavy-duty use, and plastic enclosure (3SE5) for light-duty applications.
- For the discontinued model, use 3SE5112-0CE01 as direct replacement.
- Domestic alternatives from Chint and Delixi cut costs by half while retaining around 90% performance.
