A-TB381-OP21

Wire Gauge or Range - AWG:	--
Insulation Height:	0.079" (2.00mm)
Contact Tail Length:	0.138" (3.50mm)
Housing Material:	Thermoplastic
Contact Material:	Brass
Wire Strip Length:	--
Torque - Screw:	--
Screw Size:	--
Ingress Protection:	--
Material Flammability Rating:	UL94 V-0
Features:	--
Contact Mating Finish:	--
Operating Temperature:	-40°C ~ 115°C
Color:	--
Wire Gauge or Range - mm²:	--
Series:	--
Voltage - UL:	300V
Current - UL:	10A
Current - IEC:	--
Mounting Type:	Through Hole
Termination Style:	Solder
Plug Wire Entry:	--
Header Orientation:	Vertical
Pitch:	0.150" (3.81mm)
Number of Levels:	1
Positions Per Level:	21
Number of Positions:	21
Type:	Header, Male Pins, Unshrouded
Part Status:	Active
Packaging:	Bulk

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terminal blocks are devices used in electronic equipment to connect circuit components. The A-TB381-OP21 terminal blocks allow for quick and easy connection of signal and power circuits. These terminal blocks are designed for reliable performance under tough environmental conditions, offering an optimal level of safety and reliability.The A-TB381-OP21 offers a wide range of applications, including industrial control systems, process control systems, medical equipment and aerospace applications. They come in a range of sizes, from a smallest 8 pin configuration, up to a larger 72 pin configuration. The A-TB381-OP21 is designed to meet a variety of application needs, from bus level stub solutions to lower current block and rail applications.The A-TB381-OP21 is a modular type terminal block, which allows for multiple components to be connected together by plugging them into a housing. This helps in improving the layout and efficiency of the terminal block. The terminal blocks come prewired and have screw terminals for easy connection of wires and components. They also have provisions for length adjustment to facilitate the fast and efficient assembly of modules.The A-TB381-OP21 has a universal screw terminal connection system and comes with a large variety of wire and screw mounting options, including flat screw and push-in options. It also has a wide range of accessories for multiple applications. The A-TB381-OP21 is UL, CSA, and CE certified, making it the safe and reliable choice for any industrial application.The A-TB381-OP21 working principle is based on the use of a hook and pin configuration. The male pins of the terminal block are inserted into the female hooks of a mating connector. This configuration ensures that a mechanically and electrically secure connection is made between the two components. The pins and hooks are made with high conductivity materials to ensure a low electrical resistance and high conductivity.This feature ensures that the connection between the two components is perfectly insulated from the outside environment. The A-TB381-OP21 also uses a Positive Lock System, which consists of two spring-loaded levers that are pressed together to create an effective locking connection. This feature ensures that the connection is securely held and does not lose its integrity over time.In summary, the A-TB381-OP21 terminal block is an excellent choice for safely and efficiently connecting signal and power circuits in a variety of applications. It offers quick and easy connection, a variety of mounting options, and universal screw terminal connection system. With a wide range of sizes and accessories available, and an UL, CSA, and CE certified, it is the ideal choice for any industrial application.

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