Industrial Automation Power Solution – SIEMENS 6EP1333-2BA20 | SITOP Power Series
The SIEMENS 6EP1333-2BA20 is a high-reliability stabilized DC power supply from the SITOP Power series, delivering 24V DC / 5A (120W) output for demanding industrial control environments. Engineered for continuous-duty operation, it is the preferred choice of automation engineers specifying stable, noise-free DC power for PLC racks, sensor networks, and distributed I/O systems.
Where This Product Is Used
The 6EP1333-2BA20 is deployed across a wide range of industrial sectors and control architectures:
- PLC Control Panels – Powers SIMATIC S7-300/S7-400 CPU racks and expansion modules requiring a clean 24V DC bus.
- Machine Tool Automation – Supplies CNC controllers, servo amplifier logic circuits, and HMI panels on machining centers and lathes.
- Conveyor & Material Handling – Feeds distributed I/O nodes, proximity sensors, and solenoid valve banks along conveyor lines.
- Process & Chemical Plants – Provides stable 24V DC to field transmitters, positioners, and safety relay modules in continuous-process environments.
- Building Automation (BAS) – Powers BACnet/Modbus gateway devices, access control panels, and HVAC actuator controllers.
- Water & Wastewater Treatment – Supplies SCADA RTUs, level sensors, and pump control logic in wet, corrosive environments.
- Automotive Assembly Lines – Feeds robot controller I/O cards and vision system lighting controllers requiring ripple-free DC.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 6EP1333-2BA20 |
| Brand / Series | SIEMENS / SITOP Power |
| Input Voltage | AC 120/230V (wide-range), 50/60 Hz |
| Output Voltage | 24V DC (adjustable 22.8–26.4V) |
| Output Current | 5A continuous |
| Output Power | 120W |
| Efficiency | ≥ 87% |
| Ripple & Noise | < 50mV peak-to-peak |
| Mounting | DIN rail (EN 60715 TH35) |
| Protection Class | IP20 |
| Operating Temperature | -25°C to +70°C |
| Certifications | CE, UL, cUL, GL, ATEX Zone 2 |
| Dimensions (W×H×D) | 55 × 125 × 120 mm |
| Weight | Approx. 0.65 kg |
| MTBF | > 500,000 hours |
Why Engineers Specify This Model
- Wide-Range AC Input – Accepts 120V and 230V AC without manual switching, simplifying global machine deployment.
- Active Power Factor Correction (PFC) – Reduces harmonic distortion on the mains supply, protecting upstream infrastructure.
- Parallel Operation Ready – Two units can be paralleled for redundancy or increased current capacity without additional hardware.
- Integrated Diagnostics – Green LED status indicator and potential-free signaling contact for remote monitoring via PLC digital input.
- Compact DIN Rail Footprint – 55mm width fits standard control cabinet layouts without sacrificing output capacity.
- ATEX Zone 2 Approval – Suitable for installation in areas with occasional explosive atmospheres (Group IIC).
Complete System Bill of Materials
Typical control panel BOM pairing the 6EP1333-2BA20 with complementary SIEMENS components:
- 6EP1333-2BA20 – 24V/5A SITOP power supply (this unit)
- 6ES7315-2EH14-0AB0 – SIMATIC S7-300 CPU 315-2 PN/DP
- 6ES7321-1BL00-0AA0 – SM 321 Digital Input Module (32×DI 24V DC)
- 6ES7322-1BL00-0AA0 – SM 322 Digital Output Module (32×DO 24V DC)
- 6GK7343-1EX30-0XE0 – CP 343-1 Ethernet Communication Processor
- 6EP1961-2BA11 – SITOP UPS Module (battery backup for 24V bus)
- 3RT2015-1BB41 – SIRIUS 3RT Contactor (24V DC coil)
Compliance & Industry Standards
- IEC 61131-2 – Programmable controllers: equipment requirements and tests
- EN 60950-1 / IEC 62368-1 – Safety of information technology equipment
- EN 61000-6-2 – EMC immunity for industrial environments
- EN 61000-6-4 – EMC emission standard for industrial environments
- UL 508 – Industrial control equipment (UL/cUL listed)
- ATEX Directive 2014/34/EU – Zone 2, Group IIC, Category 3G
- RoHS 2011/65/EU – Restriction of hazardous substances compliant
Quality Assurance & Sourcing
At Konmask.com, every SIEMENS 6EP1333-2BA20 unit is:
- Sourced from authorized distributors or verified surplus channels with full traceability documentation.
- Inspected for physical integrity, label authenticity, and firmware/hardware revision consistency.
- Tested for output voltage accuracy and ripple under load prior to dispatch.
- Shipped with anti-static packaging and humidity indicator cards for long-distance freight.
- Backed by our 12-month warranty against manufacturing defects.
How to Source This Part
Ready to order the SIEMENS 6EP1333-2BA20? Contact our industrial parts team:
- 📧 Email: support@konmask.com
- 📞 Phone/WhatsApp: +0086 19859288691
- 🌐 Online: Add to cart directly on this page
Provide your required quantity, delivery timeline, and destination country for a tailored quotation. Expedited shipping to EU, North America, Southeast Asia, and Middle East is available.
Application-Specific FAQ
Q: Can the 6EP1333-2BA20 power a SIMATIC S7-300 CPU directly?
A: Yes. The S7-300 CPU and its backplane require a 24V DC supply; the 6EP1333-2BA20 provides clean, regulated 24V DC at up to 5A, sufficient for a CPU plus several I/O modules.
Q: Is this power supply suitable for outdoor cabinet installations?
A: The unit is rated IP20, designed for installation inside a sealed enclosure. For outdoor use, install it within an IP54 or higher rated cabinet.
Q: Can two units be paralleled for 10A output?
A: Yes. The 6EP1333-2BA20 supports parallel operation. Connect outputs in parallel and ensure both units share load equally using the output voltage trim potentiometer.
Q: What is the difference between 6EP1333-2BA20 and 6EP1333-3BA10?
A: The 3BA10 is the SITOP smart series with enhanced diagnostics and a wider output current range. The 2BA20 is the standard SITOP Power series — more cost-effective for applications not requiring advanced monitoring.
Q: Does Konmask provide a certificate of conformity (CoC)?
A: Yes. A CoC and inspection report are available upon request for all orders.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
