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

Siemens 3VA1120-3EF36-0DH0 SENTRON MCCB, 20 A, 3-Pole, 75.6

MPN3VA1120-3EF36-0DH0

Siemens SENTRON 3VA1120-3EF36-0DH0, molded case circuit breaker, 3-pole, 20 A at 40 °C, breaking capacity 75.6 kA at 240 V, 70 mm depth, undervoltage release.

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

3VA1120-3EF36-0DH0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA11203EF360AA0
Integrated auxiliary / alarm switch ref.3VA9988-0AB12
3VA1120-3EF36-0DH0 — 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 classN
Breaking capacity at 240 V75.6 kA
Breaking capacity at 415 V52.5 kA
Breaking capacity at 440 V32 kA
Breaking capacity at 500 V11.9 kA
Breaking capacity at 690 V11.9 kA
Power loss, max.14.5 W
3VA1120-3EF36-0DH0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1120-3EF36-0DH0 — Construction & Connection
ParameterValue
Main circuit connection typebox terminal on both sides
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1120-3EF36-0DH0 — Accessories & Functions
ParameterValue
Undervoltage releaseYes
Voltage triggerNo
Trip indicatorYes
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts3
3VA1120-3EF36-0DH0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1120-3EF36-0DH0 — 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

It carries a continuous current of 20 A across its full ambient range up to 55 °C, derating to 19 A at 70 °C. That means it holds its full rating in a warm panel — no early derate headache.

Breaking capacity by voltage level

Breaking capacity climbs with system voltage: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V. That 75.6 kA at 240 V gives headroom for high-fault panels on 240 V delta or 277/480 V wye services where the line-to-ground fault current is the limiting factor.

Integrated releases and auxiliary switches

That UVR means the breaker drops out on a voltage dip — useful for motor branch circuits where you want automatic disconnect on loss of control power. The auxiliary switch set gives status feedback for PLC or SCADA monitoring without adding a separate module.

Rated insulation voltage 800 V, power loss 14.5 W maximum at rated load. The 3-pole block fits a standard DIN-rail or screw-mount backplate.

Frequently asked questions

How do I get current pricing and availability for 3VA1120-3EF36-0DH0?

Submit an RFQ through this listing. The part is sourced and quoted to order through independent distribution; availability and current pricing are confirmed at quote time.

What is 3VA1120-3EF36-0DH0's breaking capacity at 240 V?

75.6 kA at 240 V. It also carries 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at 500 V and 690 V.

What compliance documentation does this brand provide for 3VA1120-3EF36-0DH0?

As a Siemens SENTRON MCCB, it carries the standard CE, UL, and CSA certifications for the series. RoHS and REACH declarations are available through Siemens documentation channels.

MPN
3VA1120-3EF36-0DH0