Emerson / Artesyn / Astec LPS355-CEF 350W Power Supply

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.