1546976-3

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Terminal blocks, also known as barrier blocks or flat connectors, are components used to electrically connect two or more wires. The 1546976-3 terminal block is a terminal block product from manufacturer ABB. It has a variety of features and a specific applicability and working principle.

Features

The 1546976-3 terminal block provides a range of features, including a UL 411 rated, screw-clamp connection, without a tie bar, insulation support and a choice of screw types. It is also available with and without an accessory.

The 1546976-3 terminal block permits wiring of conductors ranging from 1.25mm² to 4 mm². It also has a rated value of 160 A and a rated voltage of 1000 V AC or 1500 V DC.

Application fields

The 1546976-3 terminal block is primarily used for control and distribution applications in harsh and indoor / outdoor industrial environments. It is suitable for use in multiple applications such as motor control, switchgear and metering, given its low contact resistance, safety and ease of installation.

The 1546976-3 terminal block is also suitable for other applications such as distribution boards, protection and instrumentation, as well as hazardous areas, given the existing safety features.

Working Principle

The 1546976-3 terminal block works by providing a connection between two or more wires that is strong enough to stay intact despite environmental and electrical stress. It provides a secure clamping of the conductors via the insulation support tabs, while the two additional contact bridges ensure the conductors are securely connected without any loose contacts.

The 1546976-3 terminal block also features a positive locking system that ensures the connection will remain intact even when the screws are not perfectly tightened. This ensures a dependable and robust electrical connection.

Summary

The 1546976-3 terminal block from ABB is designed for use in harsh industrial and indoor / outdoor environments. It can be used in a variety of applications, such as motor control, switchgear, metering, distribution boards, protection and instrumentation, and hazardous areas. It provides a robust electrical connection by using a secure clamping of the conductors, a positive locking system, and two additional contact bridges.

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