KD0230500000G vs OQ04A5010000G
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| Category | Terminal Blocks - Headers, Plugs and Sockets | Terminal Blocks - Headers, Plugs and Sockets |
| Manufacturer | Amphenol Anytek | Amphenol Anytek |
| Description | TERM BLOCK PLUG 2POS STR 3.81MM | TERM BLOCK HDR 4POS 90DEG 7.5MM |
| Package | - | - |
| Series | KD | OQ |
| Type | Plug, Female Sockets | Header, Male Pins, Shrouded (4 Side) |
| Operating Temperature | -40°C ~ 115°C | -40°C ~ 115°C |
| Mounting Type | Free Hanging (In-Line) | Through Hole |
| Termination Style | Screwless - Leg Spring, Push-In Spring | Solder |
| Color | Green | Black |
| Number of Positions | 2 | 4 |
| Pitch | 0.150" (3.81mm) | 0.295" (7.50mm) |
| Wire Gauge or Range - AWG | 16-24 AWG | - |
| Current - UL | 5.5A | 20A |
| Voltage - UL | 300V | 300V |
| Number of Levels | 1 | 1 |
| Positions Per Level | 2 | 4 |
| Contact Mating Finish | Tin | Tin |
| Plug Wire Entry | 180° | - |
| Features | - | Mating Flange |
| Header Orientation | - | 90°, Right Angle |
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1. What is a terminal block plug?
Terminal block plugs are an accessory product used to achieve electrical connections, mainly used to facilitate the connection and disconnection of wires. It is usually composed of a metal conductor encapsulated in an insulating plastic part, with holes at both ends for inserting wires, and tightening or loosening by screws. The design of the terminal plug makes it easy and quick to connect and disconnect the wires without welding or winding, which is particularly suitable for occasions that require frequent connection and disconnection.
Working principle of the terminal
The terminal connects and disconnects the wires by tightening or loosening the screws. Specifically, the wire is inserted into the hole of the terminal and then fixed with screws, so that the wire can be electrically connected through the terminal. When the connection needs to be disconnected, just loosen the screws. -
2. What role does the terminal play in the circuit?
The terminal mainly plays the following roles in the circuit:
Electrical connection: The terminal can reliably connect the wire to the circuit equipment electrically to ensure that the current is correctly transmitted. It provides a safe contact point to prevent the wire from falling off due to excessive force or external factors, thereby ensuring the normal operation of the circuit.
Convenient maintenance: The use of terminal blocks can easily repair and replace the circuit. When a device needs to be replaced or repaired, you only need to loosen the terminal block to remove the wire without changing the connection of other parts, which greatly reduces the difficulty and workload of maintenance.
Prevent contact corrosion: The terminal block is usually made of metal material with good conductivity. Through the connection of the terminal block, corrosion and oxidation at the contact point of the wire can be effectively prevented, and a good electrical connection state can be maintained.
Fixing the wire: The terminal block usually also has the function of fixing the wire. Through the loose and tight contact points, the wire is fixed to the terminal to prevent the wire from loosening or falling off due to external factors, ensuring the stability and safety of the circuit.
Improve system safety: Through the terminal block, the risk of short circuit of exposed wires can be effectively avoided, the occurrence of electrical accidents can be reduced, and the overall safety of the system can be improved.
Support multiple connection methods: The terminal block design is flexible and can support multiple types of connections, such as threaded connection, crimping, welding, etc., to adapt to different application scenarios.
The use scenarios of the terminal block include:
Distribution box and control cabinet: In the power distribution equipment and control cabinet, the terminal block is used to connect the power supply, load and various control equipment to form an electrical control circuit.
Home appliances: In home appliances such as air conditioners and refrigerators, the terminal block is used to connect the power cord to ensure the normal operation of the equipment.
Industrial equipment: In various automation equipment, sensors and actuators, the terminal block is used to transmit signals and power to ensure precise control.
Electrical system: In the power supply system of a building, the terminal block is used to connect cables to ensure the safety and stability of the power supply.
Automotive electrical system: In a car, the terminal block is used to connect batteries, control modules, lights and other electrical equipment to ensure the normal operation of the overall electrical system.
What is a terminal socket?
A terminal socket refers to the metal contact part of a socket used to connect an electrical appliance or a power plug. These terminals are connected to the power line or other electrical equipment through wires or wires, enabling electrical energy to be transmitted to or taken from the equipment in the plug.
Composition and function of terminal sockets
Terminal sockets are usually made of conductive materials such as copper to ensure good electrical conductivity. There are usually multiple terminals on the socket, including active jacks and fixed wiring screws or clips. The jack terminal is a soft metal sheet that can be inserted and fixed to the pins of the plug, while the wiring screw or clip is used to fix the wire by tightening or clamping to ensure a stable electrical connection.
Standards and specifications for terminal sockets
Different countries and regions may have different socket terminal standards and specifications. For example, China's socket terminal standards mainly include national standards GB 2099.3 and GB 1002. GB 2099.3 standard applies to low-voltage household appliance sockets, and specifies the socket's dimensions, terminal form, rated current and voltage and other parameters. GB 1002 standard applies to fixed power sockets, and specifies the socket's installation requirements and electrical connection methods.
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3. What are terminal blocks?
Terminal blocks are an accessory product used to achieve electrical connections and are widely used in industries, household circuits, electronic equipment, and industrial automation. The main function of terminal blocks is to facilitate the connection and disconnection of wires, avoid the trouble of welding or winding, and make electrical connections more flexible and convenient.
The structure of terminal blocks usually includes a section of metal sheet sealed in insulating plastic, with holes at both ends for inserting wires, and connecting or disconnecting wires by tightening or loosening screws1. This design makes terminal blocks very practical in situations where frequent connection and disconnection are required, especially in situations where a large number of wires need to be interconnected, such as terminal blocks and terminal boxes in the power industry.
There are many types of terminal blocks, and the common ones are European series, plug-in series, transformer series, building wiring series, fence series, track series, and through-the-wall series. Among them, plug-in terminal blocks have the highest sales volume in the market due to their convenient and quick connection and disconnection methods, as well as good sealing and stability.
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4. What is a motor terminal block?
A motor terminal block is a device that connects the internal cables of a motor with the external power cables, and is mainly used for motor control and operation. The motor terminal block can connect multiple power cables inside the motor together, and then connect them to the external power cable, so as to facilitate the control and operation of the motor.
Definition and function of the motor terminal block
The main function of the motor terminal block is to connect the cables inside the motor with the external power cable to realize the control and operation of the motor. Through the terminal block, the motor can be easily maintained and replaced to ensure the safety and reliability of the circuit.
Types of motor terminal blocks
Motor terminal blocks have various forms and specifications to meet different application requirements:
Fixed terminal blocks: directly installed in the equipment, cannot be removed or replaced.
Plug-in terminal blocks: can be easily inserted or unplugged, convenient for maintenance and replacement.
Screw terminal blocks: fixed by screws.
Spring terminal blocks: fixed by spring structure.
Crimp terminal blocks: fixed by crimping.
