CHINT 14-pin intermediate relay

CHINT 14-pin intermediate relay is a multi-contact signal conversion device suitable for industrial control, smart home and other scenarios.

 I. Core Models and Technical Parameters

1. **Model Description*Chint NXR series thermal overload relays price*  

   The main models include **JZX-22F(D)/4Z** and **NXJ/4Z(D)**, where "4Z" represents 4 groups of contacts (4 normally open and 4 normally closed). For example:

   - **JZX-22F(D)/4Z**: Supports various coil voltages such as AC12V, AC220V, DC24V, and is equipped with an LED action indicator.

   - **NXJ/4Z(D)**: Miniaturized design, compatible with AC/DC voltages, with a contact capacity of up to 10A.

2. **Key Parameters*CHINT circuit breaker price*  

   - **Contact capacity**: Maximum 10A, which can drive high-power loads such as solenoid valves and contactors.

   - **Response time**: Less than 10ms, suitable for fast switching scenarios (such as automated production lines).

   - **Coil power consumption**: Approximately 1-2W, low power consumption design.

   - **Pin layout*CHINT contactor price*:  

     - **Pins 13/14**: Coil power supply (DC needs to distinguish positive and negative poles, AC does not need to be distinguished).  

     - **Pins 1-12**: 4 groups of contacts, each group includes a common terminal (pins 9-12), normally closed (pins 1-4) and normally open (pins 5-8).

 II. Application Scenarios

1. **Industrial Automation*CHINT surge protector price*  

   It is used for PLC output expansion and signal isolation of motor control circuits to prevent weak current systems from being interfered by strong current. For example, relays are used in production lines to realize linkage control of multiple devices.

2. **Smart Home**  

   Cooperate with smart switches or sensors to realize remote control of lights and curtains. For example, connect a DC24V relay to a Zigbee module to realize the conversion from wireless signals to strong current.

3. **Security and Fire Protection**  

   Act as a signal relay in the fire alarm system, converting weak current alarm signals into AC220V contact output to trigger alarms or cut off non-fire-fighting power supplies.

4. **Automotive Electronics**  

   Used for in-vehicle audio and car light control, supporting wide voltage input (such as DC12V/24V) to adapt to vehicle power supply fluctuations.

 III. Purchase and Selection Suggestions

1. **Domestic Purchase Channels**  

   - **E-commerce platforms**: Available on Tmall, JD.com, and Taobao. The JZX-22F(D)/4Z (DC24V) with base is about 15.3 yuan, and the base is sold separately for about 3.8 yuan.

   - **Matters needing attention**: Choose the "with base" package to simplify installation and avoid additional purchase of compatible bases.

2. **International Purchase**  

   Users in the United States can confirm the supply through Whatsapp: 0086-13811255435.

3. **Selection Points**  

   - **Coil voltage**: Strictly match the control signal voltage (for example, if the PLC output is DC24V, select a DC24V coil).

   - **Contact type**: Choose the combination of normally open/normally closed according to the load requirements. For example, normally closed contacts should be selected for scenarios that need to maintain power off.

   - **Certification requirements**: Export equipment should choose models that meet UL and CE certifications (such as some models of JZX-22F(D)).

IV. Wiring and Installation Guide

1. **Wiring Steps**  

   - **Coil wiring**: Pin 13 is connected to the power negative pole (DC) or neutral line (AC), and pin 14 is connected to the positive pole (DC) or live line (AC).

   - **Contact wiring**:  

     - The common terminal (such as pin 9) is connected to the load power supply, the normally open contact (such as pin 5) is connected to the load equipment, and the normally closed contact (such as pin 1) is connected to the backup circuit.

   - **Example circuit**: In the self-locking control, connect the normally open contact of the relay in parallel with the start button to realize continuous power supply after releasing the button.

2. **Installation Notes**  

   - Use a rail-type base (such as CZY14A) for fixing to ensure firm contact connection.

   - Avoid coil voltage overload. For DC type, attention should be paid to the reverse connection of positive and negative poles, which may cause the indicator light to not work or be damaged.

V. FAQ

1. **How to distinguish the coil voltage?**  

   The relay shell or base label will be marked with parameters such as "AC220V" and "DC24V". At the same time, pay attention to the "+/-" mark next to the coil pins (for DC type).

2. **Can it replace relays of other brands?**  

   If the pin layout and parameters are the same (such as Omron MY4N-GS), it can be directly replaced, but the base compatibility needs to be confirmed.

3. **How to deal with contact oxidation?**  

   Clean the contacts with anhydrous alcohol regularly, and avoid frequent on-off of large currents to prolong the service life.

With high reliability and flexible configuration, CHINT 14-pin intermediate relay has become the mainstream choice in industrial and civil fields. It is recommended to choose a complete set with a base when purchasing, and strictly follow the wiring diagram for operation to ensure safety.