3TK2804 PDF Datasheet – Contactor Safety Combination

This post explains for the Contactor.

The Part Number is 3TK2804.

The function of this semiconductor is Contactor Safety Combination.

Manufacturers : Siemens

Preview images :

pinout

Description :

THIS IS CONTACTOR COMBINATION FOR SAFETY CIRCUITS ENABLING AND SIGNALLING CIRCUIT. ( 4NO, 1NO+1NC DC OPERATION DC 24V )

Functions and connections :

The internal control circuit of the contactor safety combination is designed according to DIN EN 60204, Part 1 (VDE 0113, Part 1), para. 9.4.2.2, so that in the case of a fault in one of the contactor relays the function of the safety circuit is maintained. The supply voltage must meet the requirements of the DIN EN 60204 (VDE 0113, Part 1) (the terminals “L-/N; A2“ must be connected to that side of the control current circuit which is linked to the protective
conductor system).

Applications :

The contactor safety combinations can be used in EMERGENCY-OFF circuits
and for monitoring protective devices (e.g. protective screens).

[…]

Other data sheets within the file : 3TK2804-0BB4

3TK2804 PDF Datasheet

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3TF50 Datasheet – Power Contactor – Siemens ( PDF )

Part Number : 3TF50

Function : Power Contactor

Manufactures : Siemens

Image

3TF50 Contactor Siemens

Description :

This is Three Phase Magnetic contactor.

Applications

3TF50 power contactors are suitable for switching and controlling squirrel cage and slip-ring motors as well as other AC loads, such as solenoids, capacitors, lighting loads, heating loads and transformer loads

Selection and ordering data

3TF50 datasheet

 

High performance

1. No duration upto 55°C
Contactors are suitable for operation in service temperature up to 55°C without derating. This avoids selection of higher rated contactor, thereby reducing cost.

2. Long Life
Superior design of current carrying parts, contact system and the magnet system increases the reliability results into higher electrical and mechanical endurance.

3. High short-time rating
Contactors have a high short-time rating, which makes them suitable for applications having high starting currents and long run-up times.

 

3TF50 Datasheet

 

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