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- Siemens 6ES7305-1BA80-0AA0 SIMATIC S7-300 PS 305 24 V DC Power Supply
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Product Specification
AMIKON INDUSTRIAL SUPPLY
Siemens 6ES7305-1BA80-0AA0
PRODUCT OVERVIEW
Regulated Power for SIMATIC S7-300
Designed for power-supply applications in the Siemens SIMATIC S7-300 range, the PS 305 provides regulated DC power for connected control equipment.
For sourcing enquiries, compare the installed unit's complete order number, supply arrangement, load requirements and mounting space before confirming a replacement.
LIFECYCLE INFORMATION
Siemens lists this product as discontinued effective 1 October 2023.
IDENTIFICATION PROFILE
▦
PRODUCT FAMILY
SIMATIC S7-300
⌁
PRODUCT TYPE
PS 305 DC Supply
ENGINEERING REFERENCE
Technical Specifications
Electrical ratings, protection features and installation data
RATED INPUT
24–110 V
DC supply
OUTPUT VOLTAGE
24 V
DC regulated
RATED CURRENT
2 A
Rated output
RATED POWER
48 W
Nominal output
01 / Electrical Performance
Permitted input voltage16.8–138 V DC
Output current range0–3 A*
Static output tolerance±3%
Efficiency at rated outputApprox. 75%
Residual ripple, peak-to-peak30 mV typical
150 mV maximum
Startup delayMax. 3 s
02 / Protection & Status
Short-circuit protectionElectronic shutdown; automatic restart
Output overvoltage protectionApprox. 30 V; automatic restart
Output indicatorGreen 24 V OK LED
Galvanic isolationPrimary / secondary
Degree of protectionIP20
03 / Mechanical & Installation
Dimensions (W × H × D)80 × 125 × 120 mm
WeightApprox. 0.57 kg
ConnectionScrew terminals
MountingS7 rail mounting
Required clearance50 mm above and below
04 / Environmental Conditions
Operating ambient temperature−25 to +70 °C
Operating coolingNatural convection
Transport temperature−40 to +85 °C
Storage temperature−40 to +85 °C
*The listed 3 A output capability is specified up to +60 °C when input voltage is above 24 V. Verify the applicable operating conditions before using this value for design or replacement.
Additional Electrical & Installation Data — expand for details
Input current at 24 V DC
2.4 A
Input current at 110 V DC
0.6 A
Maximum switch-on current
20 A at +25 °C
Input buffering at rated input
Minimum 10 ms
At rated output current
Internal input fuse
T 6.3 A / 250 V
Not accessible
Recommended input protection
From 10 A, characteristic C
Breaker suitable for DC
Input terminal conductors
0.5–2.5 mm²
Output terminal conductors
0.5–2.5 mm²
Typical power loss at rated output
16 W
Output voltage adjustment
Not adjustable
Parallel operation
Up to 2 units
For increased performance, subject to approved arrangement
Confirm the applicable manufacturer documentation and approved installation arrangement before wiring, protection selection or commissioning.
MAINTENANCE & TROUBLESHOOTING
Application & Failure Scenarios
Common symptoms that may prompt inspection of a DC power supply in an S7-300 installation.
01
Missing DC output
Check the incoming supply, output terminals and connected load.
02
24 V OK LED unlit
Inspect input conditions, wiring, loading and protective devices.
03
Unstable supply voltage
Investigate supply stability and connected equipment demand.
04
Unexpected shutdown
Check for input interruption, overload or short-circuit conditions.
These are troubleshooting scenarios, not a diagnosis of the unit. A supply-related symptom does not by itself establish that the power supply has failed.
Replacement verification checklist
✓ Exact order number and nameplate
✓ Input source and voltage range
✓ Connected load and current demand
✓ Rail mounting and clearance
✓ Wiring, protection and operating conditions
Do not assume another S7-300 supply is a direct substitute based on appearance or family name alone.
ABOUT AMIKON
Connecting You with the Right Industrial Components.
AMIKON supports industrial spare-part sourcing through model identification, quotation coordination and order communication. Share the exact part number and application details to help review availability and replacement requirements.
CONTACT AMIKON
Miya Zheng
Industrial Supply · Product Sourcing · Order Support
Send the model number, quantity and destination for a quotation.
ORDER SUPPORT
Delivery & Warranty
01 / Testing
Inspection and available functional testing are to be confirmed with the quotation.
02 / Packaging
Protective shipping packaging; product condition and packing details confirmed per order.
03 / DOA & Returns
Report suspected arrival damage promptly with photographs and order details. Obtain return authorization before shipping an item back.
04 / Warranty
The applicable warranty period, scope and exclusions must be confirmed in the quotation or order confirmation.
QUICK REFERENCE
Frequently Asked Questions
1. What are the rated input and output values?
The rated input is 24–110 V DC, and the rated output is 24 V DC at 2 A, corresponding to 48 W.
2. Is the product still in production?
Siemens lists it as discontinued effective 1 October 2023. Contact AMIKON to enquire about current sourcing availability and the condition of any offered unit.
3. What should be checked before replacing the installed supply?
Verify the full order number, incoming DC voltage, load demand, mounting arrangement and required clearances. Investigate the incoming supply and connected load before attributing a fault to the module.
4. What does the green 24 V OK indicator mean?
It is the 24 V output status indicator. If it is not illuminated, check the input source, wiring, load and protection conditions before deciding whether the unit needs replacement.
5. How can I request a quotation and confirm warranty terms?
Contact Miya Zheng at
sales@amikon.cn or WhatsApp +86 180 2077 6792. Include the part number, quantity and destination, and request confirmation of product condition, testing, availability and warranty terms.
AMIKON SOURCING DIRECTORY
Related Models
Additional catalogue references for sourcing enquiries. These part numbers are directory entries only and are not asserted to be compatible replacements.
Browse related catalogue references
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AMIKON Industrial Supply
Technical information is provided for product identification and sourcing reference. Verify the applicable manufacturer documentation before installation.
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