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Siemens 3VA1110-1AA42-0BA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1110-1AA42-0BA0 SENTRON Switch Disconnector, 100

MPN3VA1110-1AA42-0BA0

Siemens SENTRON 3VA1110-1AA42-0BA0 switch disconnector, IEC frame 160, 4-pole SD100, In=100 A, without overload or short-circuit protection, undervoltage release (UVR) 24 V DC, busbar connection, front terminal.

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

3VA1110-1AA42-0BA0 — Identification
ParameterValue
Product designationSwitch disconnector
Brand / rangeSENTRON
3VA1110-1AA42-0BA0 — Ratings
ParameterValue
Number of poles4
Rated operational voltage Ue (AC)690 V
Rated insulation voltage Ui800 V
Current at 40 °C100 A
Current at 45 °C100 A
Current at 50 °C100 A
Current at 55 °C100 A
Current at 60 °C100 A
Current at 65 °C100 A
Current at 70 °C100 A
Power loss, max.38 W
3VA1110-1AA42-0BA0 — Construction & Connection
ParameterValue
Main circuit connection typebusbar connection
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1110-1AA42-0BA0 — Accessories & Functions
ParameterValue
Undervoltage releaseYes
Voltage triggerNo
Trip indicatorNo
Motor drive optionYes
Auxiliary CO contacts0
3VA1110-1AA42-0BA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1110-1AA42-0BA0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.15 000
Height130 mm
Width101.6 mm
Depth70 mm

Product details

The Siemens 3VA1110-1AA42-0BA0 is a SENTRON switch disconnector in MCCB design — a 4-pole, 100 A rated device that provides visible isolation for a circuit but carries no overload or short-circuit protection. It's built for applications where you need a certified disconnect point without the trip curve of a molded case breaker.

Undervoltage release and control wiring

Includes an undervoltage release (UVR) that trips the disconnector when control voltage drops. No auxiliary contacts, voltage trigger, or communication function are present. The main circuit connects via busbar connection at the front terminals. An optional motor drive can be added for remote switching.

Front protection is IP40.

Frequently asked questions

Will 3VA1110-1AA42-0BA0 drop into a panel specified for 3VA1110-5EF32-0LA0 without rewiring?

No — 3VA1110-5EF32-0LA0 is a 3-pole molded case circuit breaker with overcurrent protection, while this part is a 4-pole switch disconnector without protection. The width differs (76.2 mm vs 101.6 mm), and the wiring scheme for the UVR vs a universal release is different. Panel rework is required.

MPN
3VA1110-1AA42-0BA0