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Siemens 3VA1450-5EF32-0LA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1450-5EF32-0LA0 SENTRON MCCB, 500 A, 3-Pole, TM24

MPN3VA1450-5EF32-0LA0

Siemens SENTRON 3VA series, molded case circuit breaker, 3VA1450-5EF32-0LA0, 3-pole, 500 A at 40 °C, TM240 overcurrent release, undervoltage release, 187 kA at 240 V.

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

Specifications

3VA1450-5EF32-0LA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Product versionLine protection
Basic switch (supplied) ref.3VA14505EF320AA0
3VA1450-5EF32-0LA0 — Ratings
ParameterValue
Number of poles3
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 classM
Breaking capacity at 240 V187 kA
Breaking capacity at 415 V121 kA
Breaking capacity at 500 V76 kA
Breaking capacity at 690 V11.9 kA
Power loss, max.122.7 W
3VA1450-5EF32-0LA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
3VA1450-5EF32-0LA0 — Construction & Connection
ParameterValue
Main circuit connection typelug terminal
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1450-5EF32-0LA0 — Accessories & Functions
ParameterValue
Undervoltage releaseYes
Voltage triggerYes
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA1450-5EF32-0LA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1450-5EF32-0LA0 — Mechanical
ParameterValue
Height248 mm
Width138 mm
Depth110 mm
Height (in)9.8 in
Width (in)5.4 in
Depth (in)4.3 in

Product details

Breaking capacity — the real selectivity number

Rated breaking capacity varies sharply with system voltage: 187 kA at 240 V, 121 kA at 415 V, 76 kA at 500 V, and 11.9 kA at 690 V.

If the enclosure runs hot — say a packed switchboard at 55 °C — you're at 488 A continuous, not 500. That matters for a non-interruptible feeder. Panel cut-out and busbar spacing match the 3VA platform; a panel built for a 3VA1110 will accept this physically, but the 500 A rating and TM240 release are a different trip curve and current level.

MPN
3VA1450-5EF32-0LA0