1956137

Series:	COMBICON CCVA
Packaging:	Bulk
Part Status:	Active
Type:	Header, Male Pins, Shrouded (4 Side)
Number of Positions:	7
Positions Per Level:	7
Number of Levels:	1
Pitch:	0.200" (5.08mm)
Header Orientation:	Vertical
Plug Wire Entry:	--
Termination Style:	Solder
Mounting Type:	Through Hole
Current - IEC:	12A per position
Voltage - IEC:	400V
Current - UL:	10A
Voltage - UL:	300V
Wire Gauge or Range - AWG:	--
Wire Gauge or Range - mm²:	--
Color:	Black
Operating Temperature:	--
Contact Mating Finish:	Tin
Features:	Locking Ramp
Material Flammability Rating:	UL94 V-0
Ingress Protection:	--
Screw Size:	--
Torque - Screw:	--
Wire Strip Length:	--
Contact Material:	--
Housing Material:	Liquid Crystal Polymer (LCP)
Contact Tail Length:	0.102" (2.60mm)
Insulation Height:	0.472" (12.00mm)

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Terminal Blocks - Headers, Plugs and Sockets
Terminal blocks have become a mainstay in the electrical industry due to their robustness and versatility. This article focuses on 1956137 (or 561-3) terminal blocks and provides an overview of the uses, principles and advantages of these components. What are 1956137 Terminal Blocks?
1956137 (or 561-3) terminal blocks are one form of terminal block that is used for electrical device wiring and for connecting control, communication, and/or power cables. The 1956137 terminal block contains two male terminals (pins) on the outside of the terminal block which are connected by a clamp. The clamp provides a terminal block with a quick and easy means to securely connect a wire without the need for tools. Applications & Uses
Terminal blocks are used in a variety of electrical system applications including, but not limited to, control systems, industrial automation systems, datacom/networking applications, power distribution, home and commercial wiring and appliances, automotive electronics, and aircraft and military equipment. The 1956137 type of terminal block is particularly useful in power distribution and industrial automation systems where the terminal block must be able to handle higher current loads. The design of the 1956137 terminal block is able to produce a secure connection with a minimal amount of contact resistance, meaning more power can be applied to the connection without issue. In addition, the 1956137 terminal block has a patented feature that allows it to automatically engage and release the wire connection using only a small amount of force. This makes it ideal for applications where frequent changes are needed. Working Principle of a 1956137 Terminal Block
The working principle of the 1956137 terminal block is based on the combination of two components: a pin and a sleeve. The pins, which are made of a strong metal, are inserted into the copper sleeve placed between the two male terminals. The pins provide the electrical connection between the two terminals and are designed with a small gap at the top that allows the pin to flex slightly when the terminal is connected. The sleeve, which is also made of a strong metal, is designed to fit snugly around the pins and is used to ensure that the pins remain securely connected to the terminal. This sleeve is also designed to provide a small amount of compression to help support the wire connection. Advantages of 1956137 Terminal Blocks
The 1956137 terminal block has numerous advantages over traditional terminal blocks. These advantages include the following:

• Increased Current-Handling: The design of the 1956137 terminal block is able to produce a secure connection at higher levels of current, allowing for more power to be applied to the connection without issue.
• Patented Design: The patented design of the 1956137 terminal block allows for easy and fast connection and disconnection without the need for tools.
• Durable: The strong metal pins and sleeve are designed to provide a durable connection that can withstand temperature extremes and is not easily affected by other environmental factors.

Conclusion
The 1956137 (or 561-3) terminal block is a versatile and durable component that is well-suited for power distribution andindustrial automation applications. The terminal block has a patented design that allows for quick and easy connection and disconnection and is capable of handling higher levels of current without issue. This makes it a preferred choice for many applications, where durability and reliability are paramount.

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