Chint Intermediate Relay JZX-22F/4Z(D) 24VDC

The Chint Intermediate Relay **JZX-22F/4Z(D) 24VDC** is a small electromagnetic relay specifically designed for industrial control, suitable for automated scenarios that require the switching of multiple sets of contacts. The following is a detailed description based on the search resources:

 I. Model and Core Parameters

 1. Model AnalysisChint NXR series thermal overload relays price

- **JZX-22F**: It is a series of small and medium-power electromagnetic relays of Chint, supporting both AC and DC voltages.

- **4Z**: It indicates four sets of conversion contacts (4NO + 4NC), with a total of 14 pins.

- **(D)**: The suffix "D" of some models indicates that it is equipped with a status indicator light (LED), which can intuitively display the working status of the coil.

- **24VDC**: The rated voltage of the coil is 24V DC. It is necessary to distinguish between the AC (AC) version (such as 24VAC).

 2. Key ParametersCHINT circuit breaker price

- **Contact Specifications**: 4 sets of conversion contacts (4NO + 4NC), rated current 3A, maximum switching voltage 250VAC/125VDC, maximum switching power 660VA (AC)/84W (DC).

- **Coil Characteristics*CHINT surge protector price*:

  - Powered by 24V DC, with a power consumption of approximately 0.9W, the operating time ≤ 20ms, and the release time ≤ 20ms.

  - A freewheeling diode (for DC models) is built-in to suppress the reverse electromotive force when the coil is powered off.

- **Environmental Adaptability**: The working temperature is from -25°C to +55°C, the humidity ≤ 90% (without condensation), and the protection level is IP20.

- **Installation Method**: Plug-in structure, supporting 35mm rail installation or screw fixation. The matching base model is CZY14A (14 pins).

 II. Application Scenarios and Functions

 1. Typical Applications

- **Industrial Automation**: Used for the amplification and isolation of PLC output signals, controlling loads such as solenoid valves and contactors.

- **Power System**: As a signal relay, it realizes functions such as relay protection and alarm indication.

- **Equipment Control**: Realizes the logical switching of multiple sets of circuits in machine tools and production lines.

 2. Functional Features

- **Multi-contact Design**: Four sets of independent contacts can control multiple loops simultaneously, reducing the number of relays.

- **Status Indication**: The model with a light (with the D suffix) can intuitively display the on-off status of the coil through the LED, which is convenient for troubleshooting.

- **High Reliability**: The silver alloy contact material has strong arc resistance, and the mechanical life reaches more than 10^7 times.

 III. Wiring and Installation Guide

 1. Pin Definition

- **Coil Terminals**: Pins 13 and 14 are connected to the 24VDC power supply (pay attention to the positive and negative polarities).

- **Contact Terminals**:

  - Each set of contacts includes a common terminal (COM), normally open (NO), and normally closed (NC). For example:

    - 42 (COM), 82 (NO), and 43 (NC) are the first set of contacts.

  - For the specific pin arrangement, refer to the markings on the relay housing or the instruction manual.

 2. Wiring Example

- **Basic Control Circuit**: Control the relay coil through a button, and then drive the indicator light or load with the contacts. For example:

  - One end of the button is connected to the positive pole of the 24VDC power supply, and the other end is connected to pin 14 of the coil. Pin 13 of the coil is connected to the negative pole.

  - One end of the indicator light is connected to the positive pole of the power supply, the other end is connected to the NO contact (such as pin 82), and the COM (such as pin 42) is connected to the negative pole of the load.

 3. Installation Precautions

- **Vibration Prevention**: In a vibrating environment, it is recommended to use rail clips or screws for reinforcement.

- **Wire Specification**: It is recommended to use multi-strand flexible wires with a cross-sectional area of 0.5-1.5mm² to ensure reliable connection.

- **Heat Dissipation Requirements**: Avoid dense installation in a high-temperature environment, and reserve at least 10mm of heat dissipation space.

 IV. Price and Supply

 1. Market Quotation

- **Model with Light (with D suffix)**: Approximately 15-30 yuan per piece (on domestic e-commerce platforms), and it can be lower than 10 yuan per piece for bulk purchases.

- **Model without Light**: Approximately 8-15 yuan per piece, and the specific price varies depending on the packaging (such as 20 pieces per box) and the channel.

 2. Supply Status

- **Conventional Model**: The 24VDC version is a mainstream specification and is usually available in stock.

- **Special Requirements**: For the version with a light or customized pins, it is necessary to confirm the inventory in advance, and some distributors can provide fast delivery services.

 V. Alternative Models and Compatibility

 1. Alternatives of the Same Brand

- **JZX-22F/4Z (without D suffix)**: It has the same function but lacks a status indicator light, suitable for scenarios with limited budgets.

- **JQX-13F series**: It is a large-current model (such as 5A contacts), suitable for high-load control.

 2. Cross-brand Alternatives

- **Omron G2R-1 series**: Four sets of contacts, 24VDC coil, and the pin definitions are compatible, which can be directly replaced.

- **Schneider LC1D series**: Pay attention to the differences in pin arrangements, and it is recommended to refer to the wiring diagram for confirmation.

 VI. Genuine Product Verification and Purchase Suggestions

1. **Genuine Product Identification**:

   - The packaging should have a Chint anti-counterfeiting label, and the silk printing on the product surface should be clear without burrs.

   - The serial number can be queried for authenticity through the Chint official website or customer service.

2. **Purchase Channels**:

   - **Overseas Users**: Purchase through the platform of www.transformerandswitchgear.com (such as wa: 86-13811255435).

 VII. Precautions

1. **Coil Voltage Matching**: Strictly distinguish between the AC/DC versions to avoid burning the coil due to incorrect connection.

2. **Contact Load Limitation**: For resistive loads (such as heaters), it can be close to the rated current, and for inductive loads (such as motors), it needs to be derated to less than 50%.

3. **Electromagnetic Interference Protection**: In a high-frequency environment, it is recommended to use shielded cables, and connect an RC absorption circuit in parallel at both ends of the contacts.

It is recommended that users select the model with or without a light according to specific requirements and obtain the latest manual through official channels. If complex control logic is required, it can be matched with Chint PLC (such as the NICE series) to achieve automated integration.