Detailed Product Description of Emerson 1X00024H03

I. Product Overview

1X00024H03 is an advanced AC/DC power module of Emerson (formerly Westinghouse) Ovation DCS system. It is an upgraded model of 1X00024H01 and is specifically designed for Ovation 1X series I/O cabinets and control stations. It converts high-voltage alternating current into a stable 24VDC output, providing higher efficiency, wider temperature range, and stronger redundancy capability for controllers, I/O cards, and field instruments. It is the core spare part of DCS systems in critical process industries such as thermal power, chemical engineering, and metallurgy. It emphasizes high power density, low energy consumption, long lifespan, and online maintenance capabilities. 

II. Basic Information

Brand: Emerson / Westinghouse

Model: 1X00024H03

Product Type: Ovation DCS System 24VDC Redundant Power Module (Upgrade Version)

Compatible System: Ovation 1X Series I/O Cabinet, Control Station Enclosure (Compatible with 1X00024H01 Rack)

Installation Method: Standard 19-inch Rack Installation or DIN Rail Installation

Product Status: Mainstream production model, fully supplied with new original equipment, preferred for system expansion of old systems

Warranty: New Original 12 Months, Factory Refurbished 12 Months

Manufacturing Standards: Compliant with CE, UL, CSA, RoHS, meeting Class A Industrial EMC and Safety Requirements

Origin: United States

Weight: Approximately 1.42 kg

Size: Standard Rack Module (Approximately 250mm × 120mm × 80mm)

Hardware Version: Common Rev 03 (Compatible with Rev 01/02)

III. Core Functions

1. Wide-range AC Input and Ultra-high Efficiency

Supports 100–240VAC (50/60Hz) universal voltage input worldwide, automatically adapts to grid fluctuations, no manual adjustment required. Utilizes the latest resonant soft-switching technology (efficiency up to 94%), minimal heat generation at full load, energy consumption savings of 10%+, significantly reduces cabinet heat load, economic performance significantly improved over long-term operation.

2. Single-channel High-power 24VDC Output (Enhanced)

Provides a single-channel highly stable 24VDC output with a rated current of 20A, total power of 500W, suitable for large-load I/O cabinets and high-density control stations. Output accuracy ±0.5%, ripple <30mV, superior to the previous generation, perfectly compatible with precision I/O modules and intelligent instruments, avoiding signal drift caused by electromagnetic interference.

3. Redundancy Configuration and Millisecond-level Seamless Switching

Supports dual power supply parallel redundancy (N+1), can be combined with the same model modules to form a highly reliable power supply system. In the event of a main power failure, the standby power **automatically seamlessly switches within <10ms** without voltage drop or system restart, ensuring continuous control logic and I/O signals, meeting high-reliability process scenarios.

4. Hot Swap Maintenance (Online Replacement)

Supports live hot swapping, no need for downtime or power interruption to replace faulty modules online, zero downtime maintenance, significantly reduces the risk of production downtime due to power failures, suitable for 7×24-hour continuous operation conditions.

5. Comprehensive Intelligent Protection Mechanism

Built-in multiple hardware + software protection: output overvoltage clamping (>28VDC), overcurrent limiting (>22A), short-circuit instantaneous shutdown (self-recovery), overheating shutdown (>85℃), input reverse polarity protection, surge / ESD protection. When a fault occurs, the module automatically isolates, the panel displays precise alarms, supports remote fault code upload, facilitating quick location and diagnosis.

6. Wide Temperature Range Industrial-strength Robust Design

Full metal casing reinforced, three-proof coating (damp-proof / corrosion-proof / salt fog-proof), anti-vibration (5g, 10–500Hz), anti-shock (15g, 11ms). Operating temperature **‑20℃～+75℃**, covers extreme conditions, storage temperature -40℃～+85℃, withstands high temperatures, high humidity, high dust, strong electromagnetic interference, etc., harsh industrial environments.

7. Intelligent Status Indication and Remote Monitoring

The panel is equipped with high-brightness LED status indicator lights: power normal (green always on), output ready (green flashing), fault / alarm (red), clearly displaying input, output, redundancy, protection status. Support remote dry contact alarm + RS485 communication, capable of connecting to DCS or SCADA systems, achieving centralized monitoring of power status, fault warning and historical data retrieval.

IV. Technical Parameters

1. Input Parameters

Input Voltage: 100–240VAC (±10%), 50/60Hz

Input Current: Maximum 6A (240VAC full load)

Surge Current: <25A (cold start)

Power Factor: >0.95 (full load)

2. Output Parameters

Output Channel: Single 24VDC

Rated Output: 24VDC (±0.5%), 20A, 500W

Ripple Noise: <30mV (peak-to-peak)

Load Regulation Rate: <0.3% (0–100% load)

Linearity Regulation Rate: <0.1% (input fluctuation ±10%)

3. Protection Parameters

Overvoltage Protection: Clamping / Turn-off when output > 28VDC

Overcurrent Protection: Limiting current when output > 22A for a limited time

Short Circuit Protection: Instantaneous shutdown, automatic recovery upon fault elimination

Overheating Protection: Shutdown when > 85℃, automatic restart when < 60℃

Isolation Strength: 2000VAC / 1min between input and output

4. Environmental Parameters

Operating Temperature: -20℃ to +75℃ (full load no reduction)

Storage Temperature: -40℃ to +85℃

Relative Humidity: 5%–90% RH, no condensation

Vibration: 5g (10–500Hz, sine wave)

Impact: 15g (11ms, half sine wave)

Protection Grade: IP20 (module level, compatible with cabinet protection)

V. Compatibility and Substitution Relationship

1. Compatible Systems and Components

Compatible Cabinet: Ovation 1X series I/O cabinet, standard control station chassis (compatible with 1X00024H01 rack)

Compatible Load: Ovation 1C/1P/1X series controllers, high-density I/O modules, communication cards, 24VDC field instruments

Redundant Configuration: Supports forming N+1 redundancy with the same model 1X00024H03

Installation Accessories: 19-inch rack tray, DIN rail adapter, dedicated connector

2. Substitution and Compatible Models

Same Model Interchange: 1X00024H03 fully interchangeable, direct replacement

Upward Compatibility: Fully replaces 1X00024H01, performance significantly improved (higher efficiency, wider temperature range, greater power)

Downward Compatibility: Old system 1X00024H01 cabinet can be directly upgraded to 1X00024H03, no need to modify the rack

VI. Typical Application Scenarios

1. Thermal Power Generation

Used for high-density I/O cabinets in boiler, turbine, generator control stations, providing high-power, stable 24VDC power supply for Ovation controllers, multi-channel analog/digital I/O modules, temperature/pressure transmitters, valve positioners, compatible with high-temperature, high-dust, strong electromagnetic interference conditions, ensuring zero interruption of control power supply for the unit.

2. Petrochemical

Applied to large-scale refining and chemical plants, reaction vessels, compression units, distillation towers high-load I/O stations, providing power supply for explosion-proof instruments, safety barriers, solenoid valves, emergency stop systems (ESD), supporting redundant configuration and hot-swappable maintenance, compatible with flammable and explosive, corrosive environments, ensuring continuous operation of the process.

3. Metallurgy / Cement

Compatible with high-temperature, high-dust, strong vibration control cabinets for furnaces, steel rolling lines, kilns, mills, providing power supply for field sensors, motor control modules, interlock protection circuits, ensuring stable production process, safe interlock reliability.

4. Water Treatment / Natural Gas / Papermaking For high-density I/O cabinets of DCS systems in water treatment plants, gas gate stations, and paper mills, providing high-reliable 24VDC power supply for I/O modules, field instruments, and actuators, supporting remote alarms and centralized monitoring, and reducing maintenance costs.

VII. Maintenance and Selection Suggestions

1. Spare Parts Selection

For high-density I/O cabinets of the Ovation system, key control stations, and circuits with high reliability requirements, the new original 1X00024H03 model should be selected; when upgrading the old system with 1X00024H01, directly replacing it with 1X00024H03 can significantly improve power supply stability and efficiency; for limited budgets, original refurbished parts can be selected, with key inspections including output voltage accuracy, ripple, redundant switching, protection functions, and LED indicators.

2. Daily Maintenance

Monthly: Check the LED status on the panel, clean the dust in the cabinet, ensure good heat dissipation and ventilation

Every 3 months: Check the installation tightness of the modules, whether the connectors are loose or oxidized, and test the output voltage and ripple

Every 6 months: Verify the redundant switching function, remote alarm function, and check if the cooling air duct is blocked

Every year: Comprehensive performance testing (load adjustment rate, linear adjustment rate, protection threshold), anti-corrosion coating inspection

3. Upgrade and Expansion Suggestions

For new projects, dual redundant 1X00024H03 should be prioritized for configuration to ensure power supply reliability; when upgrading the old system or replacing spare parts, prioritize upgrading to 1X00024H03, which is compatible with the original frame and has comprehensive performance surpassing 1X00024H01, avoiding system failures caused by power aging.