Skip to main content
Log in
Siemens 6ES7305-1BA80-0AA0 — PLC I/O & Expansion Modules

Siemens 6ES7305-1BA80-0AA0 SITOP 24V/2A Power Supply

MPN6ES7305-1BA80-0AA0
NRND

Siemens SITOP power supply, 6ES7305-1BA80-0AA0, 24 V DC / 2 A, rail-mount for S7-300, end-of-life — now obtained via surplus channel.

$292.10 – $513.00Ref. price · indicative, final on quote
Siemens 6ES7305-1BA80-0AA0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

6ES7305-1BA80-0AA0 key specifications
ParameterValue
Fuse protection typeT 6.3 A/250 V (not accessible)
Type of electrical connectionscrew-type terminals
Type of the power supply networkDC voltage
Voltage curve at outputControlled, isolated DC voltage
At rated input voltage 242.4 A
At rated input voltage 1100.6 A
Output voltage at DC rated value24 V
On slow fluctuation of input voltage0.2 %
Relative overall tolerance of the voltage3 %
Product function output voltage adjustableNo
Behavior of the output voltage when switching onNo overshoot of Vout (soft start)
At rated output voltage for rated value of the output current typical16 W

All specifications

6ES7305-1BA80-0AA0 additional specifications
ParameterValue
Relative control precision of the output voltage with rapid fluctuation of the input voltage by +/- 15% typical0.3 %
At Short-Circuit during operation270 ms
Response value current limitation3.3 ... 3.9 A
Design of Short-Circuit protectionElectronic shutdown, automatic restart
On Short-Circuiting during the Start-Up270 ms
At Short-Circuit during operation typical9 A
Property of the output Short-Circuit proofYes
On Short-Circuiting during the Start-Up typical9 A
Current limitation of inrush current at 25 °C maximum20 A
Buffering time for rated value of the output current in the event of power failure minimum10 ms
Supplied active power typical48 W
Number of Parallel-Switched equipment resources for increasing the power2
Depth of the enclosure120 mm
Width of the enclosure80 mm
Height of the enclosure125 mm
Product feature of the enclosure housing can be lined upYes
MTBF at 40 °C964 506 h
CE markingYes
UL approvalYes; UL-Listed (UL 508), File E143289; CSA (CSA C22.2 No. 142)
CSA approvalYes; UL-Listed (UL 508), File E143289, CSA (CSA C22.2 No. 142)
EAC approvalYes
ULhazloc approvalNo
Environmental category according to IEC 60721Climate class 3K5, transient condensation permitted
Top50 mm
ATEXNo
Left0 mm
IECExNo
Right0 mm
At DC16.8 ... 138 V
Bottom50 mm
DNV GLNo
Typical5 ms
At inputL+1, M1, PE: 1 screw terminal each for 0.5 ... 2.5 mm² single-core/finely stranded
At outputL+, M: 3 screw terminals each for 0.5 ... 2.5 mm²
NEC class 2No
Rated range0 ... 3 A; 3 A up to +60°C at Vin > 24 V
Rated value2 A
In the feederRecommended miniature circuit breaker: from 10 A characteristic C, suitable for DC
During storage-40 ... +85 °C
FM registrationNo
During operation-25 ... +70 °C; with natural convection
During transport-40 ... +85 °C
MountingCan be mounted onto S7 rail
I2t value maximum5 A²·s
Other informationSpecifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified)
Galvanic isolationSafety extra low output voltage Vout according to EN 60950-1 and EN 50178, creepage distances and clearances > 5 mm
Protection class IPIP20
Bridging of equipmentYes
Efficiency in percent75 %
Mechanical accessoriesMounting adapter for standard mounting rail (6ES7390-6BA00-0AA0)
Response delay maximum3 s
For emitted interferenceEN 55011 Class A
Nippon kaiji kyokaiNo
For interference immunityEN 61000-6-2
cCSAus, class 1, division 2No
Load step 100 to 50% typical2.5 ms
Load step 50 to 100% typical2.5 ms
At output 1 at DC rated value24 V
Overvoltage overload capability154 V; 0.1 s
Design of input wide range inputYes
Lloyds register of shippingNo
On slow fluctuation of ohm loading0.4 %
Operating resource protection classClass I
Design of the overvoltage protectionAdditional control loop, shutdown at approx. 30 V, automatic restart
Display version for normal operationGreen LED for 24 V OK
French marine classification societyNo
Operating condition of the mains bufferingat Vin rated
Galvanic isolation between input and outputYes
American bureau of shipping europe ltd.No

Product details

This is the Siemens SITOP power supply 6ES7305-1BA80-0AA0 — a 24 V DC, 2 A output module that rides the S7-300 rail. It accepts a wide DC input from 16.8 to 138 V and delivers 2 A continuously, with a rated range of 0 to 3 A (derated above 60°C and when input exceeds 24 V). The unit is IP20, mounts with 50 mm clearance top and bottom, zero side clearance required — no ventilation gap left or right.

Lifecycle marked eol_hot: discontinued by Siemens, no new orders. Sourcing via surplus channel only.

Mounts on the S7-300 DIN rail via the standard SITOP adapter (order 6ES7390-6BA00-0AA0). Physical envelope: 80 mm wide, 125 mm high, 120 mm deep. Top and bottom clearances must be at least 50 mm for convection; side clearance can be zero. The output uses three screw terminals per pole (L+, M) for 0.5–2.5 mm² wire; input uses one screw terminal each for L+, M, and PE. A T 6.3 A/250 V internal fuse is not user-accessible. The recommended feeder breaker is a 10 A miniature circuit breaker, C characteristic, DC-rated.

Approvals cover industrial control panels in both North America and Europe: UL 508 listed (File E143289), CSA C22.2 No. 142, CE, and EAC. The output is galvanically isolated with safety extra-low voltage (SELV) per EN 60950-1 and EN 50178, creepage and clearance exceeding 5 mm. Operating temperature is –25 to +70 °C with natural convection; storage/transport range –40 to +85 °C. The unit is not ATEX, IECEx, or FM approved, and not NEC Class 2 rated.

Frequently asked questions

What are the mounting clearances?

The unit requires 50 mm clearance both above and below. No clearance is needed on the left or right sides. Dimensions: 80 mm wide, 125 mm high, 120 mm deep. Mounts on S7-300 rail with optional adapter 6ES7390-6BA00-0AA0.

MPN
6ES7305-1BA80-0AA0