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circuit breaker 3VA2 IEC frame 250 breaking capacity class M
Icu=55kA @ 415V 3-pole, motor protection ETU350M, LSI, In=200A
overload protection Ir=80A...200A short-circuit protection Isd=3...15 x
Ir, Ii=15 x In nut keeper kit
Model
product brand name SENTRON
product designation Molded case circuit breaker
Product version Motor protection
design of the overcurrent release ETU350M
protection function of the overcurrent release LSI
number of poles 3
General technical data
Tension assignée d'isolement Ui 800 V
Max. rated operational voltage Ue with AC 50/60Hz 690 V
operating power / at AC-3 / at 400 V 75 000 W
operating power / at AC-3 / at 230 V 55 000 W
power loss W / maximum 46 W
Active power loss / for rated value of the current / at
AC / in hot operating state / per pole
15.33 W
mechanical service life (switching cycles) / typical 20 000
Electrical endurance (switching cycles) / at AC-1 / at
380/415 V 50/60 Hz
10 000
Electrical endurance (switching cycles) / at AC-1 / at
690 V 50/60 Hz
5 000
Electrical endurance (switching cycles) / at AC-3 / at
380/415 V 50/60 Hz
6 500
Neutral conductors / upgradeable/retrofittable No
ground fault monitoring version Without
product function
communication function No
phase failure detection Yes
other measurement function No
net weight 2.3 kg
Current
Max. rated operational current of the frame size 250 A
Courant permanent assigné Iu 200 A
operating current
at 40 degrees centigrade 200 A
at 45 degrees centigrade 200 A
at 50 degrees centigrade 200 A
at 55 degrees centigrade 200 A
at 60 degrees centigrade 200 A
at 65 degrees centigrade 200 A
at 70 degrees centigrade 200 A
Switching capacity according to IEC 60947
switching capacity class of the circuit breaker M
maximum short-circuit current breaking capacity (Icu)
at 240 V 85 kA
at 415 V 55 kA
at 440 V 55 kA
at 500 V 36 kA
at 690 V 3.6 kA
operational short-circuit current breaking capacity
(Ics)
at 240 V 85 kA
at 415 V 55 kA
at 440 V 55 kA
at 500 V 36 kA
at 690 V 3.6 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
at 690 V 5.4 kA
Adjustable parameters
Adjustable response value current / lg min. 80 A
Adjustable response value current / lg min. 200 A
Adjustable response value current / lg min. 600 A
Adjustable response value current / lg min. 3 000 A
Short-term delayed / tripping switchable /
I2t=ON/OFF
No
Adjustable response value current / lg min. 0.03 s
Adjustable response value current / lg min. 0.03 s
Adjustable response value current / li min. 3 000 A
Adjustable response value current / li max. 3 000 A
Ground fault protection / tripping switchable /
I2t=ON/OFF
No
Mechanical Design
height in 7.1 in
Height 181 mm
width in 4.1 in
Width 105 mm
depth in 3.4 in
depth 86 mm
Connections
arrangement of electrical connectors / for main
current circuit
Front terminal
type of electrical connection / for main current circuit on both sides nut keeper kit
Type of connectable conductor cross-section,
connection screw, width x thickness , min.
13 x 1 mm
Type of connectable conductor cross-section,
connection screw, width x thickness , max.
25 x 8.5 mm
Auxiliary circuit
number of CO contacts / for auxiliary contacts 0
Accessories
product extension / optional / motor drive Yes
Environmental conditions
protection class IP / on the front IP40
ambient temperature
during operation / minimum -25 degrees centigrade
during operation / maximum 70 degrees centigrade
during storage / minimum -40 degrees centigrade
during storage / maximum 80 degrees centigrade
Certificates
reference code / acc. to DIN EN 81346-2 Q