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Siemens 3VA1150-4EF42-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1150-4EF42-0AA0 SENTRON MCCB, 50 A, 4-Pole, 121 k

MPN3VA1150-4EF42-0AA0
Active

Siemens SENTRON, Molded case circuit breaker, 3VA1150-4EF42-0AA0, 4-pole, 50 A, TM240 thermal-magnetic trip, 121 kA interrupting at 240 VAC, IP40 front.

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

3VA1150-4EF42-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA1150-4EF42-0AA0 — Ratings
ParameterValue
Number of poles4
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 classS
Breaking capacity at 240 V121 kA
Breaking capacity at 415 V75.6 kA
Breaking capacity at 440 V52.5 kA
Breaking capacity at 500 V11.9 kA
Breaking capacity at 690 V11.9 kA
Power loss, max.14.6 W
3VA1150-4EF42-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1150-4EF42-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1150-4EF42-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA1150-4EF42-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1150-4EF42-0AA0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.20 000
Height130 mm
Width101.6 mm
Depth70 mm
Height (in)5.12 in
Width (in)4 in
Depth (in)2.76 in

Product details

Siemens SENTRON 3VA1150-4EF42-0AA0 — 50 A 4-Pole MCCB, Line Protection

Four poles suit 3-phase + neutral applications, or three-phase with a switched neutral. Interrupting capacity is published at multiple voltages: 121 kA at 240 VAC, 75.6 kA at 415 VAC, 52.5 kA at 440 VAC, and 11.9 kA at 500 VAC and 690 VAC. At 480 V systems — common in North American industrial panels — the 440 V figure (52.5 kA) is the closest published bound; expect the actual SCCR to fall between the 440 V and 500 V values.

Frequently asked questions

Where can I buy the 3VA1150-4EF42-0AA0 and how is it quoted?

This MCCB is sourced and quoted to order against an RFQ through independent industrial-automation distribution. Current pricing and availability are confirmed at quote time.

What is the interrupting capacity of this MCCB at 240 VAC?

The interrupting capacity is 121 kA at 240 VAC. At 415 VAC it is 75.6 kA, and at 440 VAC it is 52.5 kA.

Does the 3VA1150-4EF42-0AA0 include a ground-fault module?

No. This variant is specified without ground-fault monitoring. It uses a TM240 thermal-magnetic trip unit for overcurrent and short-circuit protection only.

What are the physical dimensions of this breaker?

The dimensions are 130 mm height, 101.6 mm width, and 70 mm depth. The front-face protection rating is IP40.

MPN
3VA1150-4EF42-0AA0