COSEL Enclosed AC/DC Power Supplies
Reliable Power Solutions for Industrial and Medical Systems
Robust Enclosed Power for Demanding Applications
FORTEC Switzerland offers COSEL's enclosed AC/DC power supplies, built for applications that demand high reliability, electrical safety, and long-term availability. Housed in rugged metal enclosures, they are suited to a wide range of industrial, medical, and infrastructure systems where protection, stability, and regulatory compliance are essential.
With decades of experience in power electronics, COSEL continues to expand this portfolio with new series that combine higher efficiency, greater power density, and broader certification coverage - from compact medical-grade units to multi-kilowatt, three-phase platforms for the most demanding industrial systems.
Designed for Industrial and Medical Environments
COSEL enclosed AC/DC power supplies support diverse applications, including:
- Industrial automation and machinery
- Medical electrical equipment
- Semiconductor and manufacturing systems
- Test and measurement platforms
- Infrastructure and transportation systems
Depending on the application, solutions are available with convection, forced-air, conduction, or water cooling, supporting both compact installations and high-power, mission-critical systems.
Key Characteristics
COSEL enclosed power supplies are engineered to meet stringent technical and regulatory requirements:
- Wide AC input voltage ranges for global use, including three-phase options for high-power series
- Output power options from 15 W up to more than 7,000 W
- Compliance with major international safety standards (including IEC 62368-1 and IEC 60601-1 for medical applications)
- Medical isolation up to 2×MOPP for BF-rated, patient-connected equipment
- Options for redundancy, parallel operation, and remote monitoring/control
- Military and defence-compliant models (MIL-STD-810H, MIL-STD-461, MIL-STD-1399-300)
- Long product lifecycles, high manufacturing quality, and warranties of up to five years
Product Series Overview
PCA SERIES
A high-power 1U enclosed power supply delivering 300 W to 1680 W, with output voltages from 5 V to 48 V. Built for demanding industrial and medical systems, it offers 2×MOPP isolation for medical use, constant-current operation, and parallel/redundant configuration. Five-year warranty; EN and UL approved.
AME SERIES
A configurable AC-DC platform covering 400 W to 1200 W with adjustable output voltages from 4 V to 57.6 V. Supports multiple output configurations from a single unit, carries industrial and medical approval (2×MOPP), and offers a digital communication function on selected 240 W modules. Five-year warranty; EN and UL approved.
ECDA SERIES (Powerbox)
A conduction-cooled power supply engineered for extreme environments, rated 500 W to 1000 W at 12 V or 28 V output. Its sealed IP65 enclosure with conformal coating meets MIL-STD-810H vibration/shock and MIL-STD-461 EMC requirements as well as MIL-STD-1399-300, making it suitable for naval and defence platforms. Includes remote sense, remote on/off, and full protection (OCP, OVP, OTP, SCP).
FDA SERIES
A convection-cooled AC-DC supply for a wide input range (AC 180–528 V), delivering 50 W to 201.6 W at 24 V, with chassis or DIN rail mounting. A recent addition to the portfolio for applications exposed to significant line-voltage variation.
PDA SERIES
A cost-effective, basic-function enclosed AC-DC supply spanning 15 W to 648 W across six output voltages (5–48 V). Convection or forced-air cooled, with chassis or DIN rail mounting, five-year warranty, and EN/UL approval - a reliable entry point for standard industrial requirements.
OFI SERIES (Powerbox)
A single-output, conduction-cooled supply delivering 700 W or 1200 W at 12, 28, or 48 V. Built to MIL-STD-810H vibration and shock standards, with optional active ORing circuitry available for redundant system configurations.
HCA SERIES
A high-power, fanless (conduction/water-cooled) three-phase supply delivering up to 3510 W at 48 V or 65 V. Its ultra-low 65 mm profile meets 1.5U height and supports parallel or N+1 redundant operation, with a built-in 12 V auxiliary output, alarms, and remote on/off - suited to demanding high-power industrial systems.
WMA SERIES
A compact, low-profile medical-grade supply (35 W to 100 W) certified to ANSI/AAMI ES60601-1 and EN60601-1 (3rd edition) with 2×MOPP isolation and 4 kV insulation. An economical, space-saving option for medical electrical equipment.
UMCS SERIES
An ultra-compact supply with medical isolation (30 W to 60 W), featuring 2×MOPP, 4 kV isolation, Class II construction, low leakage current, and suitability for BF applications - designed for cost-sensitive medical equipment.
OFD SERIES (Powerbox)
A conduction-cooled supply with configurable outputs (12, 28, 48, or 65 V), built to MIL-STD-810H and MIL-STD-461 CE-102 as well as MIL-STD-1399-300. Features active output ORing (28/48 Vdc), parallel/redundant operation with active current sharing, and widely adjustable voltage and current - for mission-critical defence and marine systems.
A front-end power supply delivering 2000 W to 3510 W at 48 or 65 V, in an ultra-low 41 mm (1U) profile. Complies with SEMI F47, supports parallel/N+1 redundant operation, and includes built-in ORing MOSFETs, alarms, and a 12 V/1 A auxiliary output - engineered for semiconductor and factory-automation equipment.
AEA SERIES
A single-output supply with triple peak-current capability, covering 600 W to 2400 W at 240-48 V. Offers 2×MOPP medical isolation (suitable for BF applications), OVC III compliance (certification pending), and SEMI F47 conformity - combining high efficiency with a low-profile design for medical and industrial systems.
FETA SERIES
A high-power 1U front-end supply spanning 1980 W to 7488 W at 36, 48, or 144 V, reaching up to 92.5% efficiency. Supports parallel/redundant operation and adjustable output down to 0 V, with a three-year warranty and EN/UL approval - built for demanding front-end power architectures.
GHA SERIES
A compact 3×5-inch platform serving both medical and industrial markets, from 300 W to 700 W with 2×MOPP isolation. Offers conduction cooling (up to 400 W), 5 V/12 V auxiliary outputs, remote on/off, and alarm signalling, backed by a five-year warranty.
PJA SERIES
A cost-effective, basic-function AC-DC supply from 100.5 W to 1536 W across six output voltages (5-48 V). Convection or forced-air cooled, with parallel/redundant operation support and a wide range of options - chassis or DIN rail mountable, five-year warranty.
DBD SERIES (Powerbox)
A military and defence-compliant, conduction-cooled supply for 50 W to 150 W across a wide voltage selection (2-48 V). Accepts universal AC input plus an additional DC input, includes low inrush-current limiting, and offers optional IP65 sealing for harsh environments.
PJMA SERIES
A medical-grade supply (2×MOPP, 4 kV isolation) covering 300 W to 1500 W at 12-48 V, forced-air cooled. Includes a harmonic attenuator compliant with IEC 61000-3-2 Class A, a wide operating temperature range, and low no-load power consumption - an economical choice for medical and industrial equipment.
Other AC-DC Formats in COSEL's Portfolio
Beyond enclosed chassis-mount units, COSEL's AC-DC range also includes DIN rail, PCB-mount, through-hole, and 19-inch plug-in formats, giving system designers a consistent power platform across different mechanical architectures:
UMPS SERIES
An economical PCB-mount supply (30 W to 60 W) designed for medical electric equipment. Features 2×MOPP medical isolation, 4 kV insulation, Class II construction, low leakage current, and suitability for BF applications.
KH SERIES
A full-function DIN rail power supply (25 W to 480 W) with an ultra-slim housing and 150% peak-power capability. Supports remote on/off control, accepts both AC and DC input, and carries a five-year warranty with EN and UL approval.
VP SERIES (Eplax)
A 19-inch plug-in supply offering single, dual, or triple outputs from 40 W to 150 W. Covers a wide input voltage range and multiple output voltages, with over-voltage protection and Vero standard pinning for rack-based systems.
DPF SERIES
A PFC front-end power module delivering 1000 W to 1500 W at 360 V, designed for parallel operation and pairing with COSEL's DBS and DHS series. Includes auxiliary voltage and an IOG signal output. Requires external circuit and thermal design; five-year warranty, EN and UL approved.
KR SERIES
A DIN rail redundancy module in an ultra-slim housing, designed to pair with the KH and KL series. Provides DC-OK and Balance-OK status indicators, backed by a five-year warranty and EN/UL approval.
TUHS SERIES
An ultra-compact through-hole AC-DC supply (3 W to 25 W) rated for an expected service life of up to 30 years and an operating range of -40 °C to +85 °C. Offers flexible hold-up time control, accepts AC or DC input, and carries a five-year warranty with EN and UL approval.
PK SERIES (Eplax)
A 19-inch plug-in supply with single, dual, or triple outputs from 30 W to 120 W, for nominal 115 V or 230 V AC input. Offers multiple output voltages, over-voltage protection, and Vero standard pinning.
EC SERIES (Eplax)
A cost-effective 19-inch plug-in supply delivering 50 W with single or triple outputs. Covers a wide input voltage range, includes over-voltage protection and a standard power-fail signal, with Vero standard pinning.
WDA SERIES
A DIN rail (35 mm) power supply delivering 30 W to 120 W across four output voltages. Features a wide operating temperature range, built-in overcurrent and overvoltage protection, universal AC input, and low no-load power consumption.
KL SERIES
A basic-function DIN rail power supply (120 W to 240 W) at 24 V or 48 V, in an ultra-slim, cost-effective housing. Includes a DC-OK status function and a five-year warranty with EN and UL approval.
TUNS SERIES
An AC-DC power module with built-in PFC, delivering 50 W to 1204 W across five output voltages. Operates from -40 °C to +100 °C, supports 500 W peak current with parallel options up to 700 W or 1200 W. Requires external circuit and thermal design; five-year warranty, EN and UL approved (TUNS50/100 models: NRND).
As an authorized COSEL and Powerbox partner, FORTEC Switzerland offers the complete range of enclosed AC/DC power supplies presented on this page, and supports you from technical consultation to project-specific configuration and delivery.