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Siemens 3VA1450-4EF32-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1450-4EF32-0AA0 SENTRON MCCB, 500 A, 3-Pole, TM24

MPN3VA1450-4EF32-0AA0
Active

Siemens SENTRON 3VA1450-4EF32-0AA0, molded case circuit breaker, 3-pole, TM240 overcurrent release, 500 A at 40 °C, 121 kA breaking capacity at 240 V.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3VA1450-4EF32-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA1450-4EF32-0AA0 — Ratings
ParameterValue
Number of poles3
Rated operational voltage Ue (AC)690 V
Rated insulation voltage Ui800 V
Current at 40 °C500 A
Current at 45 °C500 A
Current at 50 °C500 A
Current at 55 °C488 A
Current at 60 °C476 A
Current at 65 °C464 A
Current at 70 °C452 A
Switching capacity classS
Breaking capacity at 240 V121 kA
Breaking capacity at 415 V75.6 kA
Breaking capacity at 440 V75.6 kA
Breaking capacity at 500 V52.5 kA
Breaking capacity at 690 V11.9 kA
Power loss, max.122.7 W
3VA1450-4EF32-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1450-4EF32-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1450-4EF32-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA1450-4EF32-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1450-4EF32-0AA0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.20 000
Height248 mm
Width138 mm
Depth110 mm
Height (in)9.76 in
Width (in)5.43 in
Depth (in)4.33 in

Product details

It is a 3-pole unit rated 500 A at 40 °C, and its interrupting capacity reaches 121 kA at 240 V, 75.6 kA at 415 V, and 11.9 kA at 690 V — so it handles high-fault utility feeds or transformer secondaries where the available short-circuit current is substantial. The TM240 release means the thermal pickup is fixed at 240 A, with magnetic pickup factory-set; you size the breaker so the continuous load stays under the 500 A frame rating, and the TM240 element clears overloads and short-circuits within its band.

Current derating and panel fit

The 500 A rating holds from 40 °C through 50 °C, then derates linearly: 488 A at 55 °C, 476 A at 60 °C, 464 A at 65 °C, and 452 A at 70 °C. The breaker occupies 138 mm width, 248 mm height, and 110 mm depth, which is the standard 3VA4 frame footprint; it bolts into the same mounting pattern as other 3VA4 frame units, so a panel laid out for a 3VA1112-5EE32-0AA0 (a smaller 3VA1 frame) will need a different cutout and bus bar spacing. No rewiring shortcut exists between frame sizes.

Frequently asked questions

Where can I buy 3VA1450-4EF32-0AA0 and how do I get a price?

Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.

What is the breaking capacity of 3VA1450-4EF32-0AA0 at 415 V?

75.6 kA at 415 V.

What is the continuous current rating of 3VA1450-4EF32-0AA0 at 40 °C?

500 A at 40 °C, derating to 452 A at 70 °C.

What compliance documentation does Siemens provide for 3VA1450-4EF32-0AA0?

As a current-production SENTRON MCCB, Siemens publishes IEC/UL nameplate data, RoHS and REACH declarations, and a device manual covering DC network applications.

MPN
3VA1450-4EF32-0AA0