A20220509

Top Termination:	Screws with Captive Plate
Material Flammability Rating:	UL94 V-0
Material - Insulation:	Thermoplastic
Operating Temperature:	-40°C ~ 105°C
Mounting Type:	Through Hole
Terminal Screw Finish:	Nickel
Terminal Screw Material:	Brass
Color:	Black
Features:	--
Barrier Type:	2 Wall (Dual)
Bottom Termination:	PC Pin
Series:	A2000
Wire Gauge:	12-22 AWG
Voltage Rating:	300V
Current Rating:	30A
Number of Rows:	1
Pitch:	0.375" (9.53mm)
Number of Wire Entries:	5
Number of Circuits:	5
Terminal Block Type:	Barrier Block
Part Status:	Active
Packaging:	Bulk

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Terminal blocks, also known as barrier blocks, are used in electrical wiring laws and electric safety standards when an electrical installation is being designed. The purpose of a terminal block is to provide an easier way to connect conductors together, usually in the form of electric cables and conductors. These terminal blocks are also used to provide insulation for the conductors and to help create a safe, neat, and organized electrical wiring system. In addition, terminal blocks provide current-carrying capability rating to correctly size the conductor and to protect against electric shock and fire.Terminal blocks are extensively used to connect electric wires from different parts of the circuit to the main power supply. The terminal block is usually mounted on the enclosing assembly and consists of two or more blocks connected to the supply voltage by metal studs, each block having a different number of contacts. Terminal blocks come in different shapes and sizes, depending on the specific application. They can range from small 2 or 3 contact units to larger 16 or 25 contact blocks. The type of terminal block used is also determined by the number and type of connections to be made.The term "barrier block" is used to describe a terminal block that has been designed to provide a means of preventing an accidental electric shock or electrical short-circuit. Barrier blocks consist of metal plates or partitions between the various pole positions that block any shock hazards from occurring. In addition, the process of inserting two wires into a single pair of terminals is prevented by the barriers that are provided.Terminal blocks and barrier blocks are also used in the manufacture of electrical control or automated systems. Generally, the types of barrier blocks employed in these systems are dual-barrier blocks and double-barrier blocks. A double-barrier block is capable of creating two secure barriers in each pole position, whereas a dual-barrier block creates one barrier in each position. Furthermore, the terminal configuration of a barrier block is such that, when a conductor is plugged into one side of the terminal block, the current is broken off safely causing the system to be free from electric shock or short-circuiting.To ensure a safe and reliable electrical system, terminal blocks and barrier blocks should be made from high grade materials and standardized components. Furthermore, the terminal connections, such as the tang-bar, should be specially designed for the specific application and should be adequately insulated to reduce the risk of electric shock and fire.Terminal blocks and barrier blocks are vital components of an electrical wiring system, and any electrical system must be adequately designed and tested in order to ensure safety and reliability. By using terminal blocks and barrier blocks, any installation can be designed to meet all applicable electrical wiring laws and regulations, and ensure the correct current-carrying capability rating for the specific installation.

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