Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 39PSMNAN |
| Manufacturer | Siemens |
| Product Type | DIN-Rail Mounted Switching Power Supply Module |
| Series | SITOP PSU200N |
| Input Voltage Range | 120 – 230 V AC (single-phase, 50/60 Hz) |
| Output Voltage | 24 V DC |
| Output Current | 1.2 A |
| Rated Output Power | 30 W |
| Efficiency | Typically > 80% |
| Output Characteristics | Regulated, electrically isolated, short-circuit proof |
| Protection Features | Overload, short-circuit, overtemperature protection |
| Connection Type | Pluggable screw terminals (AC IN), pluggable spring-cage terminals (DC OUT) |
| Mounting | Standard 35 mm DIN rail (EN 60715) |
| Operating Temperature | -25 to +70 °C (with derating above 60°C) |
| Housing Material | Plastic (Polycarbonate) |
| Dimensions (WxHxD) | 35 x 125 x 115 mm |
| Safety Approvals | cULus Listed, CE, ATEX (for associated apparatus) |
Main Features and Advantages
The Siemens 39PSMNAN power supply module offers a compelling set of features centered on reliability, safety, and ease of use. Its core advantage is the proven SITOP quality, ensuring exceptionally high reliability and a long service life, which is critical for minimizing unplanned downtime in automation systems. The module provides a stabilized 24V DC output with low ripple and noise, offering “clean” power that is essential for the stable operation of sensitive electronic control components like PLC CPUs and analog modules. The integrated comprehensive protection suite is a significant benefit; it is designed to be short-circuit proof and includes automatic overload and overtemperature protection. In the event of a fault, the 39PSMNAN shuts down safely and restarts automatically once the fault condition is cleared, enhancing system resilience without requiring manual intervention.Installation and maintenance efficiency is another key strength. The compact, slim-line design of the Siemens 39PSMNAN saves valuable control cabinet space. Its DIN-rail mounting and innovative pluggable connection technology dramatically reduce wiring time. The AC input connections use a pluggable screw terminal block, while the DC output utilizes a pluggable spring-loaded terminal block, allowing for pre-wiring and quick module replacement. The module features a clear LED status indicator (green for “Power OK”) for instant visual diagnostics. Furthermore, its wide-range input (120-230V AC) eliminates the need for selecting a specific input voltage version, simplifying inventory and making the Siemens 39PSMNAN truly suitable for global deployment. The robust plastic housing provides a high degree of protection against accidental contact. This combination of dependable power quality, built-in safeguards, and installer-friendly design makes the Siemens 39PSMNAN a trusted and cost-effective choice for powering a vast range of industrial control loads.
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