Ambient Conditions

Overview

Ambient conditions for control cabinet devices:

Procedure

Parameter

Value

Basis

Operation

Class 3K3

IEC/EN 60721-3-3

Degree of protection housing

IP20 with installed connectors, and, for LXM62LT, with installed wires.

Supplemental degree of protection of installed product

IP54

Pollution degree

2

Ambient temperature

+5...+55 °C (+41...131 °F)

oPower derating above 40 °C (104 °F)

+40...+55 °C (+104...+131 °F) (starting +40 °C (+104 °F): -2% per K by INC and ISC)

(INC = nominal current; ISC = peak current)

Relative humidity

5...85%

oCondensation

No

oFormation of ice

No

oOther water

No

Class 3M4

Shock

100 m/s2

Vibration

10 m/s2

Transport

Class 2K3

IEC/EN 60721-3-2

Ambient temperature

-25...+70 °C (-13...+158 °F)

Relative humidity

5...95%

oCondensation

No

oFormation of ice

No

oOther water

No

Class 2M2

Shock

300 m/s2

Vibration

10 m/s2

Long-term storage in transport packaging

Class 1K3

IEC/EN 60721-3-1

Ambient temperature

-25...+55 °C (-13...+131 °F)

Relative humidity

5...95%

oCondensation

No

oFormation of ice

No

oOther water

No

Installation Altitude

The installation altitude is defined as height above sea level.

Characteristic

Value

Installation altitude without power reduction

<1000 m (<3281 ft)

Installation altitude while complying with the following conditions:

o55 °C (131 °F) maximum ambient temperature

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

1000...2000 m (3281...6562 ft.)

Installation altitude above sea level when complying with the following conditions:

o40 °C (104 °F) maximum ambient temperature

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

oOvervoltages of the supplying grid limited to an overvoltage category II according to IEC 60664-1/IEC 61800-5-1

2000...3000 m (6562...9843 ft.)

Degree of Protection When Using the Safety Function

Ensure that no conductive pollution can deposit in the product (pollution degree 2). Conductive pollution can cause the safety function to be ineffective.