Контактор,автоматический выключатель,солнечный инвертор,электрический счетчик,солнечные батареи
(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% номинальной стоимости, it automatically trips the circuit breaker to ensure system safety.
- Интерпретация кода модели
| Сегмент кода | Значение |
| 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: Расцепитель пониженного напряжения; MX denotes Shunt Trip |
Основные функции: 125VDC operating voltage, suitable for 100-630A molded case circuit breakers, non-delay type, tripping threshold at 35% of rated voltage.
- Основные технические параметры
| Элемент | Спецификация |
| Тип продукта | MN Type Undervoltage Release |
| Rated Control Voltage | 125В постоянного тока (not for AC systems) |
| Tripping Threshold | ≤ 35% of rated voltage (приблизительно. 43.75В постоянного тока) |
| Reset Voltage | ≥ 85% of rated voltage (приблизительно. 106.25В постоянного тока) |
| Тип терминала | 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 |
| Защита от проникновения | IP20 (when installed) |
| Рабочая температура | -25°С ~ +70°С |
| Масса | Приблизительно. 50г |
| Сертификаты | МЭК 60947-2, UL 489, CSA C22.2 No. 5 |
- Application Environment
- System Types
Industrial automation control systems, data center UPS systems
DC power supply systems, emergency stop circuits
Remote monitoring and tripping applications
- Условия эксплуатации
Control voltage fluctuation: 85%-110% of rated value for stable operation
EMC performance: Соответствует МЭК 61000-4
Compatible frame sizes: 100А, 160А, 250А, 400А, 630А (NSX series)
- Требования к установке
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
- Cross-Reference & Сменные модели
| Replacement Type | Модель | Бренд | Описание |
| Direct Replacement | LV429414 | Шнайдер | 220VAC version for AC control circuits |
| Equivalent Function | S29413 | Шнайдер (Квадрат Д) | 125VDC undervoltage release for PowerPact series |
| Cross鈥態rand Alternative | ABB TA250-125DC | АББ | 125VDC undervoltage release for Tmax MCCBs |
| Domestic Alternative | CHINT NXB-MN/125DC | ЧИНТ | For NXB series MCCBs |
- Official Ordering Information
| Элемент | Подробности |
| Official Model | LV429413 (global part number) |
| Название продукта | Undervoltage Release MN, Compact NSX, 125В постоянного тока, Screwless Terminal |
| Order Note | Must match corresponding breaker model, например, NSX100N, НСХ250Ф |
| Packing | Individual package including release body, руководство, mounting screws |
| EAN Code | 3606480019029 |
| минимальный заказ | 1 piece |
- Engineering Implementation
- Проверка совместимости
Confirm breaker model: only for Compact NSX (100-630А), PowerPact Multistandard, EasyPact CVS
Verify control voltage: strictly 125VDC, not for AC or other DC voltages
Ensure front slot available for MN/MX accessories
- Этапы установки
- 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
- Commissioning
Тест поездки: 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
- Complete Model List (MN Series Undervoltage Releases)
| Модель | Номинальное напряжение | Тип терминала | Compatible Series | Примечания |
| LV429400 | 24В переменного/постоянного тока | Screw Terminal | NSX/CVS | Стандартный |
| LV429401 | 48В переменного/постоянного тока | Screw Terminal | NSX/CVS | Стандартный |
| LV429402 | 110В переменного/постоянного тока | Screw Terminal | NSX/CVS | Стандартный |
| LV429403 | 220В переменного/постоянного тока | Screw Terminal | NSX/CVS | Стандартный |
| LV429410 | 24В постоянного тока | Screwless Terminal | NSX/CVS | Spring Terminal |
| LV429411 | 48В постоянного тока | Screwless Terminal | NSX/CVS | Spring Terminal |
| LV429412 | 110В постоянного тока | Screwless Terminal | NSX/CVS | Spring Terminal |
| LV429413 | 125В постоянного тока | Screwless Terminal | NSX/CVS | Spring Terminal |
| LV429414 | 220ВАК | Screwless Terminal | NSX/CVS | Spring Terminal |
| LV429415 | 230ВАК | Screwless Terminal | NSX/CVS | Spring Terminal |
- Risks & Warnings
- Согласование напряжения: 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.
- Защита от перегрузки по току: Install 1A fast-acting fuse in control circuit to protect coil.
- Механическая блокировка: Ensure reliable engagement; в противном случае, false tripping or failure to trip may occur.
- Ambient Limits: Do not use above +70°C or below -25°C to avoid performance degradation.
- Обслуживание: Regularly check control voltage stability (85%-110% of rated) to prevent excessive mechanical wear from frequent undervoltage tripping.
