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Siemens 3VA1112-1AA32-0KC0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1112-1AA32-0KC0 SENTRON Switch Disconnector, 125

MPN3VA1112-1AA32-0KC0

Siemens SENTRON 3VA1 IEC frame 160, switch disconnector, 3-pole, In=125 A, without overload or short-circuit protection, shunt trip STL 220-250 V DC / 208-277 V AC, 2 auxiliary switches 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

3VA1112-1AA32-0KC0 — Identification
ParameterValue
Product designationSwitch disconnector
Brand / rangeSENTRON
3VA1112-1AA32-0KC0 — Ratings
ParameterValue
Number of poles3
Rated operational voltage Ue (AC)690 V
Rated insulation voltage Ui800 V
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
3VA1112-1AA32-0KC0 — Construction & Connection
ParameterValue
Main circuit connection typebusbar connection
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1112-1AA32-0KC0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerYes
Trip indicatorNo
Motor drive optionYes
Auxiliary CO contacts2
3VA1112-1AA32-0KC0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1112-1AA32-0KC0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.15 000
Height130 mm
Width76.2 mm
Depth70 mm

Product details

The Siemens 3VA1112-1AA32-0KC0 is a SENTRON switch disconnector built in a molded-case circuit breaker (MCCB) frame — IEC frame 160, 3-pole. It carries no overload or short-circuit protection elements — this is a pure disconnecting switch for applications where protection is handled upstream or by separate devices. The shunt trip release (STL) operates on DC or AC voltage. Two auxiliary switches (HQ) provide status feedback via one normally-open and one normally-closed contact pair, giving two changeover contacts total. The main circuit connects via busbar connection at the front terminals.

The 3VA1112-1AA32-0KC0 occupies a 76.2 mm wide, 130 mm tall, 70 mm deep footprint — standard for the 3VA1 frame. It mounts in a panel or enclosure with front-terminal busbar connections. Maximum power loss is 38 W, which matters for thermal management inside a sealed enclosure. Mechanical service life is rated 15,000 operating cycles typical. An optional motor drive can be added for remote operation. The part carries no communication function.

Frequently asked questions

Will 3VA1112-1AA32-0KC0 drop into a panel specified around 3VA1112-5EE32-0AA0 without rewiring?

Yes — both parts share the same 3VA1 frame dimensions (76.2 mm wide, 130 mm tall, 70 mm deep) and front-terminal busbar connection. The switch disconnector has no overcurrent release, so the panel wiring for the main circuit is identical, but the auxiliary contact arrangement differs (this unit has 2 CO contacts; the MCCB variant has none). If the panel relies on those auxiliary contacts for status feedback, no rewiring is needed — they are already present.

What compliance documentation does this brand provide for 3VA1112-1AA32-0KC0?

As a Siemens SENTRON product, it carries the manufacturer's standard compliance documentation including CE marking for the European market. Specific certificates (UL, CSA, IEC) should be verified against the project's jurisdictional requirements at quote time.

MPN
3VA1112-1AA32-0KC0