المقاولين,قاطع الدائرة,العاكس للطاقة الشمسية,عداد كهرباء,البطاريات الشمسية
(MN Type 125VDC Undervoltage Release)
Schneider LV429413 is an MN series undervoltage release specially designed for molded case circuit breakers of the Compact NSX, PowerPact Multistandard, and EasyPact CVS series. It has a rated voltage of 125VDC and uses screwless spring terminals. It is used for emergency stop or remote tripping control. When the control voltage drops below 35% من القيمة المقدرة, it automatically trips the circuit breaker to ensure system safety.
- تفسير رمز النموذج
| مقطع الكود | معنى |
| LV | Prefix for Schneider low-voltage power distribution products |
| 4294 | Product category identifier for undervoltage releases |
| 13 | Specific specification code corresponding to 125VDC rating, MN type, screwless terminals |
| MN | Product type code: Undervoltage Release; MX denotes Shunt Trip |
الميزات الأساسية: 125VDC operating voltage, suitable for 100-630A molded case circuit breakers, non-delay type, tripping threshold at 35% من الجهد المقنن.
- المعلمات التقنية الأساسية
| غرض | مواصفة |
| نوع المنتج | MN Type Undervoltage Release |
| Rated Control Voltage | 125VDC (not for AC systems) |
| Tripping Threshold | ≥ 35% من الجهد المقنن (تقريبا. 43.75VDC) |
| Reset Voltage | ≥ 85% من الجهد المقنن (تقريبا. 106.25VDC) |
| نوع المحطة | Screwless Spring Terminal |
| Compatible Breaker Series | Compact NSX 100–630A, PowerPact Multistandard, EasyPact CVS |
| Mounting Location | Accessory slot on front of circuit breaker |
| Wire Capacity | 1.5–2.5mm² cable |
| Ingress Protection | IP20 (when installed) |
| درجة حرارة التشغيل | -25درجة مئوية ~ +70 درجة مئوية |
| وزن | تقريبا. 50ز |
| الشهادات | اللجنة الانتخابية المستقلة 60947-2, أول 489, CSA C22.2 No. 5 |
- بيئة التطبيق
- System Types
Industrial automation control systems, data center UPS systems
DC power supply systems, emergency stop circuits
Remote monitoring and tripping applications
- Operating Conditions
Control voltage fluctuation: 85%-110% of rated value for stable operation
EMC performance: متوافق مع IEC 61000-4
Compatible frame sizes: 100أ, 160أ, 250أ, 400أ, 630أ (NSX series)
- متطلبات التثبيت
Must be installed in dedicated front accessory slot with reliable mechanical interlock
Control circuit to be protected by 1A fuse to prevent coil damage from short circuit
Observe polarity: “+” for positive, “-” for negative
- الإسناد الترافقي & نماذج الاستبدال
| Replacement Type | نموذج | ماركة | وصف |
| Direct Replacement | LV429414 | شنايدر | 220VAC version for AC control circuits |
| Equivalent Function | S29413 | شنايدر (Square D) | 125VDC undervoltage release for PowerPact series |
| Cross鈥態rand Alternative | ABB TA250-125DC | ايه بي بي | 125VDC undervoltage release for Tmax MCCBs |
| البديل المحلي | CHINT NXB-MN/125DC | شينت | For NXB series MCCBs |
- Official Ordering Information
| غرض | Details |
| Official Model | LV429413 (global part number) |
| Product Name | Undervoltage Release MN, Compact NSX, 125VDC, Screwless Terminal |
| Order Note | Must match corresponding breaker model, على سبيل المثال, NSX100N, NSX250F |
| Packing | Individual package including release body, manual, mounting screws |
| EAN Code | 3606480019029 |
| MOQ | 1 piece |
- Engineering Implementation
- Compatibility Check
Confirm breaker model: only for Compact NSX (100-630أ), PowerPact Multistandard, EasyPact CVS
Verify control voltage: strictly 125VDC, not for AC or other DC voltages
Ensure front slot available for MN/MX accessories
- خطوات التثبيت
- Disconnect main and control power to the breaker
- Remove front accessory cover
- Insert undervoltage release into slot and engage mechanical interlock
- Secure with supplied screws
- Wire 125VDC with correct polarity
- Refit cover and perform functional test
- التكليف
Trip test: reduce voltage below 43VDC; breaker must trip automatically
Reset test: restore voltage above 106VDC; breaker should close normally
Interlock check: breaker cannot be manually closed when release is activated until voltage recovers
- قائمة النماذج الكاملة (MN Series Undervoltage Releases)
| نموذج | الجهد المقنن | نوع المحطة | Compatible Series | ملاحظات |
| LV429400 | 24VAC/DC | Screw Terminal | NSX/CVS | معيار |
| LV429401 | 48VAC/DC | Screw Terminal | NSX/CVS | معيار |
| LV429402 | 110VAC/DC | Screw Terminal | NSX/CVS | معيار |
| LV429403 | 220VAC/DC | Screw Terminal | NSX/CVS | معيار |
| LV429410 | 24VDC | Screwless Terminal | NSX/CVS | Spring Terminal |
| LV429411 | 48VDC | Screwless Terminal | NSX/CVS | Spring Terminal |
| LV429412 | 110VDC | Screwless Terminal | NSX/CVS | Spring Terminal |
| LV429413 | 125VDC | Screwless Terminal | NSX/CVS | Spring Terminal |
| LV429414 | 220بطالة | Screwless Terminal | NSX/CVS | Spring Terminal |
| LV429415 | 230بطالة | Screwless Terminal | NSX/CVS | Spring Terminal |
- المخاطر & Warnings
- مطابقة الجهد: This model is only for 125VDC control circuits. Applying AC or incorrect DC voltage will burn the coil and damage the unit.
- Polarity: DC polarity must be observed; reversed connection causes failure or circuit damage.
- حماية التيار الزائد: Install 1A fast-acting fuse in control circuit to protect coil.
- التعشيق الميكانيكي: Ensure reliable engagement; خلاف ذلك, false tripping or failure to trip may occur.
- Ambient Limits: Do not use above +70°C or below -25°C to avoid performance degradation.
- صيانة: Regularly check control voltage stability (85%-110% of rated) to prevent excessive mechanical wear from frequent undervoltage tripping.
