The Schneider ASPRTU252 provides isolated 24 VDC power with integrated 12 VDC battery backup capability. This robust power supply delivers 2 Amps of continuous current for critical control system components. It ensures uninterrupted operation during main power disturbances or outages. The ASPRTU252 maintains stable output voltage regardless of input fluctuations or load changes. Field devices receive clean, regulated power for reliable long-term performance.
Technical Specifications and Physical Characteristics
Precise technical specifications enable proper integration of the Schneider ASPRTU252 into critical control applications. The module’s isolated design prevents ground loops and protects sensitive electronics.
| Specification | Details |
|---|---|
| Product Type | Isolated Power Supply with Battery Backup |
| Series | Schneider Electric Modicon Quantum |
| Primary Output Voltage | 24 VDC (Isolated) |
| Output Current | 2 Amps Continuous |
| Backup Input Voltage | 12 VDC (External Battery) |
| Input Voltage Range | 100 to 240 Vac (Auto-ranging, 50/60 Hz) |
| Input Current | 1.5 Amps maximum at full load |
| Isolation Voltage | 1500 Vdc between input and output |
| Output Ripple | Less than 50 mV peak-to-peak |
| Line Regulation | ±0.5% maximum |
| Load Regulation | ±1.0% maximum |
| Hold-up Time | 20 ms minimum at full load |
| Battery Charging Current | 0.5 Amps maximum |
| Module Width | 40 mm (single slot) |
| Height | 140 mm |
| Depth | 115 mm |
| Weight | 0.75 kg |
| Connection Type | Detachable Screw Terminal Block |
| Internal Energy Storage | High-capacity input and output capacitors |
| Protection Features | Overload Protection, Short Circuit Protection, Overvoltage Protection |
| LED Indicators | AC Power OK, DC Output OK, Battery Low |
| Operating Temperature | 0°C to 60°C |
Advanced Battery Backup Functionality
The ASPRTU252 includes intelligent battery management for seamless transition to backup power. It continuously charges an external 12 V battery when main AC power is present. The module automatically switches to battery power upon AC input failure. This transition occurs without any interruption to the connected load. The built-in charger maintains optimal battery condition without overcharging. A battery low indicator alerts operators when backup capacity runs low.
Isolation and Protection Features
Galvanic isolation between input and output eliminates ground loop problems in sensitive systems. The Schneider ASPRTU252 protects downstream equipment from power line transients and noise. Multiple protection circuits safeguard both the power supply and connected devices. Overload protection prevents damage during temporary overcurrent conditions. Short circuit protection immediately reduces output during fault events. Thermal shutdown activates automatically if internal temperatures exceed safe limits.
Seamless Integration with Control Systems
Engineers commonly use the ASPRTU252 to power critical Quantum modules and field devices. Its compact single-slot design maximizes available space in control panels. The detachable terminal block simplifies wiring and future module replacement. Similar to protection devices like the RMS TSG TZ C Static Trip unit, this power supply ensures system reliability. The 24 VDC output powers sensors, actuators, and communication interfaces effectively. Clean, regulated output extends the life of all connected electronic components.
Application Versatility in Critical Processes
The ASPRTU252 suits applications requiring uninterrupted power for control systems. Common uses include emergency shutdown systems, critical process controls, and remote terminal units. The battery backup ensures continued operation during brief power interruptions. This feature proves essential for data integrity and process safety requirements. The 2 Amp capacity supports multiple field devices from a single power source. Engineers appreciate the isolated output for mixing grounded and ungrounded devices safely.
Details
| Weight | 0.91 kg |
|---|---|
| Dimensions | 110 × 55 × 90 mm |

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