The NI PS-15 is a 120 W industrial power supply that delivers stable 24 VDC output for National Instruments control and measurement systems in demanding field environments. It accepts universal input voltage (100 VAC to 240 VAC), features toolless spring-clamp terminals, and mounts directly to DIN rail. The unit combines compact form factor with a 20% continuous power reserve—usable below 45°C ambient—and exceptional EMI immunity for reliable operation across industrial, instrumentation, and control applications.
Technical Specifications
Electrical Performance
• Output voltage: 24 VDC to 28 VDC (adjustable)
• Output current: 5 A
• Output power: 120 W
• Input voltage: 100 VAC to 240 VAC (auto-select)
• Efficiency: >90%
• Input rush current: Low
• Power reserves: 20% continuous utilization below 45°C ambient temperature
Environmental Ratings
• Operating temperature: –25°C to +60°C (full output power); –25°C to 70°C operational
• Output derating: 3 W/°C from 60°C to 70°C
• Storage temperature: –40°C to 85°C
• Relative humidity: 5% to 95% non-condensing
• EMI immunity: Extraordinary
Physical & Connectivity
• Dimensions: 32 mm × 124 mm × 117 mm
• Weight: 500 g
• Mounting: DIN rail (standard); wall, panel, and side-mount accessories available
• Output terminals: Four (two positive, two negative—internally paralleled)
• Input terminals: Three (Neutral, Line, Protective Earth)
• Terminal type: Toolless spring-clamp
– Key Features
• Universal input acceptance (100–240 VAC) eliminates regional power conditioning concerns
• Adjustable 24 VDC output (24–28 VDC range) accommodates load tolerance stacks
• Compact DIN rail footprint (32 mm width) suits panel-constrained installations
• Dual positive and negative outputs enable convenient multi-load distribution
• 20% continuous reserve supports transient load spikes at controlled ambient temperatures
– Typical Applications
Industrial control systems, instrumentation equipment, office automation, and communication infrastructure requiring stable, isolated 24 VDC power in enclosure-mounted installations.
– Compatibility & Integration
Designed to power NI CompactDAQ, CompactRIO, Single-Board Controllers, Smart Cameras, Touch Panel Computers, Compact FieldPoint systems, Single-Board RIO, and heavy accessory loads such as DC motor drives.
