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circuit breaker 3VM1 IEC frame 400 breaking capacity class S
Icu=55kA @ 415V 4-pole, line protection TM220, ATFM, In=400A
overload protection Ir=280A...400A short-circuit protection Ii=10 x In
N conductor unprotected nut keeper kit
Model
product brand name SENTRON
product designation Molded case circuit breaker
Product version Line protection
design of the overcurrent release TM220
protection function of the overcurrent release LI
number of poles 4
General technical data
Tension assignée d'isolement Ui 690 V
Max. rated operational voltage Ue with AC 50/60Hz 500 V
power loss W / maximum 92.1 W
Active power loss / for rated value of the current / at
AC / in hot operating state / per pole
30.7 W
mechanical service life (switching cycles) / typical 8 000
Electrical endurance (switching cycles) / at AC-1 / at
380/415 V 50/60 Hz
6 000
Neutral conductors / upgradeable/retrofittable No
ground-fault monitoring version Without
product function
communication function No
other measurement function No
net weight 5.1 kg
Current
Max. rated operational current of the frame size 400 A
Courant permanent assigné Iu 400 A
operational current
at 40 degrees centigrade 400 A
at 45 degrees centigrade 400 A
at 50 degrees centigrade 400 A
at 55 degrees centigrade 392 A
at 60 degrees centigrade 384 A
at 65 degrees centigrade 376 A
at 70 degrees centigrade 367 A
Switching capacity according to IEC 60947
switching capacity class of the circuit breaker M
breaking capacity maximum short-circuit current (Icu)
at 240 V 85 kA
at 415 V 55 kA
at 440 V 55 kA
at 500 V 36 kA
breaking capacity operating short-circuit current (Ics)
at 240 V 63 kA
at 415 V 41 kA
at 440 V 41 kA
at 500 V 27 kA
short-circuit current making capacity (Icm)
at 240 V 187 kA
at 415 V 121 kA
at 440 V 121 kA
at 500 V 76 kA
design of short-circuit protection For switching capacity values in DC power systems, see the 3VA
Molded Case Circuit Breaker Manual; link available under Service
& Support in the last chapter
Adjustable parameters
Adjustable response value current / lg min. 280 A
Adjustable response value current / lg min. 400 A
Adjustable response value current / li min. 4 000 A
Adjustable response value current / li max. 4 000 A
design of the N-conductor protection Without
Ground fault protection / tripping switchable /
I2t=ON/OFF
No