Part Number: 3TF47

Function: Magnetic Contactor

Manufacturer: Siemens

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Description

3TF Series AC Contactors are latest products of Siemens AG in 1990’s. The series products are suitable for frequency of 50/60Hz, rated insulation voltage up to 690 ~ 1000V, rated operational current up to 9A ~ 400A at rated operational voltage up to 380V under the utilization category AC – 3. 3TF Series AC Contactors are mainly used for making/breaking electric circuits at a long distance and for frequent starting/
stopping and reversing control of AC motors.They comply with IEC947, VDE0660, GB14048.

Contactor Selection Guide

Features :

1. Sub-Category : Contactors
2. Type : 3TF
3. Phase : 3
4. Poles : 3
5. Voltage : 600
6. Amperage : 63
7. Coil Voltage Min : 110
8. Coil Voltage Max : 120

 

 

3TF47 Datasheet

 

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Part Number: 3TF50

Function : Contactors for Hoisting Duty

Manufacturer: Siemens ( www.siemens.com )

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Application

AC-2 operation is the typical duty for starting and switching off fully-loaded slipring motors in the starting phase. The rating of the contactor, to switch the motors, is selected primarily on the basis of rated make & break capacity and desired electrical endurance.

 

Selection and ordering data

 

Benefits and features

1. Long life

(1) “Hoisting Duty “Contactors are provided with new design of contacts (AgSnO2 instead of AgCdO) resulting in high electrical and mechanical life.

(2) They are electrically superior in taking care of excessive stresses coming on contactors during their operations in crane applications.

2. Reliability

(1) The “Hoisting Duty” Contactors have vacuum impregnated coils which are suitable for high frequency switching and high vibrations. This helps in reducing coil failures.

(2) Side mounted auxiliary contact blocks are screw mounted and not snap fitted to withstand vibrations and high frequency operation.

 

Technical Information

Reference PDF : 3TF50.PDF

3TF50 Datasheet

 

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