コンタクタ,サーキットブレーカー,ソーラーインバーター,電気メーター,太陽電池
The Chint NH42-63/4SZ belongs to the NH42 series PC-type automatic transfer switches (ATS), primarily used in 50Hz AC, 400V/415V rated voltage three-phase four-wire power supply systems. It supports automatic or manual switching between normal and standby power sources, suitable for scenarios requiring high power supply reliability, such as hospitals and data centers. Below are the key parameters and usage guidelines:
- コアパラメータと関数
- Rated Current and Poles
– の “63” in the model indicates a rated current of 63A, while “4” signifies a four-pole design, capable of switching three-phase live wires and the neutral wire (N pole) simultaneously to ensure reliable neutral wire connection.
– It supports manual operation and can also achieve automatic switching via an external controller. Note that the load power supply will be briefly interrupted during the switching process.
- Breaking Capacity and Trip Characteristics
– The rated making and breaking capacity of this series of switches is 10 定格電流の倍 (10つまり). For the 63A model, the breaking capacity can reach 630A. しかし, it should be noted that the actual short-circuit breaking capacity (such as Icu or Ics) shall be subject to the official technical manual. PC-type switches generally focus more on isolation functions rather than short-circuit protection.
– The trip characteristics are not explicitly stated in the search results. It is speculated that a C-type curve (instantaneous tripping at 5-10 定格電流の倍) may be adopted, suitable for conventional power distribution circuits.
- 認証と規格
– 中国CCCによる認証 (証明書番号: 2020980307002091), IECに準拠 60947-6-1 および GB/T 14048.11 標準.
注記: UL certification is not mentioned. For use in the United States, it is recommended to contact local distributors to confirm whether alternative models compliant with North American standards (such as the NH40 series) or certified versions are available.
- アプリケーションのシナリオとインストール
- 代表的な用途
– Two-power-source switching: Suitable for scenarios such as mains power and standby generators, or dual mains power, to ensure continuous power supply for critical loads (例えば, emergency lighting, medical equipment).
– Isolation function: Can be used as an isolating switch to meet safety isolation requirements during maintenance.
- インストール要件
– 周囲温度: -5°C ～ +40°C, 高度を超えないこと 2000 メートル. Avoid installation in humid, corrosive environments or flammable and explosive locations.
– 配線仕様: Installation must be performed by professional electricians to ensure reliable connection of the neutral wire (N pole) and that the circuit meets the rated current requirements.
Ⅲ. Purchase and Alternative Solutions
- Market Information
– For users in the United States, cross-border suppliers can be inquired via WhatsApp: +86-13811255435, but attention should be paid to transportation costs and certification compliance.
- Alternative Model Recommendations
– For UL certification requirements, consider the Chint NH40 series or Schneider WATSN series (例えば, WATSN-100/63/4A).
– For low-current scenarios, models such as NH42B-32/4SZ can serve as cost-effective alternatives.
- 予防
- Functional Limitations
– Cannot directly start motors, and power supply will be interrupted during switching, making it unsuitable for power-sensitive equipment (例えば, precision instruments).
- メンテナンスのご提案
– Regularly inspect the contact status to ensure no oxidation or ablation; the operating handle should be flexible to avoid jamming.
It is recommended to obtain detailed technical manuals through Chint’s official website (ワッツアップ: +86-13811255435) or local authorized distributors to confirm key parameters such as breaking capacity and trip curves. For the U.S. 市場, contact Chint’s international business departments (例えば, manufacturing bases in Vietnam or Singapore) to inquire about compliant products.
