3TF46 PDF – 3 Pole, AC Contactor – Siemens

Part Number: 3TF46

Function: AC Contactor ( 3 poles, 3 Phase, 45A )

Package: Module type

Manufacturer: Siemens

Preview Images:3TF46 contactor datasheet


3TF46 refers to a specific model of contactor manufactured by Siemens. The 3TF series of contactors are robust and reliable devices used for controlling electric motors and other high-power loads.

An AC contactor is an electrical switching device designed to control the flow of alternating current (AC) power in an electrical circuit. It is commonly used in industrial and commercial applications for controlling motors, lighting systems, heating elements, and other high-power AC loads.

1. Construction: AC contactors consist of a set of contacts, an electromagnetic coil, and a mechanical mechanism for opening and closing the contacts. The contacts are typically made of high-conductivity materials like silver or copper to handle high current levels.

2. Operation: When the coil of an AC contactor is energized, it generates a magnetic field that pulls the contacts together, closing the circuit. This allows the AC power to flow through the contactor and supply the connected load. When the coil is de-energized, a spring or mechanical mechanism opens the contacts, interrupting the power flow.

AC contactors play a vital role in controlling high-power AC circuits in various industrial and commercial applications. They provide reliable and durable switching capabilities for managing motor loads, lighting systems, and other electrical equipment


3TF46 pinout pdf

Siemens 3TF46 contactors are widely used in industrial applications, motor control centers, switchgear, and other electrical control systems. They are known for their high performance, reliability, and long service life.

3TF46 PDF Datasheet