Skip to main content
Siemens 3RA2115-1CD15-1BB4 — Motor Starters

Siemens 3RA2115-1CD15-1BB4 SIRIUS Motor Starter

MPN3RA2115-1CD15-1BB4

Siemens SIRIUS 3RA2115-1CD15-1BB4 non-fused motor starter, direct starter, size S00, 750 W at 400 V, Class 10, 24 V coil, for snapping onto 60 mm busbar systems.

StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
How we verify every order →

Specifications

Identification

3RA2115-1CD15-1BB4 — Identification
ParameterValue
Product designationnon-fused motor starter 3RA2
Main circuit poles3
BrandSIRIUS
Load feeder sizeS00
Product design / constructiondirect starter
Circuit-breaker sizeS00
Included contactor (type)3RT2015-1BB41
Included circuit-breaker (type)3RV2011-1CA15
Included link module (type)3RA1921-1DA00

Ratings & Performance

3RA2115-1CD15-1BB4 — Ratings & Performance
ParameterValue
Rated motor power at 400 V750 W
Operational current Ie, AC-3 at 400 V1.9 A
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 V2.15 A
Rated current at 600 V2.24 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)30 000 000

Protection & Tripping

3RA2115-1CD15-1BB4 — 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)1.8 ... 2.5 A
Overload release typethermal (bimetallic)
Short-circuit trip typemagnetic
Duty / utilization type (IEC 60947-6-2)2

Contacts & Control

3RA2115-1CD15-1BB4 — Contacts & Control
ParameterValue
Rated value24 V
Auxiliary contacts, NO2
Auxiliary contacts, NC1
Auxiliary switch extensionYes
Switching contact typeelectromechanical

Mechanical & Connection

3RA2115-1CD15-1BB4 — Mechanical & Connection
ParameterValue
Main circuit connection typescrew-type terminals
Main contact conductor range (AWG)2x (20 ... 16), only for contactor 2x (18 ... 14), 2x 12
Mounting / fastening methodfor snapping onto 60 mm busbar systems
Mounting positionvertical
Width45 mm
Height200 mm
Depth155.1 mm

Environmental

3RA2115-1CD15-1BB4 — 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

Motor protection and trip class

The 3RA2115-1CD15-1BB4: This SIRIUS non-fused motor starter is a direct starter in size S00, combining a contactor and a thermal bimetallic overload relay in one unit. At 400 V it is rated for 750 W (about 1 hp) motor output; at 230 V it delivers 0.17 hp. The thermal overload is field-adjustable to match the motor nameplate FLA.

Mounting on 60 mm busbar systems

The starter snaps directly onto 60 mm busbar systems — no separate DIN rail required. Mounting position is vertical, with 20 mm clearance needed above and 10 mm below; no clearance needed forward or backward. Side clearance is 9 mm.

Supplied components and wiring

The unit ships with the contactor (3RT2015-1BB41), the link module (3RA1921-1DA00), and the busbar adapter (8US1251-5DS10) included — no separate ordering for the mating parts. Coil voltage is 24 V (50/60 Hz), which is the standard control voltage in most industrial panels. The operating frequency range is 50 to 60 Hz.

Frequently asked questions

What are the key ratings for 3RA2115-1CD15-1BB4?

It is a size S00 direct starter rated 750 W at 400 V, Class 10 trip, with a 24 V coil. It snaps onto 60 mm busbar systems and measures 45 mm wide by 200 mm high by 155.1 mm deep.

MPN
3RA2115-1CD15-1BB4