Siemens SITOP BUF1200 Buffer Modules
Siemens SITOP BUF1200 Buffer Modules bridge short-term power failures in a range of seconds. These Siemens buffer modules can be used with the 24V power supply units of all SITOP product lines. BUF1200 Buffer Modules are equipped with maintenance-free capacitors as energy storage units and automatically take over the 24V power supply in case of a line voltage failure. The buffer module is connected in parallel to the output of an uninterruptible power supply (UPS). The connection to the power supply requires only two cables. SITOP DC UPS modules protect against extended power failures.
Features
- Only two cables are required to connect to the basic module
- Protects against brief power failures
- 300ms to 2.4s maximum buffer time depending on the load current
- The buffer time can be extended many times by connecting units in parallel
- Electrolytic capacitors are used for maintenance-free operation
- Diagnostic messages via LED
- Quick and simple rail mounting
- Simple commissioning using a push-in connection system
Applications
- Industrial automation
- Process control
- Infrastructure and machine protection
Specifications
- 24VDC rated supply voltage
- 20VDC to 30VDC input voltage
- 40A rated output current
- IP20 environmental protection
- EN 61000-6-2 interference immunity
- -40°C to +70°C operating temperature range with natural convection
Additional Resources
Published: 2025-04-09
| Updated: 2025-12-12