Publicité
E
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
-time of the motor.
E
s
[
]
40
20
11
10
6
4
3
2
1
3
4
Multiple of setting current
Approvals and authorizations
Approvals
UL
CSA
USA
Canada
Approval available; rating plates carry the test symbol, if sign obligation exists.
Submitted for approval.
10
2CDC 106 004 M5702
Thermal overload relay TA 80 DU V1000
According to IEC/EN 60 ... 947-1/-4-1/-5-1 for low-voltage switchgear,
Directive 94/9/EG for explosion-protected areas,
EN 60079-14 for electrical equipment for gas explosion endangered areas
7
8
5
6
7.4
Ship classification companies
Phys.-Techn.
Bundesanstalt
PTB
EEx ,,e"
Germany
Germany
Dimensions
GL
ABB STOTZ-KONTAKT
Publicité
