Description
Martek Power PS2494-YE — Industrial AC-DC Switching Power Supply (800 W)
Product Overview
The Martek Power PS2494-YE is a rugged industrial AC-DC switching power supply designed and manufactured by Martek Power, Inc. (Torrance, California, USA, with manufacturing operations also in Lyon, France). Martek Power is today part of the Eaton power-conversion portfolio, together with Abbott Electronics and Sure Power. The company has more than 45 years of experience designing and building power-conversion products for military, aerospace, medical, railway, telecom, data storage, transportation, instrumentation and general industrial applications, and its production facilities are AS9100 / ISO 9001 certified.
The PS2494-YE accepts an ultra-wide AC input from 220 VAC to 660 VAC at 50/60 Hz, which covers standard industrial grids as well as marine, offshore and heavy-industrial networks operating at 380, 400, 440, 480 or 660 VAC. It delivers a regulated, high-power DC output (nameplate: 30–60 VDC at 12.8 A, 800 W) and is built in a rugged, fan-cooled metal enclosure for continuous-duty operation in harsh environments.
Parameter basis: The PS2494-YE is a legacy / configurable model for which Martek Power no longer publishes a public datasheet. The specifications in this document are taken from the physical nameplate of production units (Model PS2494-YE, REV. C1 / D2; P/N 2029303) and cross-checked against independent industrial distributors. Always verify against the actual unit’s nameplate before installation.
MarTek PS2494-YE
Applications (Specific Application Information)
The PS2494-YE is used wherever a high-voltage AC feed must be converted into a stable high-power DC bus for industrial or marine equipment. Typical applications include:
- AC-DC power conversion for industrial control panels and factory automation systems
- Powering the DC bus of PLC, DCS and safety-instrumentation systems in process plants
- Marine and offshore vessels — direct operation from 440 V / 660 V shipboard AC networks
- Oil and gas production facilities, refineries and offshore platforms
- Auxiliary DC systems in power plants and substations
- Railway and traction auxiliary power distribution
- Telecom and data infrastructure requiring conversion of high-voltage AC to a DC bus
- Replacement / spare part for failed OEM power supplies in installed legacy equipment
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Martek Power, Inc. (Eaton group) |
| Model | (REV. C1 / D2) |
| Part Number | 2029303 (MFR ref. -3837786) |
| Product Type | AC-DC switching power supply, forced-air cooled |
| Input Voltage | 220–660 VAC, 50/60 Hz |
| Input Current (nameplate) | 16.0 A |
| Output Voltage (nameplate) | 30–60 VDC (configured / adjustable range) |
| Output Current / Power | 12.8 A / 800 W |
| Protection | Overvoltage, overcurrent, short-circuit, overtemperature (typical Martek protection suite) |
| Compliance | CE, cRUus, RoHS |
| Country of Origin | Made in Mexico (nameplate) |
| Weight | ≈ 2.99 kg |
| Construction | Metal chassis, front cooling fan, terminal-block connections |
Main Features
- Ultra-wide input range (220–660 VAC, 50/60 Hz): one unit covers most industrial and marine grids, simplifying stocking and retrofit.
- High output power (800 W): ample headroom for demanding DC loads and multi-device buses.
- Regulated, configurable DC output (30–60 VDC): can be set to match the application voltage requirement.
- Forced-air cooling: fan-cooled design supports continuous operation inside enclosed panels.
- Comprehensive protection: overvoltage, overcurrent, short-circuit and overtemperature protection protect both the supply and the downstream equipment.
- Rugged metal enclosure: designed for harsh industrial and marine environments.
- Global approvals: CE, cRUus and RoHS compliant.
- Serviceable design: repairable / maintainable construction with replacement fan and fuses available.
- Proven engineering: backed by more than 45 years of Martek Power power-conversion experience.
Typical Application Scenarios
- Control-cabinet DC bus supply in factory automation and process plants where stable DC power is critical for PLC / DCS operation.
- Shipboard power conversion from 440 V / 660 VAC vessel mains to a regulated DC bus for marine automation equipment.
- Offshore oil and gas platforms supplying auxiliary DC loads in high-vibration, high-temperature environments.
- Power stations and substations providing backup / auxiliary DC power for protection and control circuits.
- Retrofit and replacement of failed or obsolete power supplies in legacy machines and control systems, restoring original performance with an OEM-quality unit.
Related and Recommended Models
| Model | Type / Note |
|---|---|
| PS2494-Y | Base model of the same family (without the -E suffix) |
| PS2459-Y | Similar Martek Power industrial AC-DC power supply |
| PS2194 | Higher-power Martek Power supply (e.g., 1200 W class) |
| PS-AT-200 | Martek Power AT-style power supply |
| COMPU35T | Martek Power UPS unit |
| CD101203 / CD101517 | Martek Power rack power-supply units |
| FC0983CI | Martek Power AC-DC converter |
When replacing or cross-selecting a model, verify the input range and the output voltage / current rating against your actual load. The family shares the same rugged construction, but output configurations vary between models and revisions.
Compatible Components and Accessories
- DC-rated output cabling and fuses / circuit breakers sized for the output rating (12.8 A / 800 W).
- Input EMI filter where electromagnetic-interference suppression is required (Martek Power also manufactures EMI filters).
- Replacement cooling fan and fuses for preventive maintenance and repairs.
- Mounting hardware / chassis screws for panel or rack installation.
- Downstream DC distribution terminals / bus bars to fan the DC bus out to multiple loads.
- Ferrule / crimp terminals matching the unit’s terminal-block connectors.
Installation and Configuration Guide
- Safety first: de-energize the supply, apply lockout / tagout, and have the work performed only by qualified personnel in accordance with local electrical codes.
- Mounting: install in a clean, dry, well-ventilated location; leave clearance around the cooling fan and vents for adequate airflow.
- Input verification: confirm the supply voltage and frequency match the nameplate (220–660 VAC, 50/60 Hz).
- Input wiring: size input wiring and the upstream fuse / circuit breaker according to the nameplate input rating (16 A) and local code.
- Connection: wire the input line(s) and protective earth (PE) to the input terminals, observing the terminal markings and polarity / phase identification.
- Output configuration: set / confirm the output voltage within the 30–60 VDC range to match the load requirement before connecting the load.
- Load connection: connect the DC load with correct polarity and adequate wire gauge; torque all terminals to specification.
- Energize and verify: power up and confirm that the output voltage and current are within specification.
- Periodic maintenance: clean the fan and vents, inspect connections, and check for capacitor aging on older units.
- Spares and service: keep replacement fan / fuses on hand; for failed units, use a qualified repair service to restore OEM performance.
Because official OEM documentation for this legacy model is not publicly available, the wiring and adjustment steps above are general guidance. The exact terminal layout and voltage-trim method should be confirmed from the unit’s nameplate and any documentation supplied with the unit.
Sourcing and Support Notes
- Original-brand units are available from specialized industrial-automation suppliers; stock availability and lead time vary by supplier.
- Repair and refurbishment services are offered for this model by independent electronics-service companies.
- Before purchasing, request a photo of the nameplate and the inspection report to confirm revision, date code, condition and output configuration.
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