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Siemens 3VA2040-5JQ42-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2040-5JQ42-0AA0 SENTRON MCCB, 40 A, 4-Pole, 187 k

MPN3VA2040-5JQ42-0AA0
Active

Siemens SENTRON 3VA2040-5JQ42-0AA0, molded case circuit breaker, 4-pole, 40 A, line protection, breaking capacity 187 kA at 240 V.

Siemens 3VA2040-5JQ42-0AA0 datasheet (PDF)
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

3VA2040-5JQ42-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA2040-5JQ42-0AA0 — Ratings
ParameterValue
Number of poles4
Rated operational voltage Ue (AC)690 V
Rated insulation voltage Ui800 V
Current at 40 °C40 A
Current at 45 °C40 A
Current at 50 °C40 A
Current at 55 °C40 A
Current at 60 °C40 A
Current at 65 °C40 A
Current at 70 °C40 A
Switching capacity classM
Breaking capacity at 240 V187 kA
Breaking capacity at 415 V121 kA
Breaking capacity at 440 V121 kA
Breaking capacity at 500 V75.6 kA
Breaking capacity at 690 V3 kA
Power loss, max.2.2 W
3VA2040-5JQ42-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU560
Overcurrent protection functionLSIG
Ground-fault monitoringSummation current formation L + N conductor
Grounding protection functionYes
3VA2040-5JQ42-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typeon both sides nut keeper kit
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2040-5JQ42-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionYes
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA2040-5JQ42-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2040-5JQ42-0AA0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.25 000
Height181 mm
Width140 mm
Depth86 mm
Height (in)7.13 in
Width (in)5.51 in
Depth (in)3.39 in

Product details

SENTRON 3VA2040-5JQ42-0AA0 — 40 A MCCB with ground-fault monitoring

Breaking capacity across voltage tiers

This breaker delivers 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3 kA at 690 V.

Ground-fault and communication

Built-in ground-fault monitoring uses summation current formation on L+N conductors — catches leakage without an external GFCI module. Communication function is onboard, so it can talk to a BMS or energy management system over the SENTRON bus. No undervoltage release or trip indicator on this variant; those are separate order-code options.

Listed as current-production — no end-of-life notice on this variant.

Frequently asked questions

What is the breaking capacity of this MCCB at 240 V?

187 kA at 240 V AC, dropping to 121 kA at 415/440 V and 75.6 kA at 500 V.

Does this breaker include ground-fault protection?

Yes, it has built-in ground-fault monitoring via summation current formation on L+N conductors.

Where can I buy 3VA2040-5JQ42-0AA0 and how is it quoted?

Sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time.

MPN
3VA2040-5JQ42-0AA0