Environmental Conditions

Conditions for Operation

The maximum permissible ambient temperature during operation depends on the clearances between the devices and on the power consumption. Observe the pertinent instructions in the section Installation.

Characteristic

Unit

Value

Ambient temperature (no icing, non-condensing)

°C

(°F)

0 ... 50

(32 ... 122)

The following relative humidity is permissible during operation:

Characteristic

Unit

Value

Relative humidity (non-condensing)

%

5 ... 95

The installation altitude is defined in terms of altitude above mean sea level.

Characteristic

Unit

Value

Installation altitude above mean sea level without derating.

m

(ft)

<1000

(<3281)

Altitude above mean sea level when all of the following conditions are met:

  • Maximum ambient temperature 45 °C (113 °F)

  • Reduction of the continuous power by 1% per 100 m (328 ft) above 1000 m (3281 ft)

m

(ft)

1000 ... 2000

(3281 ... 6562)

Altitude above mean sea level when all of the following conditions are met:

  • Maximum ambient temperature 40 °C (104 °F)

  • Reduction of the continuous power by 1% per 100 m (328 ft) above 1000 m (3281 ft)

  • Overvoltages of the supply mains limited to overvoltage category II as per IEC 60664-1

  • No IT grounding system

m

(ft)

2000 ... 3000

(6562 ... 9843)

Conditions for Transportation and Storage

The environment during transportation and storage must be dry and free from dust.

Characteristic

Unit

Value

Temperature

°C

(°F)

-25 ... 70

(-13 ... 158)

The following relative humidity is permissible during transportation and storage:

Characteristic

Unit

Value

Relative humidity (non-condensing)

%

<95

Installation Site and Connection

For operation, the device must be mounted in a closed and appropriately rated control cabinet secured by a keyed or tooled locking mechanism. The device may only be operated with a permanently installed connection.

Pollution Degree and Degree of Protection

Characteristic

Value

Pollution degree

2

Degree of protection

IP20

Vibration and Shock

Characteristic

Value

Vibration, sinusoidal

Tested as per IEC 60068-2-6

3.5 mm (2 ... 8.4 Hz)

10 m/s2 (8.4 ... 200 Hz)

Shock, semi-sinusoidal

Tested as per IEC 60068-2-27

150 m/s2 (for 11 ms)