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EntelliGuard* L

Environmental considerations

Ambient temperature Electromagnetic compatibility
EntelliGuard Air Circuit Breakers are designed to The EntelliGuard Air Circuit Breaker and its electronic trip unit
operate normally at temperatures of -5 degrees to +70°C. meet the most stringent requirements of the EN 60947-2 and
They can be used at temperatures down to -20°C with a IEC 1004 standard. The following tests have been successfully
reduced electrical and mechanical life span. completed.
To prevent materials from reaching temperatures that have Harmonics, current dips, interruptions and power
an adverse effect on their electrical and/or mechanical frequency variations
properties, de-rating factors must be applied when the device All EN 60947 annex F, sub-clause F4.1 through 3 requirements
is used in ambient temperatures higher than 50°C.
covering non sinusoidal currents resulting from harmonics
Application Guide Storage temperature - wave forms consisting of a fundamental + 5th harmonic
are met. Testing covering the following elements:
- wave forms consisting of a fundamental + 3rd harmonic
component at 50 and 60Hz
Air Circuit Breakers can be stored at non operational
temperatures of -40° degrees up to +70°C.
component at 50 and 60Hz
- composite wave forms with a fundamental component +
a 3rd, 5th and 7th harmonic at 50 and 60Hz
Influence of altitude
- current dips and current interruptions
Up to an altitude of 2000m above sea level no de-rating of
breaker rated current or rated voltage is applicable. For
altitudes above 2000m the following de-rating factors apply: - frequency variations from 45 to 65Hz in 1 Hz steps
Electrostatic discharge
Intro Alttitude Altitude correction factors EN 60947 annex F, sub-clause F and the IEC 1004-2

≤ 2000M 2500M 4000M - passed level 4, air discharge 15kV
Voltage (Ue) 1 0.95 0.80
A Current (In) 1 0.99 0.96 Radiated, radio frequency, electromagnetic field immunity
test
EN 60947-2 annex F, sub-clause F7 and the IEC 1000-4-3
B Other atmospheric conditions (basic standard)
- passed higher than level 4 field strength 30V/m
The EntelliGuard breaker line has been designed to operate at
the temperatures and relative humidities defined in the
EN 60947 clause 6.1.3.1.
C Electrical fast transient / Burst
They also meet the requirements of the following standards: EN 60947-2 annex F, sub-clause F5 and the IEC 1000-4-4
(basic standard)
D IEC 68-2-1 Cold - passed level 4 burst peak voltage 4kV
IEC 68-2-2 Dry heat
IEC 68-2-3 Damp heat
IEC 68-2-11 Salt Surge immunity test
E IEC 68-2-14 Change of temperature EN 60947-2 annex F, sub-clause F5 and the IEC 1000-4-5
Damp heat cyclic
IEC 68-2-30
IEC 721 Climatic (basic standard)
- passed level 4 voltage 1.2µs/50µs 6kV; current 8µs/20µs 3kA
X
Vibration Dry heat test
Air Circuit Breakers meet the vibration requirements of the EN 60947-2 annex F, sub-clause F8
following standards: - passed all test requirements

IEC 68-2-6 Vibration Thermal shock test
EN 60947-2 annex F, sub-clause F9
- no nuisance tripping within the 28-day temperature cycles
Other
All EntelliGuard devices meet the existing European ROHS
directive.

D.8