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Siemens 3VA1220-4EF42-0AH0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1220-4EF42-0AH0 SENTRON MCCB, 200 A, 4-Pole, 121

MPN3VA1220-4EF42-0AH0

Siemens SENTRON 3VA1220-4EF42-0AH0, molded case circuit breaker, line protection, 4 poles, 200 A rated continuous current Iu, TM240 thermal-magnetic overcurrent release, breaking capacity 121 kA at 240 V, 75.6 kA at 415 V, IP40 front protection.

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

3VA1220-4EF42-0AH0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Product versionLine protection
Integrated auxiliary / alarm switch ref.3VA9988-0AB12
3VA1220-4EF42-0AH0 — Ratings
ParameterValue
Number of poles4
Current at 40 °C200 A
Current at 45 °C200 A
Current at 50 °C200 A
Current at 55 °C194 A
Current at 60 °C188 A
Current at 65 °C182 A
Current at 70 °C176 A
Switching capacity classS
Breaking capacity at 240 V121 kA
Breaking capacity at 415 V75.6 kA
Breaking capacity at 440 V25 kA
Breaking capacity at 690 V11.9 kA
3VA1220-4EF42-0AH0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
3VA1220-4EF42-0AH0 — Construction & Connection
ParameterValue
Main circuit connection typelug terminal
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1220-4EF42-0AH0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorYes
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts3
3VA1220-4EF42-0AH0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1220-4EF42-0AH0 — Mechanical
ParameterValue
Height158 mm
Width140 mm
Depth70 mm

Product details

That 200 A rating holds flat from 40 °C through 50 °C, then derates to 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C (–) — so in a warm panel you lose about 12% capacity at the top of the operating range. Breaking capacity is where this frame earns its keep: 121 kA at 240 V, 75.6 kA at 415 V, 25 kA at 440 V, and 11.9 kA at 690 V (–). That is a serious interrupting rating for a 200 A frame — it clears high-fault conditions without cascading upstream, which matters when you are coordinating selectivity in a main or feeder position. Front protection is IP40. The trip unit is TM240, a thermal-magnetic type. That means it is a straightforward, no-electronics overcurrent protector: thermal element for overload, magnetic element for short-circuit. It does not have a voltage trip or a shunt trip built in. For a panel where you just need a reliable main or feeder breaker with high interrupting capacity and no auxiliary electronics, this fits. The 4-pole design handles three-phase plus neutral, or can be used in DC networks per the 3VA device manual.

Dimensions: 158 mm height, 140 mm width, 70 mm depth. Width at 140 mm is standard for this current class; check the back-panel cutout or DIN-rail adapter if you are retrofitting into an existing footprint.

Frequently asked questions

How do I get current pricing and availability for 3VA1220-4EF42-0AH0?

Submit an RFQ. The part is sourced to order through independent distribution; availability and current pricing are confirmed at quote time. No stock count or price is published here.

What is 3VA1220-4EF42-0AH0's breaking capacity?

121 kA at 240 V, 75.6 kA at 415 V, 25 kA at 440 V, and 11.9 kA at 690 V (–). That is a high-interrupting rating for a 200 A frame — suitable for main or feeder positions with high available fault current.

What does the TM240 trip unit mean?

TM240 is a thermal-magnetic overcurrent release. The thermal element handles overload protection; the magnetic element handles short-circuit protection. No electronics, no adjustment — fixed curve, reliable, simple to specify.

MPN
3VA1220-4EF42-0AH0