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
チント JSS48A-2Z is an 8-pin power-on delay time relay equipped with two sets of changeover contacts (2Z). It is suitable for timing control in scenarios such as industrial automation and smart homes.
私. コアパラメータと関数
1. Delay Characteristics
– 遅延範囲: Covers 0.01 秒まで 99 何時間も 99 分, supporting multi-range adjustment (例えば, 0.01s~99.99s, 1min~99h99min). The delay can be quickly set via the panel DIP switches or knobs.
– 正確さ: 1%以下, ensuring the reliability of timing control.
2. 電気仕様
– 電源電圧: Supports AC/DC 24V~48V, AC/DC 100V~240V, AC220V, and AC380V (50Hz), featuring strong wide-voltage compatibility.
– 接点容量: AC-15 240V/0.75A (誘導負荷), DC-13 220V/0.27A, with a rated heating current of 5A. It can directly drive small contactors or solenoid valves.
3. 構造設計
– 設置方法: Supports panel mounting and DIN rail mounting (requires CZS08C or CZF11A-E base). It is compatible with standard 35mm DIN rails, saving space.
– 寸法: Panel size is 48×48mm, cutout size is 45×45mm, and length is 104mm. It is equipped with a transparent protective cover to prevent accidental contact.
Ⅱ. 典型的なアプリケーションシナリオ
1. 産業オートメーション
– モーター制御: 例えば, delay control of conveyor belt start and stop to avoid current surges caused by simultaneous startup of multiple motors.
– Equipment Protection: Cooperates with sensors to realize delayed shutdown after fault alarm, reserving maintenance time.
2. Smart Home and Building
– 照明システム: Enables timed switching or scene switching (例えば, automatic dimming at night).
– HVAC 制御: Timed pre-heating/cooling of air conditioners and water heaters to improve energy efficiency.
3. Experiment and Testing
– Periodic start-stop control of laboratory equipment, or simulation of long-term operation tests.
Ⅲ. Usage and Wiring
1. 配線例
– Power Input: The AC220V model is directly connected to L/N; the DC24V model requires distinction between positive and negative poles.
– Contact Output: 常閉接点 (例えば, 端子 4, 5) close immediately after power-on and open after the delay ends; 常開接点 (例えば, 端子 3, 6) close with a delay.
– リセット機能: Forced stop of timing and reset can be achieved by short-circuiting the reset terminal with an external signal.
2. Operation Interface
– Time Setting: Select the time unit (S for second/M for minute/H for hour) and specific value via panel DIP switches or knobs. The nixie tube or indicator light displays the countdown in real time.
– Anti-counterfeiting Verification: The barcode on the side supports mobile phone scanning to verify authenticity, ensuring genuine products.
Ⅳ. パフォーマンスと信頼性
1. 環境適応力
– 動作温度: -5℃～+40℃, ほとんどの産業環境に適しています.
– 保護レベル: IP40 (防塵), preventing dust from affecting internal circuits.
2. 寿命指標
– 機械的寿命: 1×10⁶演算, resistant to frequent actions.
– 電気的寿命: 1×10⁵ オペレーション, meeting long-term use requirements.
3. 認証とコンプライアンス
– CCC認証に合格し、GB/Tに準拠しています。 14048.5 標準, 安全性と信頼性の確保.
V. 価格と購入の推奨事項
1. 市場価格
– Domestic Channels: The quoted price on platforms such as Taobao and Alibaba is approximately 58~65 RMB (the price may be lower for bulk purchases). Please pay attention to distinguishing voltage specifications (例えば, AC220V, DC24V).
– International Channels: The quoted price from overseas distributors is approximately 52.5~60 USD, and transportation costs need to be considered.
2. 代替機種の比較
– Omron H3Y-2: Priced at approximately 65 人民元, with a delay range of 0.1s~60s, suitable for short-time control. しかし, its contact life (400,000 オペレーション) is lower than that of JSS48A-2Z.
– Chint NTE8 Series: A new product in 2025, supporting more precise short delays of 0.1s~5s, but with relatively single functions. It is recommended to prioritize the versatility of JSS48A-2Z.
VI. 予防
1. ロードマッチング
– When driving high-power loads (例えば, モーター), it is recommended to use an intermediate relay to expand the contact capacity.
2. 設置環境
– Avoid use in environments with strong magnetic fields or high humidity to prevent interference or corrosion.
3. Alternative Compatibility
– 交換時, it is necessary to confirm the pin definition (例えば, 8-pin vs. 11-ピン), as the bases of some models are not universal.
Ⅶ. まとめ
With its wide voltage range, 高精度の遅延, and flexible installation methods, Chint JSS48A-2Z has become a cost-effective choice for industrial and civil timing control. Whether in automated production lines or smart homes, it can provide a stable and reliable time management solution. 購入時, it is recommended to obtain technical support and after-sales service through official channels to maximize product performance.
