Technical Specifications
| Parameter Name | Value |
|---|---|
| Product Model | 6EP1437-3BA00 |
| Manufacturer | Siemens |
| Product Type | SITOP Modular Power Supply (PSU300S) |
| Input Voltage | 3-phase AC 320-550V (rated 400-500V, 50/60Hz) |
| Output Voltage | 24V DC (adjustable 24-28.8V) |
| Output Current | 40A |
| Output Power | 960W |
| Efficiency | Approx. 90% |
| Input Current | 2.2A at 400V |
| Inrush Current Limiting | ≤70A, <2.8A²s |
| Mains Buffering Time | 6ms at 400V |
| Required Circuit Breaker | 10-16A, characteristic C |
| Ripple Content | <100mVpp (ripple), <200mVpp (spikes) |
| Operating Temperature | 0°C to +70°C |
| Storage Temperature | -25°C to +85°C |
| Protection Rating | IP20 |
| Protection Features | SCP, OVP, OTP, OPP, OCP, BOP |
| Dimensions (W×H×D) | 240 × 125 × 125 mm |
| Weight | Approx. 3.5 kg |
| Mounting | DIN rail EN 60715 35×7.5/15 |
| Safety Standard | SELV per EN 60950, EN 50178 |
| Approvals | CE, UL/cUL, CSA |
Main Features and Advantages
Extra Power and Reliable Performance: The SIEMENS 6EP1437-3BA00 delivers exceptional power reserve with the “Extra Power” feature, providing up to 150% of rated current during startup to handle high inrush loads from motors and capacitive loads. This capability eliminates the need for oversizing the power supply for applications with intermittent peak demands. The module maintains 90% efficiency even at full load, significantly reducing energy costs and heat generation within the control cabinet . The output voltage is adjustable via a front-panel potentiometer in the range of 24-28.8V, allowing compensation for voltage drops across long supply lines .
Flexible Operation Modes: The SIEMENS 6EP1437-3BA00 features two selector switches that enhance application flexibility. Switch A adjusts the output characteristic curve to enable load sharing during parallel operation of multiple power supplies. Switch B configures the response to short-circuit conditions, allowing users to select between constant-current mode (1.15 × rated current) or shutdown mode that latches off after approximately 100ms of overload . This configurability makes the SIEMENS 6EP1437-3BA00 adaptable to different system protection strategies. The module also supports the connection of optional add-on modules, including buffer modules for extended mains buffering (6EP1961-3BA00) and signal modules for remote monitoring and switching (6EP1961-3BA10) .
Comprehensive Protection and Monitoring: The SIEMENS 6EP1437-3BA00 incorporates robust protection against overvoltage, overcurrent, short-circuit, overtemperature, and brown-out conditions . Front-panel LEDs provide clear visual status indication: a green LED confirms output voltage above 20.5V, a yellow LED indicates overload or output voltage below 20.5V in constant-current mode, and a red LED signals a latched shutdown . The power supply is built to meet stringent safety standards with SELV (Safety Extra Low Voltage) certification, ensuring safe operation in industrial environments. The SIEMENS 6EP1437-3BA00 is also designed for natural convection cooling, eliminating the reliability concerns associated with fan-cooled units.
