Introduction to the 6ES7307-1BA01-0AA0
When your S7-300 control system demands a dependable power source, the 6ES7307-1BA01-0AA0 from Siemens provides a regulated 24V DC output at 2A. This SIMATIC PS307 power supply accepts 120/230V AC input with automatic range selection, making it a versatile choice for industrial panels worldwide.
Engineered for continuous operation, this unit features controlled, isolated DC voltage with a green LED for status indication. Its compact 40mm width fits neatly on standard S7 rails, saving valuable cabinet space.
Key Features and Technical Specifications
The 6ES7307-1BA01-0AA0 offers robust performance metrics that ensure stable operation:
- Input voltage: 85...132V AC or 170...264V AC (automatic range selection)
- Output voltage: 24V DC rated, adjustable: No
- Output current: 2A rated, range 0...2A
- Efficiency: 84%
- Power loss: typical 9W at rated output
- Line frequency: 47...63 Hz
- Buffering time: minimum 20ms at rated output current
- Inrush current limiting: maximum 22A at 25°C, duration 3ms
One distinctive spec is the overvoltage protection: an additional control loop shuts down at <28.8V and automatically restarts. This feature prevents damage to downstream components, reducing costly downtime.
Applications and Use Cases
Its compact design suits control cabinets where space is at a premium. Furthermore, the unit's marine approvals (DNV and LRS) make it suitable for shipboard automation, where reliability is critical.
In a typical scenario, the 6ES7307-1BA01-0AA0 powers sensors, actuators, and I/O modules, ensuring consistent 24V DC delivery. Its buffering capability (20ms) bridges brief power interruptions, preventing process upsets and costly product waste.
Installation and Setup
Mounting the unit is straightforward: it snaps onto an S7 rail (S7 rail mounting: Yes). Ensure proper spacing: 40mm top and bottom, 0mm left and right. Connect the input using screw terminals (L, N, PE) accepting 0.5...2.5 mm² wire, and output terminals (L+, M) with two screw terminals each for the same wire range.
For the feeder, Siemens recommends a miniature circuit breaker rated 3A characteristic C. This protects the input circuit without nuisance tripping during inrush.
Maintenance and Reliability
Routine care is minimal due to the unit's robust design. Periodically inspect the power supply for dust accumulation and ensure ventilation is not obstructed. The operating temperature range is 0...60°C with natural convection; avoid exceeding this to maintain performance.
Because the unit is short-circuit proof and features electronic shutdown with automatic restart, it recovers quickly from faults. This self-healing capability reduces downtime and the need for manual resets, contributing to lower operational costs.
Cost-Benefit Analysis: Why This Power Supply Saves Money
Investing in the 6ES7307-1BA01-0AA0 delivers long-term value through several cost-saving mechanisms:
- High efficiency (84%) reduces energy waste, lowering electricity bills over the product's lifespan.
- Electronic short-circuit protection with automatic restart minimizes the need for manual intervention, cutting maintenance labor costs.
- Wide input voltage range (85...264V AC) ensures stable operation even with fluctuating mains, preventing unexpected shutdowns that could halt production.
- With an MTBF of 2,320,078 hours at 40°C, this unit offers exceptional reliability, reducing replacement frequency and associated procurement costs.
Additionally, the unit's ability to parallel two units for increased power (number of parallel-switched equipment: 2) provides scalability without purchasing a larger supply, offering flexibility as your system grows.
Troubleshooting Common Issues
If the output voltage is absent, check the input supply and the miniature circuit breaker. The green LED indicates normal operation; if it is off, verify the input voltage is within the specified range (85...132V AC or 170...264V AC).
Should the unit enter short-circuit protection, remove the fault and the supply will automatically restart. For persistent issues, consult the Siemens manual or contact AutoDCSTech for technical support.
Product Support and Availability
The 6ES7307-1BA01-0AA0 is available from AutoDCSTech. Contact us for current pricing and lead times. Our team can assist with technical questions and ensure you receive genuine Siemens parts.
Availability & Condition at AutoDCSTech
| Part Number | 6ES7307-1BA01-0AA0 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | Germany |
