VersiStart II 3 ... 15L ..
13
13.1 Environmental conditions
Note:
Please pay attention and consider for the operation of IE3 motors while
dimensioning of softstarters the resulting higher starting currents.
For the use of IE3 motors we highly recommend to dimension and design
the needed softstarters one size higher.
14. Dimensioning rules
14.1 Dimensioning of pre-fuses
Pre-fuses F can be dimensioned according to the following instructions.
Basically, two types of fuse protection are available for the user.
1. Fusing according to allocation type „1“, DIN EN 60947-4-2.
After a short circuit, the VersiStart II device is allowed to be inoperative and repair work is
possible.
2. Fusing according to allocation type „2“, DIN EN 60947-4-2.
After a short circuit, the device must be suitable for further use. However, there is the
danger that the contacts of the bypass or braking relays weld. Therefore, if possible, these
contacts are to be checked prior to reconnecting these contacts to the mains supply. If this
check cannot be carried out by the user, the device has to be returned to the producer in
order to have it checked.
The following dimensioning information refers to the below operating conditions:
•
Use of standard asynchronous motors
•
Standard acceleration and/or deceleration times
•
Switching frequencies not exceeding the values specified in the data sheet
Storage temperature
-25 ... 75°C
Power reduction
a
a. The reductions refer to rated power output.
above 40°C - 2% per 1°C up to max. 60°C and
altitudes above 1000m -2% per 100m
Ambient temperature
0 ... 40°C up to an installation altitude of 1000m,
not exposed to moisture condensation
Degree of protection
IP 00
Environment
Overvoltage categ. III (TT / TN-systems),
pollution degree 2
Installation class
3
Содержание VersiStart II 11L Series
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