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

chint 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.

I. Parámetros y funciones principales

1. Delay Characteristics

– Delay Range: Covers 0.01 seconds to 99 hours and 99 minutos, supporting multi-range adjustment (p.ej., 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, CA 220 V., and AC380V (50Hz), featuring strong wide-voltage compatibility.

– Capacidad de contacto: 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. Diseño Estructural

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

– Dimensiones: 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. Escenarios de aplicación típicos

1. Automatización Industrial

– Control de motores: Por ejemplo, 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 (p.ej., 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 (p.ej., terminales 4, 5) close immediately after power-on and open after the delay ends; contactos normalmente abiertos (p.ej., terminales 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. Adaptabilidad ambiental

– Temperatura de funcionamiento: -5℃~+40℃, suitable for most industrial environments.

– Nivel de protección: IP40 (dust-proof), preventing dust from affecting internal circuits.

2. Indicadores de vida útil

– Vida mecánica: 1×10⁶ operations, resistant to frequent actions.

– Vida eléctrica: 1×10⁵ operations, meeting long-term use requirements.

3. Certificación y Cumplimiento

– It has passed the CCC certification and complies with the GB/T 14048.5 estándar, garantizando seguridad y confiabilidad.

V. Price and Purchase Recommendations

1. Precio de mercado

– 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 (p.ej., CA 220 V., CC 24 V).

– 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. Sin embargo, its contact life (400,000 operaciones) 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. Precauciones

1. Coincidencia de carga

– When driving high-power loads (p.ej., motores), it is recommended to use an intermediate relay to expand the contact capacity.

2. Entorno de instalación

– 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 (p.ej., 8-pin vs. 11-pin), as the bases of some models are not universal.

VII. Resumen

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. Al comprar, it is recommended to obtain technical support and after-sales service through official channels to maximize product performance.