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EntelliGuard* L

Heat dissipation, Watt loss and current ratings at temperatures >50°C

Standards Use
The standard for low voltage equipment is defined in the An enclosure manufacturer can provide the exact data on
EN 60439-1, the EN 50298 and the IEC 60890. These provide a the allowable power dissipation within a certain enclosure.
theoretical method to calculate the temperature rise within an The values depend on the enclosure type, the ventilation it
enclosure. The main element in these calculations is the power offers and where the components are located within
dissipation of the equipment installed. By totalizing this value this enclosure.
for all the installed devices, connections, cables and busbars,
it is possible to calculate the temperature rise within the
enclosure. For normal applications a temperature rise within EntelliGuard Air Circuit Breakers
the enclosure of 50°C is assumed. The devices have been designed to offer the lowest,

feasible heat dissipation value and the highest possible
current ratings when enclosed. The tables here indicate the
heat dissipation values and current ratings at temperatures
within the direct vicinity of the breaker in free air.
The values apply for breakers used with rear connections and
the preferred vertical busbars. The recommended connection Heat dissipation
cross sections can be found on page D.2

EntelliGuard In in A Power loss at In Temperature in the direct environment of the EntelliGuard
Envelope ≤50°C 55°C 60°C 65°C 70°C ≤50°C 55°C 60°C 65°C 70°C
L type per pole in Watts
Fixed Drawout Maximum user Current Ie in A Maximum user Current Ie in A
breaker breaker Vertical connection mode: Fixed pattern Vertical connection mode: Draw out pattern Intro
LG04S 1 400 4,60 8,80 400 400 400 400 400 400 400 400 400 400
LG04N - LG04R 1 400 2,40 4,80 400 400 400 400 400 400 400 400 400 400
LG07S 1 630 11,80 21,80 630 630 630 630 630 630 630 630 630 630
LG07N - LG07R 1 630 6,00 11,90 630 630 630 630 630 630 630 630 630 630 A
LG08S 1 800 19,20 35,20 800 800 800 800 800 800 800 800 800 800
LG08N - LG08R 1 800 9,60 19,20 800 800 800 800 800 800 800 800 800 800
LG10S 1 1000 30,00 55,00 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000
LG10N - LG10R 1 1000 15,00 30,00 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 B
LG13S 1 1250 46,90 85,90 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250
LG13N - LG13R 1 1250 23,40 46,90 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250
LG16S 1 1600 66,60 128,00 1600 1600 1600 1600 1600 1600 1600 1500 1400 1350
LG16N - LG16R 1 1600 38,40 76,80 1600 1600 1600 1600 1600 1600 1600 1600 1600 1600 C
LG20S & N - LJ20R 1 2000 60,00 120,00 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000
LG25S & N - LJ25R 1 2500 93,80 187,00 2500 2500 2500 2500 2500 2500 2450 2232 2100 2000
LG20, C & D - LJ20C 2 2000 60,00 120,00 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000
LG25, C & D - LJ25C 2 2500 93,80 187,00 2500 2500 2500 2500 2500 2500 2500 2500 2500 2500 D
LG32, C & D - LJ32C 2 3200 81,90 184,30 3200 3200 3100 3050 3000 3200 3200 3100 3050 3000
LG40, C & D - LJ40C 2 4000 128,00 256,00 4000 3750 3500 3350 3200 4000 3750 3500 3350 3200
E
EntelliGuard In in A Power loss at In Temperature in the direct environment of the EntelliGuard
Envelope ≤50°C 55°C 60°C 65°C 70°C ≤50°C 55°C 60°C 65°C 70°C
L type per pole in Watts
Fixed Drawout Maximum user Current Ie in A Maximum user Current Ie in A X
breaker breaker Horizontal connection mode: Fixed pattern Horizontal connection mode: Draw out pattern
LG04S 1 400 4,60 8,80 400 400 400 400 400 400 400 400 400 400
LG04N - LG04R 1 400 2,40 4,80 400 400 400 400 400 400 400 400 400 400
LG07S 1 630 11,80 21,80 630 630 630 630 630 630 630 630 630 630
LG07N - LG07R 1 630 6,00 11,90 630 630 630 630 630 630 630 630 630 630
LG08S 1 800 19,20 35,20 800 800 800 800 800 800 800 800 800 800
LG08N - LG08R 1 800 9,60 19,20 800 800 800 800 800 800 800 800 800 800
LG10S 1 1000 30,00 55,00 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000
LG10N - LG10R 1 1000 15,00 30,00 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000
LG13S 1 1250 46,90 85,90 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250
LG13N - LG13R 1 1250 23,40 46,90 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250
LG16S 1 1600 66,60 128,00 1600 1500 1450 1400 1350 1600 1500 1450 1400 1350
LG16N - LG16R 1 1600 38,40 76,80 1600 1600 1600 1600 1600 1600 1600 1600 1600 1600
LG20S & N - LJ20R 1 2000 60,00 120,00 2000 2000 2000 2000 2000 2000 2000 2000 1900 1800
LG25S & N - LJ25R 1 2500 93,80 187,00 2500 2450 2232 2100 2000
LG20, C & D - LJ20C 2 2000 60,00 120,00 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000
LG25, C & D - LJ25C 2 2500 93,80 187,00 2500 2500 2500 2500 2500 2500 2500 2500 2500 2500
LG32, C & D - LJ32C 2 3200 81,90 184,30 3200 3200 3100 3050 3000 3200 2800 2700 2650 2500

D.3