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Siemens 3VA1112-1AA32-0BA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1112-1AA32-0BA0 SENTRON Switch Disconnector, 125

MPN3VA1112-1AA32-0BA0

Siemens SENTRON 3VA1112-1AA32-0BA0, switch disconnector in MCCB design, IEC frame 160, 3-pole, SD100, In = 125 A, without overload or short-circuit protection, undervoltage release 24 V DC, busbar connection, front terminal, IP40 front.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3VA1112-1AA32-0BA0 — Identification
ParameterValue
Product designationSwitch disconnector
Brand / rangeSENTRON
Product versionin MCCB design
3VA1112-1AA32-0BA0 — Ratings
ParameterValue
Number of poles3
Power loss, max.38 W
3VA1112-1AA32-0BA0 — Construction & Connection
ParameterValue
Main circuit connection typebusbar connection
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1112-1AA32-0BA0 — Accessories & Functions
ParameterValue
Undervoltage releaseYes
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA1112-1AA32-0BA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1112-1AA32-0BA0 — Mechanical
ParameterValue
Height130 mm
Width76.2 mm
Depth70 mm

Product details

It provides no overload or short-circuit protection — its job is isolation and switching under load, not fault interruption. The part carries a short-time withstand rating of 2 kA for 1 s and 2 kA for 0.5 s, meaning it can survive a fault long enough for an upstream breaker to clear, but it is not a circuit breaker itself.

Voltage and duty ratings

Undervoltage release and auxiliary options

Factory-fitted with a 24 V DC undervoltage release (UVR). No auxiliary contacts are fitted (0 CO contacts), and no trip indicator or communication module is present. The front terminal accepts busbar connection for the main circuit. An optional motor drive can be added for remote switching.

IP40 on the front. Mechanical endurance rated at 15 000 latching operations.

MPN
3VA1112-1AA32-0BA0