- Preliminary Requirements & Compliance Scope
- Define Core Parameters
Власть: System voltage (230/400V AC single-phase/three-phase), total capacity, number of circuits, branch current, short-circuit breaking capacity (Icu/Ics);
Среда: Indoor/outdoor, IP-рейтинг (IP30 for indoor, IP54 for outdoor splash-proof, IP66 for corrosion-resistant), material (cold-rolled steel sheet / 304 / 316 stainless steel), метод установки (wall-mounted / floor-standing / flush-mounted);
Функции: Измерение (multi-function electricity meter), surge protection (СПД), dual-power ATS switching, удаленный мониторинг (Modbus/485), fire protection interlock.
- Mandatory Standards: МЭК 61439, ГБ 7251.1, low-voltage switchgear assembly standards; components must be original Schneider (например, MCCB NSX/XT, MCB EA9/A9, ATS WATSN, и т. д.); equipped with CCC and CE certifications; the manufacturer must hold low-voltage assembly qualification.
- Customization Process Steps
- Requirement communication → Quotation & proposal (including single-line/control diagrams, BOM list);
- Contract & drawing confirmation → Enclosure fabrication (drilling, bending, spraying, protection treatment);
- Component assembly & проводка (separation of strong and weak current, clear wire marking);
- Factory testing (withstand voltage, изоляция, on/off operation, protection setting, IP test);
- On-site installation, ввод в эксплуатацию, and delivery of as-built documents (drawings, certificates, test reports).
III. Core Selection & Конфигурация
- Корпус & Защита
Размеры: Common wall-mounted enclosures 400×500×200, 600×800×250; floor-standing cabinets XL21, BlokSeT, PanelSeT;
Coating: RAL7035 (telecommunication gray); outdoor models with sealing gaskets and rain hoods; 304 stainless steel for humid environments, 316 for coastal corrosive environments.
- Component Combination (Mainstream Schneider Models)
| Функция | Рекомендуемые модели |
| Main Incoming | MCCB NSX, XT Series |
| Branch Protection | MCB A9, EA9 Series, with earth leakage (Виги) |
| Dual Power Switching | WATSN Automatic Transfer Switch |
| Защита от перенапряжения | PPR, SPD Series |
| Измерение | iEM3150 Multi-Function Meter |
- Control Circuits & Дополнительные функции: Control buttons, индикаторные лампы, реле, PLC modules; remote monitoring connectable to Schneider EcoStruxure system.
- Key Quality Control & Acceptance
- Factory Testing: Power frequency withstand voltage 2500V/1min without breakdown, insulation resistance ≥1000MΩ, temperature rise test, protection operation verification;
- On-site Acceptance: Consistency check between drawings and physical product, IP sealing inspection, energized load test, protection setting review;
- Document Delivery: Electrical schematic diagrams, layout drawings, component certificates, test reports, operation manuals.
- Examples of Common Customized Solutions
General Lighting Panel: Wall-mounted IP30, 1P+N main breaker + 12-way 1P EA9 MCB + Vigi earth leakage;
Outdoor Power Panel: 304 stainless steel IP54, 3P 100A XT MCCB main breaker, 3-way 3P 32A branches, equipped with SPD and ATS;
Data Center Dual Power Panel: BlokSeT enclosure, WATSN ATS switching, UPS interlock, удаленный мониторинг.
- Quotation, Время выполнения & Avoidance Tips
- Price Factors: Component configuration, enclosure material and dimensions, functional complexity, certification requirements, order quantity;
- Время выполнения: 7–10 days for standard wall-mounted panels, 2–4 weeks for complex floor-standing cabinets;
- Avoidance Tips: Original Schneider components must be confirmed in writing; specify IP rating, test items, and warranty period (generally 1–2 years) in the contract; avoid assembly from unqualified small manufacturers to prevent safety hazards.
VII. Supplier Selection
Prioritize Schneider Authorized Panel Builders (verifiable via official website certification);
Require provision of: factory qualification certificates, samples, factory testing procedures, after-sales response mechanism.
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![NXC-65 из серии Kunlun от CHINT Electric — это 3-полюсный контактор переменного тока., номинальный ток 65 А в серии NXC. Полная модель обычно обозначается как NXC-65. [Напряжение катушки] [Частота] NXC-65 from the Kunlun Series by CHINT Electric is a 3-pole AC contactor, rated at 65A in the NXC series. The full model is typically expressed as NXC-65 [Coil Voltage] [Frequency]](https://www.bestcontactor.com/wp-content/uploads/2026/04/ScreenShot_2026-01-30_132315_324-419x560.png)



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