Chint JSS48A-2Z 8-pin power-on delay time relay

Cinto 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.

IO. Parametri e funzioni principali

1. Delay Characteristics

– Delay Range: Covers 0.01 seconds to 99 hours and 99 minutes, supporting multi-range adjustment (per esempio., 0.01s~99.99s, 1min~99h99min). The delay can be quickly set via the panel DIP switches or knobs.

– Accuracy: ≤1%, ensuring the reliability of timing control.

2. Electrical Specifications

– Power Supply Voltage: Supports AC/DC 24V~48V, AC/DC 100V~240V, AC220V, and AC380V (50Hz), featuring strong wide-voltage compatibility.

– Contact Capacity: AC-15 240V/0.75A (inductive load), DC-13 220V/0.27A, with a rated heating current of 5A. It can directly drive small contactors or solenoid valves.

3. Structural Design

– Metodo di installazione: Supports panel mounting and DIN rail mounting (requires CZS08C or CZF11A-E base). It is compatible with standard 35mm DIN rails, saving space.

– Dimensioni: 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. Scenari applicativi tipici

1. Industrial Automation

– Controllo motorio: Per esempio, 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

– Lighting System: Enables timed switching or scene switching (per esempio., automatic dimming at night).

– HVAC Control: 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. Wiring Example

– Power Input: The AC220V model is directly connected to L/N; the DC24V model requires distinction between positive and negative poles.

– Contact Output: Normally closed contacts (per esempio., terminals 4, 5) close immediately after power-on and open after the delay ends; normally open contacts (per esempio., terminals 3, 6) close with a delay.

– Reset Function: 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. Performance and Reliability

1. Adattabilità ambientale

– Operating Temperature: -5℃~+40℃, suitable for most industrial environments.

– Protection Level: IP40 (dust-proof), preventing dust from affecting internal circuits.

2. Service Life Indicators

– Vita meccanica: 1×10⁶ operations, resistant to frequent actions.

– Vita elettrica: 1×10⁵ operations, meeting long-term use requirements.

3. Certificazione e Conformità

– It has passed the CCC certification and complies with the GB/T 14048.5 standard, ensuring safety and reliability.

V. Price and Purchase Recommendations

1. Prezzo di mercato

– 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 (per esempio., AC220V, DC24V).

– International Channels: The quoted price from overseas distributors is approximately 52.5~60 USD, and transportation costs need to be considered.

2. Comparison of Alternative Models

– Omron H3Y-2: Priced at approximately 65 RMB, with a delay range of 0.1s~60s, suitable for short-time control. However, its contact life (400,000 operazioni) 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. Precauzioni

1. Carica corrispondenza

– When driving high-power loads (per esempio., motori), it is recommended to use an intermediate relay to expand the contact capacity.

2. Installation Environment

– Avoid use in environments with strong magnetic fields or high humidity to prevent interference or corrosion.

3. Alternative Compatibility

– When replacing, it is necessary to confirm the pin definition (per esempio., 8-pin vs. 11-pin), as the bases of some models are not universal.

VII. Riepilogo

With its wide voltage range, high-precision delay, 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. When purchasing, it is recommended to obtain technical support and after-sales service through official channels to maximize product performance.