CFTDW-18

Series:	CFT
Packaging:	Bulk
Part Status:	Active
Terminal Block Type:	Barrier Block
Number of Circuits:	18
Number of Wire Entries:	18
Pitch:	0.375" (9.53mm)
Number of Rows:	1
Current Rating:	20A
Voltage Rating:	300V
Wire Gauge:	12-22 AWG
Top Termination:	Screws with Captive Plate
Bottom Termination:	PC Pin, Insulated
Barrier Type:	2 Wall (Dual)
Features:	Flange
Color:	Black
Terminal Screw Material:	--
Terminal Screw Finish:	--
Mounting Type:	Chassis, Panel
Operating Temperature:	140°C
Material - Insulation:	Polyester Thermoplastic
Material Flammability Rating:	UL94 V-0

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Terminal Blocks – Barrier Blocks

Barrier blocks, also referred to as terminal blocks, are blocks of plastic or metal, with protruding screws or posts that enable you to make electrical connections. A CFTDW-18 barrier block is a type specifically designed and manufactured for use in DIN rail mount applications.

Physical Characteristics

The CFTDW-18 barrier block features a width of 18 millimeters and a snap-in design that requires only a quarter of a turn to mount it onto the DIN rail. The block has a white marking strip, which can be marked with a pencil or a pen for custom labeling. The units feature a plastic housing and are designed to meet the requirements of VDE 0660 and EN500-22 voltage insulation standards.

Function

Barrier blocks assist in providing an electrical connection between components in a system or circuit. The block is designed to ensure that wires on opposite sides of the terminal block do not make direct contact. This is accomplished by its design, which places the posts on the top surface and the terminals on the bottom surface. A barrier is used to separate the two, preventing any short circuit from occurring.

Applications

The CFTDW-18 barrier block is typically used for low voltage applications up to 300 volts, and is best suited for circuits with low power requirements. It is commonly found in industrial and automation systems, specifically for terminal wiring of equipment located in control panels. The terminal block is also used for the distribution of high and low voltages in automation and signalling systems, as well as providing multiple circuit connections for diode bridges.

Working Principle

The basic concept of a barrier block is that it allows various wires or circuits to connect, but it is designed to keep them isolated from one another. This is accomplished by its dual-level design, which places the pins and sockets on different levels. When the terminals are set in place, a barrier is formed with a plastic plate that keeps the posts from touching each other.

Installation

CFTDW-18 barrier blocks are easy to install and require only a minimal amount of effort. The first step is to locate and mount the terminal block on the DIN rail. After the block is in place, the wires can be cut to size and fitted onto the terminals, while taking great care to properly configure the wire connections. These connections must be tight and secure, as any imperfections can cause an electrical fault to occur.

Conclusion

The CFTDW-18 barrier block is an important tool for any industrial or automation system, as it enables components in the circuit to communicate effectively with each other without causing a short or malfunction. The block is constructed of a sturdy material and is designed to provide effective insulation up to 300 volts. Installation procedures are simple and straightforward, making them ideal for a variety of wiring applications.

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