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3RT2015-2BB41

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Siemens 3RT2015-2BB41 is a SIRIUS 3RT2 power contactor that uses a 24 V DC coil to switch three-phase motor circuits up to 3 kW at 400 V.
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Technical specifications for 3RT2015-2BB41

  • Manufacturer:
    Siemens
  • Part Number:
    3RT2015-2BB41
  • Product Family:
    Siemens Drives & Motion Control
  • Product Type:
    SIRIUS 3RT2 S00 3-Pole Power Contactor
  • Stock:
    1
  • Auxiliary Contact:
    1 NO
  • Coil Voltage:
    24 V DC
  • Operational Current AC-3e/AC-3:
    7 A
  • Motor Power at 400 V AC-3:
    3 kW
  • Rated Insulation Voltage:
    690 V
  • Rated Impulse Withstand Voltage:
    6 kV
  • Control Circuit Connection:
    Spring-loaded terminals
  • Main Circuit Connection:
    Spring-loaded terminals
  • Operating Temperature:
    -25 to 60 °C
  • Maximum Installation Altitude:
    2000 m
  • Weight:
    0.6477 lbs (0.2938 kg)
  • Estimated shipping dimensions:
    7.50x5.10x8.30cm
  • Tariff Code:
    85364190
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Three-Phase Path Coil and Feedback Spring Wiring Starter Coordination

Features:

  • Switches three motor phases with one mechanically linked contact system.
  • Uses a 24 V DC coil and one integrated normally open auxiliary contact.
  • Applies a documented 7 A AC-3 rating to 3 kW motor duty at 400 V.
The coil circuit commands the armature while the three main poles carry the motor current.

The auxiliary contact follows the mechanism without carrying the motor load.

External overload and short-circuit protection complete the motor-starter branch around the contactor.

The Siemens 3RT2015-2BB41 SIRIUS 3RT2 S00 3-Pole Power Contactor may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 3RT2015-2BB41 SIRIUS 3RT2 S00 3-Pole Power Contactor Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

Following motor power through the three linked contacts

  • Line side: The incoming phases land on the three main line terminals.
  • Linked motion: One armature closes or opens all three main poles together.
  • Load side: The switched phases continue from the matching load terminals to the motor.
  • Isolation state: With the coil de-energized, each main pole interrupts its phase path.

Connecting the 24 V DC command and auxiliary status path

  • Coil input: The A1 and A2 circuit receives the documented 24 V DC control voltage.
  • Magnetic action: Coil current pulls the armature into the operated position.
  • Auxiliary state: The integrated NO contact closes with the mechanism for feedback or logic.
  • Release: Loss of coil voltage opens the main and auxiliary paths.

Using spring-loaded terminals without stressing the conductors

  • Conductor preparation: Strip length and conductor section follow the terminal data.
  • Main circuit: Each phase conductor is seated in its assigned line or load terminal.
  • Control circuit: Coil and auxiliary conductors remain separate from the power poles.
  • Retention check: A pull test confirms that every spring clamp has captured the conductor.

Combining switching with independent motor protection

  • Contactor role: The device starts and stops the motor on command.
  • Overload role: A coordinated overload relay detects sustained motor overcurrent.
  • Fault role: A fuse or breaker interrupts high short-circuit current.
  • Selection basis: Motor power, utilization category and protective-device coordination are checked together.
Description
Siemens 3RT2015-2BB41 is a SIRIUS 3RT2 size S00 power contactor for switching three-phase motor circuits. Its 24 V DC coil operates three linked main poles, while the integrated normally open auxiliary contact reports or participates in the control state.

When the coil of 3RT2015-2BB41 is energized, the armature closes all three power paths together so the motor receives its three phases. Removing the control voltage releases the mechanism and opens the same poles as one coordinated switching action.

The AC-3 rating of 3RT2015-2BB41 relates 7 A operational current to a 3 kW motor at 400 V. That duty defines the contact loading for motor starting and interruption rather than serving as a general rating for every voltage or utilization category.

Spring-loaded terminals on 3RT2015-2BB41 separate the main circuit, coil and auxiliary paths. The contactor performs commanded switching, while coordinated overload and short-circuit devices protect the motor branch outside the contactor.
Alternative Names
SIRIUS 3RT2015-2BB41 3RT2015 2BB41 Siemens 3RT20152BB41 3RT2 015-2BB41 3RT2015-2BB4I Siemens S00 3RT2015-2BB41 3RT2 015 2BB41 3RT2015-2BB41 Contactor
Technical notes
Match the 24 V DC coil of Siemens 3RT2015-2BB41 to the control supply and coordinate external overload and short-circuit protection.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Why does Siemens 3RT2015-2BB41 fail to pull in with 24 V present?
Measure the voltage directly across A1 and A2 of Siemens 3RT2015-2BB41 and check polarity, wiring and mechanical freedom.
Can 3RT2015-2BB41 switch a 3 kW motor at every supply voltage?
No. The 3 kW value for 3RT2015-2BB41 belongs to the documented 400 V AC-3 motor duty.
What protects the motor when Siemens 3RT2015-2BB41 is used?
Siemens 3RT2015-2BB41 performs switching; coordinated overload and short-circuit devices provide motor-branch protection.
How can 3RT2015-2BB41 report that it has operated?
Wire the integrated normally open auxiliary contact of 3RT2015-2BB41 into the required feedback or interlock circuit.
What should be checked when one phase is missing through Siemens 3RT2015-2BB41?
With power isolated, inspect the corresponding line terminal, main pole and load conductor of Siemens 3RT2015-2BB41.
Why can a conductor heat at a spring terminal on 3RT2015-2BB41?
Incorrect stripping, conductor size or incomplete insertion can raise resistance at a 3RT2015-2BB41 spring terminal.