Introduction: Evolution of Industrial Power Supplies
Industrial automation has evolved from centralized relay systems to distributed control networks, and power supplies have had to keep pace. Early power supplies were bulky, inefficient, and offered little protection. Today, the Siemens 6EP1336-2BA10 SITOP PSU100S represents a modern solution—compact, efficient, and reliable. It provides a stabilized 24V DC output at 20A, ensuring that sensitive control electronics receive clean, regulated power even in demanding environments.
As machines become more intelligent, the demand for consistent power grows. Voltage sags or transients can cause unexpected downtime, which is costly. The 6EP1336-2BA10 addresses these challenges with a wide input range, electronic short-circuit protection, and a robust design. This power supply is engineered for the rigors of continuous industrial operation.
Key Features of the 6EP1336-2BA10
The 6EP1336-2BA10 is packed with features that enhance performance and safety. Its controlled, isolated DC output ensures stable voltage delivery. The unit operates with a 120/230V AC input, automatically selecting the correct range. This flexibility simplifies installation across different regions.
- Input voltage: 85...132V AC or 176...264V AC (automatic range selection)
- Output voltage: 24V DC, adjustable 24...28V via potentiometer
- Rated output current: 20A (24A up to +45°C, derating 5%/K above +60°C)
- Efficiency: 90% typical
- Short-circuit protection: electronic shutdown with automatic restart
- Galvanic isolation between input and output (SELV per EN 60950-1)
- IP20 protection class
One distinctive spec is the adjustable output voltage up to 28V, which allows users to compensate for voltage drops in long cable runs. This feature is particularly valuable in large installations where distance can affect performance.
Applications and Use Cases
The 6EP1336-2BA10 is suitable for a wide range of industrial applications. It is commonly used in control cabinets for PLCs, sensors, and actuators.
In addition, the power supply's marine approvals (DNV) make it suitable for shipboard applications. Its wide temperature range (0...70°C) allows installation in non-air-conditioned enclosures. The unit also supports parallel operation (up to 2 units) for increased power or redundancy, enhancing system availability.
Installation and Setup
Mounting the 6EP1336-2BA10 is straightforward. It snaps onto a standard DIN rail (EN 60715 35x7.5/15). Ensure adequate spacing: 50mm top and bottom for ventilation. The unit is designed for natural convection, so do not block airflow.
Electrical connections are made via screw terminals. Input terminals accept 0.2...4 mm² wire, output terminals accept 0.2...4 mm², and auxiliary contacts accept 0.14...1.5 mm². Always follow local electrical codes and the manufacturer's manual for wiring.
Maintenance and Reliability
Regular inspection is recommended to ensure long-term reliability. Check for dust accumulation on the enclosure and verify that ventilation paths are clear. The unit has an MTBF of 1,778,916 hours at 40°C, indicating high reliability.
Because the power supply has no moving parts, maintenance is minimal. However, periodic verification of output voltage and LED status is prudent. The green LED indicates "24V OK," and the relay contact provides a remote signal for monitoring.
Compatibility and Integration
The 6EP1336-2BA10 is part of the Siemens SITOP family, ensuring compatibility with Siemens automation systems. It can be integrated with SIMATIC controllers and other 24V DC loads. The relay contact (rated 50V DC/0.3A) can be wired to a PLC input for status monitoring.
For larger power requirements, two units can be paralleled. This feature is useful for redundancy or to increase total output current. The unit also supports buffering modules for brief power interruptions.
Troubleshooting Common Issues
If the output voltage is absent, check the input fuse (T 10A, not accessible) and the input voltage. The unit has electronic short-circuit protection; after a fault, it will automatically restart. If the LED is off, verify that the input supply is within the specified range.
Overload conditions (150% of rated current for up to 5 seconds per minute) may cause the output to fold back. Ensure that the total load does not exceed the rated current, considering derating at high temperatures.
Product Support and Availability
The 6EP1336-2BA10 is available from AutoDCSTech. As a leading supplier of industrial automation parts, AutoDCSTech offers genuine Siemens products with fast shipping. Contact AutoDCSTech for current pricing and availability.
Availability & Condition at AutoDCSTech
| Part Number | 6EP1336-2BA10 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | Germany |
