Series:	EuroMate™ 39940
Packaging:	Bulk
Part Status:	Active
Type:	Plug, Barrier Strip
Number of Positions:	17
Positions Per Level:	17 (Mate), 8,9 (Input)
Number of Levels:	1 (Mate), 2 (Input)
Pitch:	0.200" (5.08mm)
Header Orientation:	--
Plug Wire Entry:	90°
Termination Style:	Screw with Captive Plate
Mounting Type:	Free Hanging (In-Line)
Current - IEC:	--
Current - UL:	15A
Voltage - UL:	300V
Wire Gauge or Range - AWG:	12-22 AWG
Wire Gauge or Range - mm²:	0.3-3.3mm²
Color:	Black
Operating Temperature:	-40°C ~ 90°C
Contact Mating Finish:	Tin
Features:	--
Material Flammability Rating:	--
Ingress Protection:	--
Screw Size:	M3.5
Torque - Screw:	0.79 Nm (7.0 Lb-In)
Wire Strip Length:	6.4mm
Contact Material:	Phosphor Bronze
Housing Material:	Thermoplastic
Contact Tail Length:	--
Insulation Height:	1.070" (27.18mm)

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0399400217 Terminal Blocks - Headers, Plugs and Sockets

Terminal Blocks, also known as “terminal boards”, are a way of connecting electrical devices securely and reliably to one another. They are a kind of connection system and come in a variety of different shapes and sizes. There are three main types, namely; Headers, Plugs and Sockets.

Header Blocks

Header blocks are the simplest type of Terminal Block, as they require minimal assembly. They consist of two rows of pins, which make contact when a conductor is inserted through them. The pins are pre-wired and this makes installation fast and easy. The header blocks are suitable for simple electrical installations and are highly resistant to vibration and shock.

Plug and Socket Blocks

These are a more complex type of Terminal Block, with more parts than the simpler header blocks. There is a plug which has a rectangular body with terminals for connection purposes. Then there is a socket which has metal tips and slots into the socket. When the plug is inserted into the socket, the terminals connect, forming an electric circuit. This type of Terminal Block is suitable for more complex electrical networks and is more reliable than the simpler header block.

Applications

Terminal Blocks are used in a variety of electrical installations, ranging from residential wiring to industrial operations. They are commonly used to create permanent connections between two or more electrical components. They are also used to connect power circuits in factories and electrical power plants.

Working Principle

The working principle of Terminal Blocks is based on electrical conductivity. When a conductor is inserted into the header block, the two rows of pins form an electric connection. The plug and socket blocks work in a similar way, with the plug inserting into the socket and the terminals connecting when they meet. This creates an electric circuit that allows the electrical components to communicate through it.

Advantages

Terminal Blocks offer a number of advantages over other types of connection systems. They are highly reliable, providing a secure and long-lasting connection. They are also easy to install and require minimal maintenance. Terminal Blocks are also inexpensive and offer a great deal of versatility, as they can be used for a variety of different applications.

Conclusion

Terminal blocks are a reliable and easy-to-use connection system suitable for a variety of electrical applications. They are available in three main types; headers, plugs and sockets. Each of these types has their own advantages and they can be used in residential, commercial or industrial setups. The working principle is based on the electrical conductivity of the pins in the blocks, which provide a secure connection when the conductor is inserted. As they come in a range of sizes, Terminal Blocks are a versatile and cost-effective way of connecting electrical components.

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Part Number	Manufacturer	Price	Quantity	Description