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Siemens 3VA1112-1AA36-0KA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1112-1AA36-0KA0 SENTRON Switch Disconnector, 125

MPN3VA1112-1AA36-0KA0

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, front terminal connection.

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

3VA1112-1AA36-0KA0 — Identification
ParameterValue
Product designationSwitch disconnector
Brand / rangeSENTRON
3VA1112-1AA36-0KA0 — 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
3VA1112-1AA36-0KA0 — Construction & Connection
ParameterValue
Main circuit connection typeTerminal connection
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1112-1AA36-0KA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerYes
Trip indicatorNo
Motor drive optionYes
Auxiliary CO contacts0
3VA1112-1AA36-0KA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1112-1AA36-0KA0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.15 000
Height130 mm
Width76.2 mm
Depth70 mm

Product details

Switch Disconnector for Isolation Duty

The Siemens 3VA1112-1AA36-0KA0 is a SENTRON 3VA1 switch disconnector in an MCCB-style housing, rated for 125 A continuous current across the full -25 °C to 70 °C operating range — no derating needed up to the maximum ambient. The shunt trip operates on 220-250 V DC or 208-277 V AC. Mechanical endurance is 15,000 operating cycles typical.

The 3VA1112-1AA36-0KA0 measures 130 mm high, 76.2 mm wide (roughly 3 inches — three 1-inch pole spaces), and 70 mm deep. It uses front terminal connections for the main circuit, accepting lug-type conductors. An optional motor drive can be added for remote operation.

Frequently asked questions

What is the closest functional second-source for 3VA1112-1AA36-0KA0?

The closest functional peer is the 3VA1110-5EE32-0JA0, a 100 A molded case circuit breaker with overcurrent release (TM220) and line protection. It shares the same frame size, dimensions, and shunt trip option, but it includes overload and short-circuit protection, while the 3VA1112-1AA36-0KA0 is a pure switch disconnector without protection. They are not drop-in replacements unless the circuit design already provides separate protection.

Where can I buy 3VA1112-1AA36-0KA0?

This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm offer.

MPN
3VA1112-1AA36-0KA0