Siemens 3RK1308‑0 00‑0CP0 Series Equipment Manual page 45

Use of fans in group configuration (side-by-side)
1) Operation with power bus (24 V DC) up to 27 A
See the table below for the cases in which you must use a fan depending on the ambient
temperature when operating with a power bus (24 V DC) up to 27 A:
Set operational
current I
e
Horizontal mounting
position
1 A 45°... 60 °C
3 A 45 ... 60 °C
5 A 40°... 60 °C
7 A 35 ... 60 °C
9 A 30°... 60 °C
> 9 A Up to max. 50 °C
> 10 A Up to max. 45 °C
1) In operation with power bus up to 32 A, the maximum usage temperature is reduced by
10 K.
2) Fans are included in the scope of supply
2) Operation with power bus (24 V DC) in accordance with UL/CSA requirements
NOTICE
Fan must be used
In this type of operation you always have to use a fan.
See the table below for the maximum ambient temperature at which you can run the motor
starter when operating it with a power bus (24 V DC) in accordance with UL/CSA
requirements:
Set operational
current I
e
Horizontal mounting position
1 A Up to max. 60 °C
3 A Up to max. 60 °C
5 A Up to max. 60 °C
> 5 A Up to max. 50 °C
> 9 A Up to max. 45 °C
1) Fans are included in the scope of supply
Motor starter (3RK1308‑0**00‑0CP0)
Equipment Manual, 11/2019, A5E34821005002A/RS-AC/003
5.5 Permissible ambient temperatures up to 1000 m above sea level.
Direct-on-line starter
Vertical mounting
position
40°... 50 °C
1)
40°... 50 °C
1)
35 ... 50 °C
1)
30°... 50 °C
1)
25 ... 50 °C
1)
Up to max. 50 °C
1) 2)
Up to max. 45 °C
1) 2)
Direct-on-line starter, reversing starter
1)
Horizontal mounting
position
Ambient temperature
45°... 60 °C
1)
45°... 60 °C
1)
37°... 60 °C
1)
32 ... 60 °C
1)
25°... 55 °C
1)
Up to max. 50 °C
1) 2)
Up to max. 45 °C
1) 2)
Vertical mounting position
Ambient temperature
Up to max. 50 °C
Up to max. 50 °C
Up to max. 50 °C
Up to max. 50 °C
Up to max. 45 °C
Product features
Reversing starter
Vertical mounting
position
40°... 50 °C
1)
40°... 50 °C
1)
32°... 50 °C
1)
27°... 50 °C
1)
20°... 50 °C
1)
Up to max. 50 °C
1) 2)
Up to max. 45 °C
1) 2)
1)
1)
1)
1)
1)
1)
1) 2)
1) 2)
45