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D-Sub Female Terminal Block 16-22 AWG Support Most Of PLC Output
Interface
Terminal block
The commonly used classification methods for terminal blocks are:
1 According to shape:
Circular electrical terminal block, rectangular electrical terminal
block. Due to the characteristics of its own structure, the round
terminal block has the largest amount of military equipment
(aviation and aerospace). Because of its simple structure, the
rectangular terminal block is more of a printed circuit board for
electronic devices.
2 According to the structure:
According to the connection mode: threaded connection, bayonet
(fast) connection, card lock connection, push-pull connection,
in-line connection, etc.;
According to the contact body termination form: crimping, welding,
winding; screw (cap) fixed;
According to environmental protection points: environmental
resistance electrical terminal block and ordinary electrical
terminal block
3) According to the purpose: RF electric terminal block sealed
electric terminal block (glass seal welding) High temperature
electric terminal block automatic fall off separation electric
terminal block filter electric terminal block composite material
electric terminal station airport power supply terminal block
printed wiring board electric terminal Taiwan
Terminal Block Structure: The terminal block consists of a fixed-end terminal block
(hereinafter referred to as a socket) and a free-end terminal block
(hereinafter referred to as a plug). The socket is fixed on the
electrical components by means of its square (circular) disk
(individual welding is also used), the plug is generally connected
to the cable, and the plug and the socket are connected by
connecting the nut.
The terminal block consists of three basic units: housing,
insulator, and contact body. The
Shell - The terminal block shell refers to the shell of the plug
and socket, the connecting nut, and the tail attachment. The role
of the enclosure is to protect the internal parts of the terminal
block, such as the insulator and the contact body (the generic name
of the pin jack) from being damaged. The above positioning keyway
ensures the positioning of the plug and socket. The connection nut
is used for the connection and separation of the plug connector.
The tail attachment is used to protect the end of the wire and the
contact body from damage and to fix the cable. The shell also has a
certain electromagnetic shielding effect. Generally used aluminum
processing (machine, cold extrusion, die-casting). Steel shells are
mostly used for glass sealing and high temperature resistant
terminal blocks.
Insulator - consists of a pin insulator and a socket insulator.
Interface sealing body, sealing body and other components. To keep
the pin insertion holes in the set position, and to electrically
insulate each contact body and between each contact body and the
housing. Sealing measures are taken through the insulator and the
interface sealer to improve the environmental resistance of the
electrical terminal block.
In order to adapt to the product's high temperature, low
temperature, flame retardant, to ensure that the part geometry is
stable and reliable. Most insulators use thermosetting plastic
molding. The interface sealing body and the sealing body are molded
by silicone rubber molding and the like.
Contact body - The pin jack is the general name of the contact
body, and it is divided into welding type, pressure contact type
and wrap type and used for circuit connection.
The pin jack is a key component of the terminal block, which
directly affects the reliability of the terminal block. The pin
jacks are mostly made of elastic copper alloy materials with good
electrical conductivity. The surface is plated with silver to
achieve low contact resistance and corrosion protection. The
♦ Typical Applications
• Micro-controller • PLC control • Servo System
• Electro-magnetic valve • DC Motors • CNC machine
• Home intelligent control
♦ Technical data
Model | JR-25TDC |
Connector type | D-Sub |
I/O poles | 25 |
Wiring method | Euro terminal (slotted screws) |
Rated current | 1A |
Rated voltage | DC24V |
Insuration resistance | 100MΩ min. (at 500VDC) |
Dielectric strength | 500VAC 1min |
Ambient operating temperature | -20℃~+55℃ |
Applicable wires | AWG 22-16(0.3~1.25mm2),6~7mm |
Suitable Uses | PC I/O and axis controller conversion |
Dimensions(LxWxH) | 90×49×44mm |
Mounting | DIN rail |