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    Apter Power supports 3RK1903-0BA00 with quotations, product manuals, module selection, and system matching.

3RK1903-0BA00

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Siemens 3RK1903-0BA00 is a 24 V DC ET 200S PM-D power module that supplies and monitors the control-potential group for SIRIUS motor starters.
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Technical specifications for 3RK1903-0BA00

  • Manufacturer:
    Siemens
  • Part Number:
    3RK1903-0BA00
  • Product Family:
    Siemens Drives & Motion Control
  • Product Type:
    ET 200S PM-D 24 V DC Power Module
  • Stock:
    1
  • Permissible Supply Range:
    20.4 to 28.8 V DC
  • Mounting Position:
    Vertical or horizontal
  • Mounting Method:
    Plugs onto matching terminal module
  • Protection Rating:
    IP20
  • Shock Resistance:
    5 g for 11 ms
  • Vibration Resistance:
    2 g
  • EMC Environment:
    CISPR 11 industrial Class A
  • Surge Immunity Conductor to Earth:
    2 kV
  • Surge Immunity Conductor to Conductor:
    1 kV
  • Maximum Installation Altitude:
    2000 m
  • Operating Temperature:
    0 to +60 °C
  • Storage and Transport Temperature:
    -40 to +70 °C
  • Relative Humidity:
    5 to 95%
  • Proof-Test / Service Interval:
    20 years
  • Weight:
    0.1168 lbs (0.053 kg)
  • Estimated shipping dimensions:
    15x196.5x95mm
  • Tariff Code:
    85389091
  • 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 Control Potential Plug-In Assembly Mounting Environment Disturbance Limits

Features:

  • Establishes a 24 V DC control-potential group for ET 200S motor starters.
  • Plugs onto a matched PM-D terminal module while field wiring stays on the base.
  • Operates in vertical or horizontal stations within the documented environmental limits.
The module converts a correctly wired 24 V DC infeed into the control-potential distribution used by the starter group.

Its removable electronics and fixed terminal base divide serviceable functions from permanent conductors.

Supply range, surge immunity and mechanical environment determine whether the PM-D can maintain the control group.

The Siemens 3RK1903-0BA00 ET 200S PM-D 24 V DC Power Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 3RK1903-0BA00 ET 200S PM-D 24 V DC Power Module 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.

Feeding the motor-starter control group

  • Input range: The PM-D accepts 24 V DC only within the documented 20.4 to 28.8 V window.
  • Group source: Its output establishes control potential for the downstream starter positions.
  • Shared effect: A lost PM-D supply can affect multiple starters even when their individual commands are valid.
  • Trace order: Diagnosis begins at the infeed, continues through the terminal base and then checks the PM-D state.

Separating electronics from permanent terminations

  • Terminal base: The fixed PM-D terminal module holds the supply conductors.
  • Module seating: The power module plugs into the base contacts and locks into the station.
  • Exchange boundary: The electronics can be removed without releasing every field conductor.
  • Match requirement: Base and PM-D order-number family must agree before insertion.

Relating orientation to temperature and enclosure conditions

  • Two orientations: Vertical and horizontal mounting are both documented.
  • Thermal limit: The complete station must remain within the 0 to 60 °C operating range.
  • Altitude limit: Installation is restricted to the documented maximum of 2000 m.
  • Protection scope: IP20 applies to the correctly assembled module and does not replace cabinet protection.

Protecting the control group from mechanical and electrical stress

  • Shock: The assembly is rated for the documented 5 g, 11 ms shock condition.
  • Vibration: Continuous mechanical exposure remains within the published 2 g limit.
  • Surge path: Different surge values apply conductor-to-earth and conductor-to-conductor.
  • EMC setting: Industrial Class A operation requires the surrounding wiring and enclosure practices to preserve EMC behavior.
Description
Siemens 3RK1903-0BA00 is a 24 V DC PM-D power module for SIRIUS motor starters in a SIMATIC ET 200S station. It plugs onto its matched terminal module and establishes the control-potential group used by the downstream starter positions.

Supply voltage entering 3RK1903-0BA00 must remain between 20.4 and 28.8 V DC. The PM-D electronics monitor and distribute that control potential, while the terminal base retains the permanent field wiring beneath the removable module.

Both vertical and horizontal mounting are documented for 3RK1903-0BA00, but the operating-temperature and altitude limits still apply to the assembled station. IP20 finger protection depends on correct seating and the surrounding ET 200S construction.

Surge, vibration and shock limits define the electrical and mechanical environment for 3RK1903-0BA00. When starter control power is missing, troubleshooting follows the 24 V infeed, terminal-module contact and PM-D state before moving to the individual starter.
Alternative Names
PM-D 3RK1903-0BA00 3RK 1903-0BA00 Siemens 3RK19030BA00 3RK1903 0BA00 ET 200S PM-D 3RK1903-0BA00 3RK19030BA00 Siemens 3RK1903-0BA00 Power Module 3RK1903-OBA00
Technical notes
Install Siemens 3RK1903-0BA00 on the documented PM-D terminal module and keep its 24 V DC supply within 20.4 to 28.8 V.
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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.
What is powered by Siemens 3RK1903-0BA00 in an ET 200S starter station?
Siemens 3RK1903-0BA00 establishes the 24 V DC control-potential group used by the associated downstream motor starters.
What should be checked if several starters downstream of 3RK1903-0BA00 lose control power together?
Check the 3RK1903-0BA00 infeed voltage, PM-D terminal-base contacts and module seating before troubleshooting each starter separately.
Can Siemens 3RK1903-0BA00 be mounted horizontally?
Yes. Siemens 3RK1903-0BA00 permits horizontal or vertical mounting when the complete station remains inside the documented environmental limits.
Does IP20 on 3RK1903-0BA00 mean it can be installed without a cabinet?
No. The 3RK1903-0BA00 IP20 rating describes finger protection of the assembled module and does not replace the required installation enclosure.
Why must the terminal base be matched before replacing Siemens 3RK1903-0BA00?
Siemens 3RK1903-0BA00 depends on the correct PM-D terminal interface for its 24 V infeed and control-potential connections.
What supply window must remain present at 3RK1903-0BA00?
The 24 V DC supply at 3RK1903-0BA00 must stay within 20.4 to 28.8 V DC.