Product Overview
With an efficiency of 90% and an MTBF of over 1.5 million hours, the Siemens 6ES7307-1KA02-0AA0 SIMATIC PS307 regulated power supply delivers reliable 24V DC / 10A output for demanding industrial automation applications. This Industrial Automation Module from the Siemens 6ES7307-1KA02-0AA0 series ensures stable power for your S7-300 controllers.
Technical Specifications Breakdown
The Siemens 6ES7307-1KA02-0AA0 features automatic wide-range input selection (120/230 V AC) and precise output regulation. Key parameters include:
- Input: 1-phase AC, 85…132 V or 170…264 V (automatic selection)
- Output: 24V DC, 0…10 A, with total tolerance of 3%
- Ripple: max 50 mV (typical 15 mV)
- Efficiency: 90% at rated load
- Power loss: typical 27 W
- Overvoltage protection: shutdown below 28.8 V with automatic restart
- Short-circuit proof: electronic shutdown with auto restart
- Leakage current: max 3.5 mA (typical 0.6 mA)
- IP20 protection, 0.8 kg net weight
- Operating temperature: 0…60 °C with natural convection
Real-World Applications
In manufacturing lines where power interruptions cause costly downtime, the long buffering time of 20 ms at rated load (Vin=93/187 V) of the Siemens 6ES7307-1KA02-0AA0 ensures control systems ride through brief outages. For process automation using S7-300 racks, the 10 A capacity reliably powers multiple I/O modules. The high efficiency translates to lower energy bills over the equipment's lifetime.
Maintenance & Reliability
Designed for long service life, the Siemens 6ES7307-1KA02-0AA0 requires minimal maintenance. Its MTBF of 1,504,280 hours at 40°C means fewer replacements. The built-in overvoltage and short-circuit protection extends the life of downstream equipment. Routine inspection of input fuses (T 6.3 A/250 V) and output voltage accuracy is recommended every 12 months. The IP20 enclosure keeps dust out in clean industrial environments.
Selection Guide & Purchasing Advice
Before purchasing a replacement or spare for your S7-300 system, verify that mounting rails are S7-compatible (the 6ES7307-1KA02-0AA0 supports S7 rail mounting). For standard rails, use the optional mounting adapter (6EP1971-1BA00). Ensure your application's total DC load does not exceed 10 A. For hazardous areas, note the ATEX and IECEx approvals (Ex nA nC IIC T3 Gc). Contact a trusted supplier like PLC Source PRO (available at ubest101) for genuine Siemens 6ES7307-1KA02-0AA0 modules.