Ambient Conditions

Overview

Ambient conditions for control cabinet devices:

Procedure	Parameter	Value	Basis
Operation	Class 3K3		IEC/EN 60721-3-3
	Ingress protection rating of the housing	IP20 with installed connectors, and, for LXM62LT, with installed wires.
	Supplemental ingress protection rating of installed product	IP54
	Pollution degree	2
	Ambient temperature	+5...+55 °C (+41...131 °F)
	Power derating above 40 °C (104 °F)	+40...+55 °C (+104...+131 °F) (starting +40 °C (+104 °F): -2% per K by I_NC and I_SC) (I_NC = nominal current; I_SC = peak current)
	Relative humidity	5...85%
	Condensation	No
	Formation of ice	No
	Other 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%
	Condensation	No
	Formation of ice	No
	Other 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%
	Condensation	No
	Formation of ice	No
	Other 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: 55 °C (131 °F) maximum ambient temperature Reduction 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: 40 °C (104 °F) maximum ambient temperature Reduction of the continuous power by 1% per 100 m (328 ft.) above 1000 m (3281 ft.) Overvoltages 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.)

Characteristic

Value

Installation altitude without power reduction

<1000 m (<3281 ft)

Installation altitude while complying with the following conditions:

55 °C (131 °F) maximum ambient temperature
Reduction 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:

40 °C (104 °F) maximum ambient temperature
Reduction of the continuous power by 1% per 100 m (328 ft.) above 1000 m (3281 ft.)
Overvoltages 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.