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- Siemens 6EP4231-7HB00-0AX0 SITOP BUF1200 24V/40A 300ms Power Supply Buffer Module Siemens 6EP4231-7HB00-0AX0 SITOP BUF1200 24V/40A 300ms Power Supply Buffer Module
Siemens 6EP4231-7HB00-0AX0 SITOP BUF1200 24V/40A 300ms Power Supply Buffer Module
Siemens 6EP4231-7HB00-0AX0 SITOP BUF1200 24V/40A 300ms Power Supply Buffer Module
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- Description
The Siemens 6EP4231-7HB00-0AX0 is a SITOP BUF1200 buffer module that connects in parallel to the output of a 24 V DC power supply and bridges brief mains interruptions, holding a 40 A load for 300 ms or a 5 A load for up to 2.4 seconds. It accepts 20 ... 30 V DC at the input and needs no PROFINET or PSU8600 rack, so it can be added to any existing 24 V DC supply.
Technical Specifications
| SKU | 6EP4231-7HB00-0AX0 |
| Brand | Siemens |
| Series | SITOP BUF1200 |
| EAN | 4025515155256 |
| Type of Current Supply | 300 ms / 40 A |
| Rated Input Voltage | 24 V DC |
| Input Voltage, Supply Range | 24 ... 28 V DC |
| Input Voltage Range | 20 ... 30 V DC |
| Bridging Time at 40 A | 300 ms |
| Bridging Time at 5 A | up to 2.4 s |
| Output Current, Rated | 40 A |
| Galvanic Isolation, Input/Output | Yes |
| Display | Green LED, buffer standby exists |
| Protection Class IP | IP20 |
| Operating Resource Protection Class | Class III |
| UL/cULus Approval | cULus-Listed (UL 508, CSA C22.2 No. 107.1), File E197259 |
| Ambient Temperature, Operation | -40 ... +70 C |
| Connection, Input | Push-in terminals, 0.75 ... 16 mm2 |
| Connection, Output | Push-in terminals, 0.5 ... 6 mm2 |
| Enclosure W x H x D | 70 x 135 x 155 mm |
| Mounting | DIN rail EN 60715 35x7.5/15 |
| Net Weight | 1.2 kg |
Certifications & Standards
- CE
- EAC
- SEMI F47
- CB
- Shipbuilding
- EPD
Selection Notes
Because the module connects in parallel to an existing 24 V supply through push-in terminals and carries no PROFINET or system-bus dependency, it fits retrofits on any 24 V DC line, not only a Siemens PSU8600 rack. At the full 40 A rating it holds output for 300 ms; if the load drops to 5 A the same energy reserve stretches to about 2.4 seconds, and several BUF1200 units can be paralleled to multiply bridging time at higher loads. The -40 to +70 C operating range is wider than typical 24 V DIN-rail accessories, which matters for outdoor cabinets or unheated switchrooms.