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Siemens 3VA1040-4ED32-0CA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1040-4ED32-0CA0 SENTRON MCCB, 40 A, 3-Pole, 121 k

MPN3VA1040-4ED32-0CA0

Siemens SENTRON 3VA1040-4ED32-0CA0, molded case circuit breaker, 3-pole, 40 A rated at 40 °C, TM210 release, line protection, undervoltage release, 121 kA at 240 V.

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

Specifications

3VA1040-4ED32-0CA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA10404ED320AA0
3VA1040-4ED32-0CA0 — Ratings
ParameterValue
Number of poles3
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 °C38.4 A
Current at 60 °C37.6 A
Current at 65 °C36.8 A
Current at 70 °C36 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.13.3 W
3VA1040-4ED32-0CA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM210
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1040-4ED32-0CA0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1040-4ED32-0CA0 — Accessories & Functions
ParameterValue
Undervoltage releaseYes
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionNo
Auxiliary CO contacts0
3VA1040-4ED32-0CA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1040-4ED32-0CA0 — 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

The Siemens 3VA1040-4ED32-0CA0 is a SENTRON molded case circuit breaker (MCCB) for line protection, carrying a 40 A continuous rating at 40 °C through 50 °C and derating to 36 A at 70 °C. Its 121 kA breaking capacity at 240 V drops to 75.6 kA at 415 V and 11.9 kA at 690 V — the full voltage-dependent curve you need for selectivity studies.

Three-pole, 76.2 mm wide, 130 mm tall, 70 mm deep — standard MCCB footprint for a 40 A frame. The undervoltage release (UVR) is built in, so verify the control voltage matches your coil supply before wiring. Max power loss is 13.3 W; account for that in enclosed panel thermal calculations.

Frequently asked questions

What are the key ratings for 3VA1040-4ED32-0CA0?

It is a 3-pole MCCB rated 40 A continuous at 40 °C, with a breaking capacity of 121 kA at 240 V, 75.6 kA at 415 V, and 11.9 kA at 690 V. Rated insulation voltage is 800 V.

How do I get current pricing and availability for 3VA1040-4ED32-0CA0?

Submit an RFQ through this listing. The part is sourced to order via independent distribution; a confirmed price and lead time are provided at quote time.

Will 3VA1040-4ED32-0CA0 drop into a panel specified around 3VA1110-5ED32-0AA0 without rewiring?

The 3VA1040-4ED32-0CA0 is a 40 A frame; the 3VA1110-5ED32-0AA0 is a higher-current variant. Both share the SENTRON 3VA platform and the same 3-pole, 76.2 mm wide footprint, so the mechanical fit and bus-bar spacing are identical. The wiring difference is the main conductor sizing — the 40 A breaker accepts smaller cable than the 100 A frame.

MPN
3VA1040-4ED32-0CA0