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Siemens 3RA2115-1BA16-2BB4 — Motor Starters

Siemens 3RA2115-1BA16-2BB4 SIRIUS Direct Starter, 2 A AC-3

MPN3RA2115-1BA16-2BB4
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Siemens SIRIUS 3RA2115-1BA16-2BB4 direct online starter, size S00, 2 A at 400 V AC-3, Class 10 thermal overload, screw terminals, 45 mm wide, snap-on DIN rail.

Siemens 3RA2115-1BA16-2BB4 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RA2115-1BA16-2BB4 — Identification
ParameterValue
Product designationDirect (on-line) starter
Main circuit poles3
BrandSIRIUS
Load feeder sizeS00
Product design / constructionfor standard rail or screw mounting
Circuit-breaker sizeS00
Included contactor (type)3RT2016-1BB42
Included circuit-breaker (type)3RV2011-1BA15
Included link module (type)3RA1921-1DA00
3RA2115-1BA16-2BB4 — Ratings & Performance
ParameterValue
Rated motor power at 400 V750 kW
Rated voltage at AC-3, max.690 V
Rated motor power at 460/480 V (hp)1 hp
Rated motor power at 575/600 V (hp)1.5 hp
Rated current at 480 V2 A
Rated current at 600 V2 A
Rated operating frequency50 ... 60 Hz
Rated impulse withstand voltage (Uimp)6 kV
Rated insulation voltage Ui (AC, pollution degree 3)690 V
3RA2115-1BA16-2BB4 — Protection & Tripping
ParameterValue
Trip classCLASS 10
Short-circuit protectionYes
Rated short-circuit current at 400 V (IEC 60947-4-1)150 000 A
Overload release setting range (current)1.4 ... 2 A
Overload release typethermal (bimetallic)
Short-circuit trip typemagnetic
Duty / utilization type (IEC 60947-6-2)2
3RA2115-1BA16-2BB4 — Contacts & Control
ParameterValue
Rated value24 ... 24 V
Control supply voltage typeDC
Auxiliary contacts, NO1
Auxiliary contacts, NC1
Auxiliary switch extensionYes
Switching contact typeelectromechanical
3RA2115-1BA16-2BB4 — Communication
ParameterValue
AS-Interface protocol supportNo
3RA2115-1BA16-2BB4 — Mechanical & Connection
ParameterValue
Mounting / fastening methodscrew and snap-on mounting onto 35 mm DIN rail
Mounting positionvertical
Width45 mm
Height167 mm
Depth97 mm
3RA2115-1BA16-2BB4 — Environmental
ParameterValue
Operating temperature range-20 ... +60 °C
Storage temperature range-50 ... +80 °C
Transport temperature range-50 ... +80 °C
Shock resistance (IEC 60068-2-27)6g / 11 ms

Product details

S00 direct starter — 45 mm wide, snap-on DIN rail

The 3RA2115-1BA16-2BB4: This is a Siemens SIRIUS size S00 direct online starter, combining a contactor and a thermal overload relay in one assembly. The unit ships with the contactor (3RT2016-1BB42) and link module (3RA1921-1DA00) pre-assembled. Main circuit connections use screw-type terminals, so no special tooling is needed for wiring.

2 A AC-3 at 400 V — motor switching up to 0.75 kW

The AC-3 rating covers starting and stopping of squirrel-cage motors under load — the most common application for a direct-on-line starter. The thermal overload release is bimetallic, Class 10 trip characteristic.

Frequently asked questions

What is the difference between 3RA2115-1BA16-2BB4 and a bare contactor like 3RT2016-1BB42?

The 3RA2115-1BA16-2BB4 is a pre-assembled direct starter that includes the 3RT2016-1BB42 contactor plus the 3RA1921-1DA00 link module and a thermal overload relay. A bare contactor lacks the overload protection and the mounting link — you would need to add those separately and wire them. This assembly saves panel space and wiring time.

MPN
3RA2115-1BA16-2BB4