ABB T 450 DU V1000 Instrucciones De Servicio página 10

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
4
3
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 106 009 M5701
Thermal overload relay T 450 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 LRS
Great Britain
BV DNV
France Norway
PRS
Poland
ABB STOTZ-KONTAKT
RINa
Italy
MRS
Russia