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SKU: ABB231
Category: Relay
Overload Relay
Brand:
ABB
Model: TF42-20
Part Number: 1SAZ721201R1049
Description
The
TF42-20 thermal overload relay is an economic electromechanical protection
device for the main circuit. It offers reliable and fast protection for motors
in the event of overload or phase failure. The device has trip class 10.
Further features are the temperature compensation, trip contact (NC), signal
contact (NO), automatic- or manual reset selectable, trip-free mechanism, STOP
function, and a trip indication. The overload relays are connected directly to
the block contactors.
Technical Details
|
Setting
Range |
16
... 20 A |
|
Rated
Operational Voltage |
Auxiliary
Circuit 600 V AC/DC Main
Circuit 690 V AC Main
Circuit 600 V DC |
|
Rated
Operational Current (Ie) |
20
A |
|
Rated
Frequency (f) |
Auxiliary
Circuit 50 Hz Auxiliary
Circuit 60 Hz Auxiliary
Circuit DC Main
Circuit 50 Hz Main
Circuit 60 Hz |
|
Rated
Impulse Withstand Voltage (Uimp) |
Auxiliary
Circuit 6 kV Main
Circuit 6 kV |
|
Rated
Insulation Voltage (Ui) |
690
V |
|
Number
of Poles |
3 |
|
Conventional
Free-air Thermal Current (Ith) |
Auxiliary
Circuit NC 6 A Auxiliary
Circuit NO 4 A |
|
Degree
of Protection |
IP20 |
|
Pollution
Degree |
3 |
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+971 50 792 4960
