The Siemens SITOP PSU100S (6EP1336-2BA10) is a 480 W stabilised power supply for single-phase AC mains, delivering 24 V DC at 20 A (24 A derated to +45 °C). It takes 120/230 V AC input (85–132 / 176–264 V, auto-range, 50/60 Hz; also DC 110–300 V), gives adjustable 24–28 V output, a green 24 V OK LED plus relay contact, and DIN-rail mount (IP20, 115×145×150 mm, 2.4 kg, 90% efficiency). Current SITOP PSU100S model; new original, quoted per order, ships in 24h by DHL (3–7 days).
The SITOP PSU100S 6EP1336-2BA10 is Siemens’ 20 A / 480 W workhorse for central 24 V cabinet supplies, converting single-phase 120/230 V AC into a regulated, adjustable 24 V DC output. A 150 % power boost, permanent 120 % overload capacity and the DC o.k. contact let one unit power a complete machine reliably and monitored.
Key Facts
| Brand / family | Siemens SITOP PSU100S |
|---|---|
| Type | Stabilized 24 V DC power supply, single-phase |
| Input | 120 / 230 V AC, automatic range switching (85…132 / 170…264 V) |
| Output | 24 V DC / 20 A, 480 W, adjustable 24…28 V |
| Overload behaviour | 150 % extra power (30 A, 5 s/min); 120 % (24 A) permanent to +45 C |
| Efficiency / cooling | Approx. 90 %, natural convection |
| Signalling / parallel | DC o.k. signalling contact, parallel switching supported |
| Dimensions / weight | 115 x 145 x 150 mm, approx. 2.4 kg |
| Lifecycle | Active product (PM300) |
What Is the SITOP PSU100S 6EP1336-2BA10
The central 24 V supply for larger cabinets
With 480 W in a 115 mm wide housing, the PSU100S 20 A feeds a complete 24 V bus – PLC, distributed I/O, sensors, actuators and panel devices – from one DIN-rail unit. Screw terminals and side-by-side mounting without lateral clearance keep the cabinet layout compact.
Extra power when loads demand it
The supply delivers 150 % of rated current (30 A) for 5 s per minute to start heavy inrush loads, and carries 120 % (24 A) permanently up to +45 C, so it is sized to the running load rather than the starting peak.
Built into the SITOP add-on system
The output voltage is adjustable from 24 to 28 V to compensate line drops, units can be switched in parallel to raise power, and the DC o.k. signalling contact reports output health to the controller. Buffer, DC-UPS, redundancy and selectivity modules extend the 24 V system.
SITOP PSU100S 6EP1336-2BA10 – Technical Specifications
| Item | Specification |
|---|---|
| Input voltage | 1-phase AC 120 / 230 V, automatic range switching; 85…132 V / 170…264 V |
| Line frequency | 50 / 60 Hz |
| Rated input current | 7.5 A at 120 V / 3.5 A at 230 V |
| Mains buffering | > 20 ms (at 120 / 230 V) |
| Output voltage | 24 V DC, tolerance +/- 3 %, setting range 24…28 V DC |
| Rated output current | 20 A; 24 A permanently up to +45 C |
| Extra power | 30 A (150 %) for 5 s/min |
| Rated output power | 480 W |
| Residual ripple | Max 150 mVpp |
| Short-circuit protection | Electronic, with automatic restart |
| Efficiency / cooling | Approx. 90 %, natural convection |
| Signalling | DC o.k. signalling contact, green LED |
| Parallel switching | Yes, to increase output power |
| Ambient temperature | -25 to +70 C (derating from +60 C, 5 %/K) |
| Dimensions / net weight | 115 x 145 x 150 mm; approx. 2.4 kg |
| GTIN / EAN | 4025515152897 |
| Lifecycle | Active product (PM300) |
Data per the Siemens catalogue entry and product documentation; confirm the current data sheet before mounting the module or sizing the 24 V load.
Key Features of the PSU100S 20 A
One unit powers the whole cabinet
480 W from a 115 mm wide housing covers the 24 V demand of medium-sized machines, replacing arrays of smaller supplies and their wiring.
Ready for global single-phase grids
Automatic range switching accepts 120 V and 230 V networks (85…132 / 170…264 V) at 50/60 Hz and bridges mains dips for more than 20 ms – no tap setting on site.
Expandable in the SITOP system
Parallel switching raises output power, the DC o.k. contact reports status to the PLC, and buffer, DC-UPS, redundancy or selectivity modules add ride-through and selectivity around the supply.
20 A and High-Power SITOP Supplies at a Glance
| Series / input | Output | Article number | Remark |
|---|---|---|---|
| PSU100S, 1-phase 120/230 V AC | 24 V DC / 20 A (480 W) | 6EP1336-2BA10 | This unit |
| PSU300S, 3-phase 400-500 V AC | 24 V DC / 20 A | 6EP1436-2BA10 | Three-phase counterpart |
| PSU300S, 3-phase 400-500 V AC | 24 V DC / 5 A, 10 A, 40 A | 6EP1433-2BA20, 6EP1434-2BA20, 6EP1437-2BA20 | Same family, other ratings |
| SITOP modular, 1-phase 120/230-500 V AC | 24 V DC / 20 A | 6EP1336-3BA00 | Modular predecessor line |
| PSU8200, wide AC/DC input | 24 V DC / 20 A | 6EP1336-3BA10 | Successor of the modular 20 A |
| SITOP modular, 3-phase 400-500 V AC | 24 V DC / 20 A, 40 A | 6EP1436-3BA00, 6EP1437-3BA00 | Legacy three-phase modular |
Choose the PSU100S for single-phase cabinets and the PSU300S where a 400-500 V three-phase bus exists; the modular and PSU8200 lines cover wide-input and legacy retrofit duties.
Compatibility and How to Order
The PSU100S 20 A mounts on a 35 mm DIN rail inside the control cabinet and is engineered as part of the SITOP system, combining with buffer, DC-UPS, redundancy and selectivity modules. For 400-500 V three-phase cabinets the PSU300S 6EP1436-2BA10 is the matching 20 A unit. Siemens lists the PSU100S as an active product (PM300).
- Email sales@can-electric.com with the order number, quantity, delivery country, and whether the power module equips a new cabinet or replaces a failed unit.
- State the condition you need — new, new-surplus or refurbished is written on the quote, never implied.
- Prices are USD and ships go out from Hong Kong by DHL; availability is confirmed per order rather than taken from a catalogue status.
Frequently Asked Questions
What is the SITOP PSU100S 6EP1336-2BA10 used for?
It is a stabilized single-phase power supply delivering 24 V DC / 20 A (480 W), typically used as the central 24 V supply for PLC cabinets, distributed I/O, sensors and actuators in machine and plant building.
How much current can it deliver?
20 A rated, 24 A (120 %) permanently at ambient temperatures up to +45 C, and 30 A (150 %) as extra power for 5 s per minute to start heavy loads.
What input voltage does it accept?
Single-phase AC with automatic range switching – 120 V (85…132 V) or 230 V (170…264 V) at 50/60 Hz, drawing 7.5 A or 3.5 A at rated load.
Can the output voltage be adjusted?
Yes – the setting range is 24 to 28 V DC, set with a potentiometer to compensate voltage drops on long 24 V lines.
Can two units be run in parallel?
Yes – the PSU100S supports parallel switching to increase the available output power.
How does it behave on a short circuit?
Electronic short-circuit protection with automatic restart limits the fault current and resumes operation once the fault is cleared.
What ambient temperature is allowed?
-25 to +70 C with natural convection; from +60 C upward the unit is derated by 5 % per kelvin.
Is there a three-phase counterpart with the same output?
Yes – the SITOP PSU300S 6EP1436-2BA10 delivers 24 V DC / 20 A from a 400-500 V three-phase supply (340-550 V wide-range input).
Which add-on modules work with it?
The SITOP buffer, DC-UPS, redundancy and selectivity modules extend the supply, and the DC o.k. signalling contact reports output status to the controller.
Is the hardware genuine, and how do I get a quote?
Genuine Siemens hardware sourced through Siemens-authorized distribution partners; CAN Electric is an independent channel trader, not Siemens and not a factory-authorized distributor. Email sales@can-electric.com with quantity and delivery country.
Related Siemens HMI Products
6EP1334-3BA10SITOP PSU200M power supply, 24 V/10 A● On Request
6EP1334-3BA10-8AB0SITOP PSU200M 24 V/10 A, protective-coating version● On Request
6EP1334-7CA00SITOP PSU100P IP67 power supply, 24 V/8 A● On Request
6EP1334-7CA10SITOP PSU100P IP67 power supply, 24 V/8 A, M12 L-coded● On Request
6EP1336-1LB00SITOP PSU100L power supply, 24 V output● On Request
6EP1336-3BA00SITOP modular power supply, 24 V/20 A● On Request
6EP1336-3BA10SITOP PSU8200 power supply, 24 V/20 A, wide AC/DC input● On Request
6EP1337-3BA00SITOP modular power supply, 24 V/40 A● On Request
6EP1351-1SH03LOGO!POWER 15 V/1.9 A power supply● On Request
6EP1353-2BA00SITOP power flexi adjustable supply, 3-52 V/10 A● On Request
6EP1433-0AA00SITOP PSU300E slim three-phase supply, 24 V/5 A● On Request
6EP1433-2BA20SITOP PSU300S three-phase supply, 24 V/5 A● On Request
6EP1434-2BA10SITOP PSU300S three-phase supply, 24 V/10 A● On Request
6EP1434-2BA20SITOP PSU300S three-phase supply, 24 V/10 A● On Request
6EP1436-2BA10SITOP PSU300S three-phase supply, 24 V/20 A● On Request
6EP1436-3BA00SITOP modular three-phase supply, 24 V/20 A (legacy)● On Request
6EP1436-3BA00-8AA0SITOP modular three-phase 24 V/20 A, coating version● On Request
6EP1437-2BA20SITOP PSU300S three-phase supply, 24 V/40 A● On Request
6EP1437-3BA00SITOP modular three-phase supply, 24 V/40 A (legacy)● On Request
6ES7511-1AL03-0AB0SIMATIC S7-1500 CPU 1511-1 PN (station, Profinet)● On Request
CAN Electric is an independent channel trader. Genuine Siemens products are sourced through Siemens-authorized partners — we are not Siemens itself, and condition and delivery are confirmed on each quote. Lifecycle statements follow the Siemens product status at the time of writing.
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