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Siemens 3VA1120-4EF36-0DH0 — Molded Case Circuit Breakers (MCCB)

SENTRON 3VA1120-4EF36-0DH0 MCCB, 20 A, 3-Pole, 121 kA at 240

MPN3VA1120-4EF36-0DH0

SENTRON 3VA1120-4EF36-0DH0, molded case circuit breaker, 3-pole, 20 A rated at 40 °C, 121 kA breaking capacity at 240 V, with undervoltage release and auxiliary switches.

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

3VA1120-4EF36-0DH0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA11204EF360AA0
Integrated auxiliary / alarm switch ref.3VA9988-0AB12
3VA1120-4EF36-0DH0 — Ratings
ParameterValue
Number of poles3
Rated operational voltage Ue (AC)690 V
Rated insulation voltage Ui800 V
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 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.14.5 W
3VA1120-4EF36-0DH0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1120-4EF36-0DH0 — Construction & Connection
ParameterValue
Main circuit connection typebox terminal on both sides
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1120-4EF36-0DH0 — Accessories & Functions
ParameterValue
Undervoltage releaseYes
Voltage triggerNo
Trip indicatorYes
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts3
3VA1120-4EF36-0DH0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1120-4EF36-0DH0 — 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

Line protection MCCB with integrated undervoltage release

Breaking capacity across voltage levels

Breaking capacity is rated per IEC 60947-2: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. This derating curve is typical for MCCBs — the interrupting ability drops as voltage rises. For 480 V systems (common in North America), the 440 V rating of 52.5 kA is the closest published figure; verify coordination with the upstream device.

Rated 20 A continuously from 40 °C through 55 °C; derates to 19 A at 60–70 °C. For a 76.2 mm wide (3 in), 70 mm deep (2.76 in) footprint, factor in the 14.5 W maximum power loss when calculating enclosure heat rise. The 130 mm height (5.12 in) fits standard MCCB cubicle spacing.

Frequently asked questions

Where can I buy 3VA1120-4EF36-0DH0 and get a price?

This part is available to order through independent distribution. Submit an RFQ for current pricing and availability — figures are confirmed at quote time.

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

121 kA at 240 V per IEC 60947-2. It also carries 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V.

Will 3VA1120-4EF36-0DH0 drop into a panel specified for 3VA1110-5ED36-0AC0?

The 3VA1120-4EF36-0DH0 shares the same 3-pole SENTRON 3VA platform with a 76.2 mm width and 70 mm depth, so it fits the same mounting footprint. However, the 3VA1110-5ED36-0AC0 is a different rating variant; verify the rated current and breaking capacity match your panel's coordination study before swapping.

MPN
3VA1120-4EF36-0DH0