Example Of The Suitability Of An Overload Relay; Dimensions - ABB TA25DU-V1000 Betriebsanleitung

Thermal overload relay TA25DU-V1000
According to IEC/EN 60947-1/-4-1/-5-1 for low-voltage switchgear,
Directive 94/9/EC for explosion-protected areas,
EN 60079-14 for electrical equipment for gas explosion endangered areas

Example of the suitability of an overload relay

The motor with increased security has the following data:
– Output = 7,5 kW
– I /I = 7,4
A N
– t -time = 11 seconds
E
Tripping curve downwards, the tripping time is lower than the t
(s)
40
20
11
10
6
4
3
2
1
3 4 5 6 7
7.4
multiple of setting current
Example of a tripping curve

Dimensions

in mm / inches
13.5 0.53"
13.5 0.53"
44 1.73"
10 - 2CDC106001M5703 / 10.2013
8
13.5 0.53"
52.2 2.06"
39 1.54"
73.5 2.89"
-time of the motor.
E
Operation mode 1-phase / 3-phase
2.5 0.1"
6 0.24"
94 3.7"
1~ 1~ 3~ 3~