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Siemens 3RA2120-4BA26-0AP6 — Motor Starters

Siemens 3RA2120-4BA26-0AP6 SIRIUS Motor Starter

MPN3RA2120-4BA26-0AP6

Siemens SIRIUS 3RA2120-4BA26-0AP6 non-fused direct motor starter, Size S0, 7.5 kW at 400 V AC-3, Class 10, 45 x 193.1 x 97.1 mm.

Siemens 3RA2120-4BA26-0AP6 datasheet (PDF)
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

3RA2120-4BA26-0AP6 — Identification
ParameterValue
Product designationnon-fused motor starter 3RA2
Main circuit poles3
BrandSIRIUS
Load feeder sizeS0
Product design / constructiondirect starter
Circuit-breaker sizeS0
Included contactor (type)3RT2026-1AP60
Included circuit-breaker (type)3RV2021-4BA10
Included link module (type)3RA2921-1AA00
3RA2120-4BA26-0AP6 — Ratings & Performance
ParameterValue
Rated motor power at 400 V7 500 W
Operational current Ie, AC-3 at 400 V15.5 A
Rated voltage at AC-3, max.690 V
Rated motor power at 460/480 V (hp)10 hp
Rated motor power at 575/600 V (hp)15 hp
Rated current at 480 V15.2 A
Rated current at 600 V17.8 A
Rated operating frequency50 ... 60 Hz
Rated impulse withstand voltage (Uimp)6 kV
Rated insulation voltage Ui (AC, pollution degree 3)690 V
Mechanical service life, typ. (switching cycles)10 000 000
3RA2120-4BA26-0AP6 — Protection & Tripping
ParameterValue
Trip classCLASS 10
Short-circuit protectionYes
Rated short-circuit current at 400 V (IEC 60947-4-1)153 000 A
Overload release setting range (current)14 ... 20 A
Overload release typethermal (bimetallic)
Short-circuit trip typemagnetic
Duty / utilization type (IEC 60947-6-2)2
3RA2120-4BA26-0AP6 — Contacts & Control
ParameterValue
Rated value690 V
Rated voltage range at 50 Hz176 ... 242 V
Auxiliary contacts, NO1
Auxiliary contacts, NC1
Auxiliary switch extensionYes
Switching contact typeelectromechanical
3RA2120-4BA26-0AP6 — Mechanical & Connection
ParameterValue
Main circuit connection typescrew-type terminals
Main contact conductor range (AWG)2x (16 ... 12), 2x (14 ... 8)
Mounting / fastening methodSnap-mounted to DIN rail or screw-mounted with additional push-in lug
Mounting positionvertical
Width45 mm
Height193.1 mm
Depth97.1 mm
3RA2120-4BA26-0AP6 — Environmental
ParameterValue
Operating temperature range-20 ... +60 °C
Storage temperature range-50 ... +80 °C
Transport temperature range-55 ... +80 °C
Pollution degree3
Shock resistance (IEC 60068-2-27)6g / 11 ms

Product details

What this SIRIUS 3RA2 starter delivers at the panel

The 3RA2120-4BA26-0AP6 is a non-fused direct starter from the Siemens SIRIUS 3RA2 family, Size S0, combining a 3RT2026-1AP60 contactor and a thermal bimetallic overload relay in one assembly.

Mounting and panel fit — DIN rail or screw

Clearance requirements: 30 mm upwards, 10 mm forwards, 10 mm downwards, 9 mm at the side — budget these into the panel layout for airflow and wiring access. Main contact wire range accepts 1 to 10 mm² stranded, or 2 × (2.5 to 6 mm²) — enough for the full rated current without parallel runs.

Lifecycle and sourcing — active, quoted to order

The supplied link module 3RA2921-1AA00 and contactor 3RT2026-1AP60 are standard SIRIUS components, so replacement parts and spares are available through the same supply chain.

MPN
3RA2120-4BA26-0AP6