The Emerson/Artesyn/Astec LPS355-CEF is a 350 W chassis-mount power supply engineered for industrial, commercial, and medical equipment requiring reliable DC conversion from wide-range AC or DC inputs. This single-output unit delivers 24 V DC at up to 14.6 A (convection cooling) or 16 A peak, with adjustable output from 24 V to 48 V DC. Active power factor correction, remote sense, power-fail signaling, remote inhibit control, and single-wire current sharing enable flexible system integration and redundant configurations.
## Technical Specifications
**Input & Output**
• Input: 85–264 VAC or 120–300 VDC, 47–63 Hz (AC)
• Output: 24 V DC adjustable to 48 V DC, 350 W max
• Maximum load (convection): 14.6 A; peak: 16 A
• Auxiliary output: +5 V @ 100 mA (SK5)
• Ripple P/P: 240 mV
• Efficiency: 75%
**Mechanical & Environmental**
• Dimensions: 5″ × 9″
• Weight: 3.6 lb (1.64 kg)
• Cooling: End-mounted fan (optional CF cover); requires 30 CFM forced air if fan not used
• Operating temperature: 0–70 °C with 2.5% per °C derating above 50 °C
**Certifications**
VDE, UL Recognised, CSA Certified, NEMKO, BABT. Compliant with VDE 0805/EN60950 (IEC950), UL1950, CSA 22.2-234 level 5, EN 60950, EN61000-3-2 (EMC).
## Key Features
• Active power factor correction reduces input harmonic distortion
• Remote sense compensates for voltage drops across distribution wiring
• Power-fail output signals imminent AC loss for controlled shutdown
• Remote inhibit with OVP latch reset enables soft-start and protection management
• Single-wire current sharing simplifies parallel redundant topologies
• Wide input voltage acceptance (AC or DC) supports global and isolated power sources
## Typical Applications
Industrial process control, medical instrumentation, commercial telecom equipment, rack-mounted systems requiring intermediate 24 V distribution, and UPS/battery backup subsystems.
## Compatibility & Integration
Chassis-mount form factor with single 24 V output accommodates OEM integration into standard DIN-rail or custom panel enclosures. Auxiliary 5 V output supports logic and control circuits. Current-sharing capability enables N+1 redundancy without external diodes or control logic.
