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Siemens 3VA1120-3EE42-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1120-3EE42-0AA0 SENTRON MCCB, 20A 4-Pole, 76kA

MPN3VA1120-3EE42-0AA0
Active

Siemens SENTRON 3VA1120-3EE42-0AA0, molded case circuit breaker (MCCB), 4-pole, 20 A rated continuous current, TM220 thermal-magnetic release, line protection version, 76 kA interrupting at 240 V.

Siemens 3VA1120-3EE42-0AA0 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

3VA1120-3EE42-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Product versionLine protection
3VA1120-3EE42-0AA0 — Ratings
ParameterValue
Number of poles4
Current at 40 °C20 A
Current at 45 °C20 A
Current at 50 °C20 A
Current at 55 °C20 A
Current at 60 °C19 A
Current at 65 °C19 A
Current at 70 °C19 A
Switching capacity classN
Breaking capacity at 240 V76 kA
Breaking capacity at 415 V53 kA
Breaking capacity at 440 V32 kA
Breaking capacity at 500 V11.9 kA
Breaking capacity at 690 V11.9 kA
Power loss, max.12 W
3VA1120-3EE42-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM220
3VA1120-3EE42-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typelug terminal
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1120-3EE42-0AA0 — Accessories & Functions
ParameterValue
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA1120-3EE42-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-40 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1120-3EE42-0AA0 — Mechanical
ParameterValue
Height130 mm
Width101.6 mm
Depth70 mm
Height (in)5.1 in
Width (in)4 in
Depth (in)2.8 in

Product details

The Siemens 3VA1120-3EE42-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for line protection in 4-pole configuration, carrying a continuous current of 20 A across the 40 °C to 55 °C band and derating to 19 A at 70 °C.

Breaking capacity drops with system voltage: 76 kA at 240 V, 53 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V.

Front IP40 protection means the breaker face is splash-safe in a closed panel but not washdown-rated. The 4-pole body occupies the same width as a 3-pole plus neutral, so plan the gland plate accordingly.

Frequently asked questions

What is the interrupting capacity of 3VA1120-3EE42-0AA0 at 240 V?

76 kA at 240 V, derating to 53 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V.

What is the rated current and temperature derating for this MCCB?

Rated continuous current is 20 A from 40 °C through 55 °C, derating to 19 A at 60 °C through 70 °C.

Where can I buy 3VA1120-3EE42-0AA0?

Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.

MPN
3VA1120-3EE42-0AA0