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Siemens 3VA1112-1AA32-0HH0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1112-1AA32-0HH0 Switch Disconnector, 125 A, 3-Pol

MPN3VA1112-1AA32-0HH0

Siemens SENTRON 3VA1112-1AA32-0HH0, switch disconnector, 3-pole, 125 A, IEC frame 160, shunt trip (STL) 12-30V DC / 24 V AC, 2 auxiliary switches + 1 trip alarm switch HQ, 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

3VA1112-1AA32-0HH0 — Identification
ParameterValue
Product designationSwitch disconnector
Brand / rangeSENTRON
Product versionin MCCB design
3VA1112-1AA32-0HH0 — Ratings
ParameterValue
Number of poles3
Current at 40 °C125 A
Current at 45 °C125 A
Current at 50 °C125 A
Current at 55 °C125 A
Current at 60 °C125 A
Current at 65 °C125 A
Current at 70 °C125 A
Power loss, max.38 W
3VA1112-1AA32-0HH0 — Construction & Connection
ParameterValue
Main circuit connection typebusbar connection
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1112-1AA32-0HH0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerYes
Trip indicatorYes
Motor drive optionYes
Auxiliary CO contacts3
3VA1112-1AA32-0HH0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1112-1AA32-0HH0 — Mechanical
ParameterValue
Height130 mm
Width76.2 mm
Depth70 mm

Product details

Switch disconnector, not a breaker

The Siemens SENTRON 3VA1112-1AA32-0HH0 is a 3-pole switch disconnector in the 3VA1 IEC frame 160, rated 125 A continuous without overload or short-circuit protection — it is a disconnect, not a molded case circuit breaker. That distinction matters for BOM fit: this part provides visible isolation and switching under load, but upstream protection (fuse or MCCB) must cover the fault-clearing duty. The shunt trip (STL) operates on 12–30 V DC or 24 V AC 50/60 Hz, letting a remote E-stop or PLC output drop the load without opening the door.

Panel fit: same footprint as the 3VA1 MCCB

Dimensions: 70 mm deep, 76.2 mm wide, 130 mm high — identical to the 3VA1 MCCB siblings. IP40 on the front face, so it belongs in a closed enclosure.

Frequently asked questions

Will 3VA1112-1AA32-0HH0 drop into a panel specified for 3VA1112-5EE32-0AA0?

Yes — the dimensions (70 x 76.2 x 130 mm), front-terminal arrangement, and busbar connection are identical. No rewiring or gland-plate modification needed.

What is the shunt trip voltage for this switch disconnector?

The shunt trip (STL) operates on 12–30 V DC or 24 V AC 50/60 Hz.

MPN
3VA1112-1AA32-0HH0