3WT8252-0AA00-0AA0
FIXED-MOUNT NON-AUT. CIRCUIT-B.

From SIEMENS

FIXED-MOUNT NON-AUT. CIRCUIT-B. 3-POLE, SIZE II IN=2500A TO 500V, AC50/60HZ ICU=66KA AT 500V ONLY MOD-CENTER
Model
Product brand nameSENTRON
Product designation3WT air circuit breaker
Design of the productIEC 60947-2
Design of the operating mechanismPushbutton
Design of the overcurrent releaseWithout, version old
General technical data
Number of poles3
Field of applicationNON-AUTOMATIC CIRCUIT-BREAKER
Size of the circuit-breakerII
Electrical endurance (switching cycles) / typical4 000
Usage categoryA
circuit-breaker / Design3WT8
Mechanical service life (switching cycles) / typical12 000
Reference code / acc. to DIN 40719 extended according to IEC 204-2 / acc. to IEC 750Q
Voltage
Rated operational voltage Ue / max.500 V
Rated insulation voltage Ui1 000 V
Insulation voltage
rated value690 V
at AC / rated value1 000 V
Surge voltage resistance / rated value12 kV
Operating voltage
at AC / at 50/60 Hz / rated value500 V
Protection class
Protection class IPIP20
Current
Short-time withstand current (Icw)
at AC / at 415 V / limited to 0.5 s / rated value66 kA
Main circuit
Operating frequency / 1 / rated value50 Hz
Auxiliary circuit
Number of CO contacts / for auxiliary contacts0
Number of NC contacts / for auxiliary contacts2
Number of NO contacts / for auxiliary contacts2
Operating current / of auxiliary contacts / at AC-15 / at 230 V6 A
Suitability
Suitability for use
Disconnecting meansYes
Product details
Product component
Trip indicatorNo
Auxiliary switchYes
Product function
Product function
Overload protectionNo
Accessories
accessoriesNo further Z accessories
Short circuit
Maximum short-circuit current breaking capacity (Icu)
at 500 V / rated value66 kA
Mechanical Design
Mounting typefixed mounting
Mounting positionwith vertical mounting surface +/-180° rotatable, with vertical mounting surface +/- 30° tiltable to the front and back
Environmental conditions
Ambient temperature / during operation
minimum-20 °C
maximum70 °C
Ambient temperature / during storage
minimum-40 °C
maximum80 °C

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