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Siemens 3VA1150-6EF32-0KA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1150-6EF32-0KA0 SENTRON MCCB, 50 A, 220 kA at 240

MPN3VA1150-6EF32-0KA0

Siemens SENTRON 3VA1150-6EF32-0KA0, molded case circuit breaker, 3-pole, 50 A rated at 40 °C, 220 kA breaking capacity at 240 V, line protection design with shunt trip release.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3VA1150-6EF32-0KA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA11506EF320AA0
3VA1150-6EF32-0KA0 — Ratings
ParameterValue
Number of poles3
Rated operational voltage Ue (AC)690 V
Rated insulation voltage Ui800 V
Current at 40 °C50 A
Current at 45 °C50 A
Current at 50 °C50 A
Current at 55 °C49 A
Current at 60 °C48 A
Current at 65 °C46 A
Current at 70 °C45 A
Switching capacity classH
Breaking capacity at 240 V220 kA
Breaking capacity at 415 V154 kA
Breaking capacity at 440 V121 kA
Breaking capacity at 500 V17 kA
Breaking capacity at 690 V17 kA
Power loss, max.14.6 W
3VA1150-6EF32-0KA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1150-6EF32-0KA0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1150-6EF32-0KA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerYes
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA1150-6EF32-0KA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1150-6EF32-0KA0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.20 000
Height130 mm
Width76.2 mm
Depth70 mm
Height (in)5.12 in
Width (in)3 in
Depth (in)2.76 in

Product details

It carries a 50 A continuous rating at 40 °C, with a slight thermal derating curve: still 50 A at 50 °C, dropping to 45 A at 70 °C.

Breaking capacity across voltages

This MCCB's breaking capacity varies significantly with system voltage: 154 kA at 415 V, 121 kA at 440 V, and 17 kA at both 500 V and 690 V. That 17 kA floor at higher voltages is still adequate for most industrial 690 V circuits, but the real strength is in the 240–440 V range where it handles extreme fault currents.

Shunt trip and basic switch

The auxiliary release is a shunt trip (STL), allowing remote tripping from a control signal. The supplied basic switch is order code 3VA11506EF320AA0, which is the base switching mechanism this breaker ships with.

Frequently asked questions

Where can I buy 3VA1150-6EF32-0KA0?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What is the breaking capacity of 3VA1150-6EF32-0KA0 at 240 V?

The breaking capacity is 220 kA at 240 V, making it suitable for high-fault-current applications like transformer secondaries or large distribution panels.

What is the rated current of 3VA1150-6EF32-0KA0 at 40 °C?

The continuous rated current is 50 A at 40 °C, with derating to 45 A at 70 °C.

Does 3VA1150-6EF32-0KA0 include a shunt trip?

Yes, the auxiliary release is a shunt trip (STL) for remote tripping. No undervoltage release or ground-fault monitoring is included.

MPN
3VA1150-6EF32-0KA0