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Siemens 3VA1220-4EF42-0AJ0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1220-4EF42-0AJ0 SENTRON MCCB, 200 A, 4-Pole, 121

MPN3VA1220-4EF42-0AJ0

Siemens SENTRON 3VA1220-4EF42-0AJ0, molded case circuit breaker, 200 A, 4-pole, line protection, TM240 thermal-magnetic release, 121 kA interrupting at 240 V.

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

3VA1220-4EF42-0AJ0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Product versionLine protection
Integrated auxiliary / alarm switch ref.3VA9988-0AB11
3VA1220-4EF42-0AJ0 — 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
3VA1220-4EF42-0AJ0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
3VA1220-4EF42-0AJ0 — Construction & Connection
ParameterValue
Main circuit connection typelug terminal
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1220-4EF42-0AJ0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorYes
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts3
3VA1220-4EF42-0AJ0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1220-4EF42-0AJ0 — Mechanical
ParameterValue
Height158 mm
Width140 mm
Depth70 mm

Product details

200 A SENTRON MCCB — Line Protection with TM240 Trip

Interrupting capacity reaches 121 kA at 240 V, 75.6 kA at 415 V, 25 kA at 440 V, and 11.9 kA at 690 V — the 415 V figure is the one that governs most European industrial panel designs, giving selectivity headroom for transformer-fed main breakers. The TM240 thermal element tracks the cable temperature curve, so no separate overload relay is needed for the feeder.

Panel Fit and Auxiliary Contacts

Dimensions: 140 mm wide, 158 mm high, 70 mm deep — fits standard SENTRON 3VA mounting footprint. IP40 on the front protects against tool entry in enclosed panels; the breaker itself is not rated for washdown environments. The trip alarm closes on fault, so a PLC digital input can log the event without polling the breaker position.

MPN
3VA1220-4EF42-0AJ0