High voltage screw fixed terminal block connector 2 ~ 24 ways , pitch 7.62mm

Description:

Barrier terminal block with easy connection, These connectors are available in all types of wires with 6.35-60mm pitch, with cover and without cover.

A screw terminal is a type pf electrical connector where a wire is held by the tightening of a screw. Screw terminals, as individual connectors to a board, as a barrier strip with setscrews at top, and as a barrier strip with attached spade and loop lugs at bottom.

Why you need a terminal block?

• Screw terminals are low in cost when compared to other types of connectors

• It can be readily designed into products for circuits carrying currents of from a fraction of an ampere up to several hundred amperes at low to moderate frequencies.

• The terminals easily can be re-used in the field, allowing for the replacement of wires or equipment, generally with standard hand tools.

• Screw terminals usually avoid the requirement for a specialized mating connector to be applied to the ends of wires.

Applications:

Screw terminals are used extensively in building wiring for the distribution of electricity - connecting electrical outlets, luminaires and switches to the mains, and for directly connecting major appliances such as clothes dryers and ovens drawing in excess of 15 amperes.

Screw terminals are commonly used to connect a chassis ground, such as on a record player or surge protector. Most public address systems in buildings also use them for speakers, and sometimes for other outputs and inputs. Alarm systems and building sensor and control systems have traditionally used large numbers of screw terminations.

Grounding screws are often color-coded green and, when used on consumer electronics, often have a washer with gripping "teeth".

Printed circuit board (PCB) terminal blocks are specially designed with a copper alloy pin of suitable size and length and can be inserted in printed circuit boards to be soldered to allow electrical signals and current to flow to and from PCBs and electrical equipment. Some designs provide features that allow the flow of molten solder to endure a better connection between the circuit traces of the board and the electrical equipment which is meant to be controlled or fed appropriate power.

The wire may be wrapped directly under the head of a screw, may be held by a metal plate forced against the wire by a screw, or may be held by what is, in effect, a set screw in the side of a metal tube. The wire may be directly stripped of insulation and inserted under the head of a screw or into the terminal. Otherwise, it may be either inserted first into a ferrule, which is then inserted into the terminal, or else attached to a connecting lug. which is then fixed under the screw head.

Depending on the design, a flat-blade screwdriver, a cross-blade screwdriver, hex key, Torx key, or other tool may be required to properly tighten the connection for reliable operation.

Electrial:

Dimension:(mm)