Emerson 1X00126H02 Product Description
 I. Product Overview

The Emerson 1X00126H02 is a high-performance redundant power module of the Emerson Ovation DCS system. It belongs to the second-generation upgraded model of the 1X series and is specifically designed for the core power supply of control cabinets in critical process industries such as power, chemical, and metallurgy. As the power core for the stable operation of the system, it provides pure and reliable 24V DC power to the Ovation controller, I/O modules, communication units, and field instruments. Compared with the previous model (1X00126H01), it has been optimized in terms of input range, redundancy switching speed, anti-interference ability, and heat dissipation efficiency. It is the key power distribution equipment that ensures the uninterrupted operation of Ovation DCS for 7×24 hours. 

II. Core Functions

Ultra-wide Input and High Precision Voltage Stabilization: Supports AC 85–264V (47–63Hz) or DC 100–300V universal input, compatible with different industrial power grids; precisely outputs 24V DC, with voltage fluctuation controlled within ±0.3%, and ripple noise ≤ 35mVpp, providing a low-noise and pure power supply for precise control components, avoiding abnormal control caused by voltage drift.

N+1 Redundancy and Microsecond-Level Seamless Switching: Supports redundant parallel connection of the same model modules, automatically distributing the load; microsecond-level switching occurs when a single module fails, without power interruption, completely eliminating single-point power supply failures; in the redundant mode, it can operate stably for a long time, meeting the high availability requirements for critical processes.

Full-Dimensional Electrical Protection and Self-Healing: Integrates overvoltage, undervoltage, overcurrent, overload, short circuit, and reverse polarity protection; automatically limits current or cuts off the output during faults, protecting the module and the downstream load; automatically recovers after the fault is resolved, without the need for manual reset, reducing operation risks and downtime.

Enhanced Isolation and Strong Anti-Interference: 1500V AC/DC electrical isolation on both input and output sides, built-in surge suppression, static protection, and EMI filtering circuits, capable of withstanding ±2kV voltage spikes and strong electromagnetic interference, suitable for industrial environments with strong noise such as power plants and chemical plants.

Wide Temperature Operation and Long Lifespan Design: Industrial-grade reinforced structure and components, capable of stable operation at **-40℃ to + 70℃** under full load without performance degradation; Mean Time Between Failures (MTBF) ≥ 550,000 hours, meeting the requirements for long-term continuous production in process industries.

Real-time Status Monitoring and Alarm: Panel LED indicators display real-time status of power supply normal, fault, overload, overvoltage, etc.; supports dry contact alarm output, can be connected to DCS or local alarm devices, quickly reflecting power supply abnormalities, facilitating fault troubleshooting.

Online Hot Swap and Rapid Integration: Standard Ovation module specifications, support hot swapping without downtime; compatible with standard DIN rails for installation, Ovation system automatically recognizes, simplifying deployment and maintenance.

Efficient Heat Dissipation and Low Energy Consumption: Efficient switching power supply topology, conversion efficiency ≥ 94%, reducing cabinet heat generation; metal enclosure combined with passive convection cooling, no fan design, reducing failure points and operation costs. Short-circuit protection: The output short-circuit is immediately cut off, and the system automatically recovers when the fault is resolved.

Reverse polarity protection: No output when the input is reversed, protecting the module from damage.

(4) Environmental parameters

Operating temperature: -40°C to + 70°C (no reduction under full load).

Storage temperature: -40°C to + 85°C.

Relative humidity: 5%–95% (no condensation).

Vibration resistance: IEC 60068-2-6, 10–150Hz, 0.15mm amplitude.

Impact resistance: IEC 60068-2-27, 15g, 11ms half-sine wave.

Protection level: IP20 (module body).

Heat dissipation method: Passive convection cooling, no fan design.

(5) Physical parameters

Size: 157mm × 79mm × 20mm (length × width × height), compact type.

Weight: Approximately 0.78kg.

Material: Industrial-grade metal casing, circuit board coated with three protection coatings (damp-proof, salt-fog-proof, corrosion-proof).

Certifications: CE, UL 508, RoHS, IEC 61000-6-2/4, compliant with industrial safety and electromagnetic compatibility standards.

Origin: USA

Four, Product features

High-reliability redundancy, zero interruption guarantee: N+1 redundant architecture + microsecond-level switching, multiple electrical protections, wide temperature stability operation, completely eliminating single-point faults in power distribution, ensuring the DCS system to operate continuously 7×24 hours, suitable for power plants, chemical plants, etc. key scenarios.

High-precision pure output, protecting precise loads: ±0.3% stable voltage accuracy, low ripple noise, 1500V isolation, providing pure power supply for controllers, I/O modules, etc., avoiding control abnormalities or equipment damage caused by voltage fluctuations and interference.

Adaptation to harsh environments, worry-free long-term operation: -40°C to + 70°C ultra-wide temperature range operation, strong vibration and impact resistance, IP20 protection and three protection coatings, able to withstand humid, dusty, strong electromagnetic interference and other harsh working conditions, long-term operation stability.

Easy deployment and maintenance, reducing operation and maintenance costs: standard DIN rail installation, supports hot swapping, plug-and-play; LED indication + system self-diagnosis, quick fault location; no fan design reduces maintenance points and reduces downtime risk.

Efficient energy saving, optimizing cabinet environment: ≥94% conversion efficiency, low energy consumption reduces cabinet heat generation; passive cooling without fan, reduces noise and failure probability, suitable for sealed control cabinet environment, prolongs the overall equipment lifespan.

Five, Application scope

Power industry: thermal power, hydropower, nuclear power Ovation DCS system, providing centralized power distribution for key equipment such as boilers, steam turbines, generators, etc. of controllers, I/O modules and communication equipment, ensuring the safe and stable operation of the units.

Chemical industry: petrochemical, fine chemical, coal chemical plants, providing unified power supply for on-site intelligent instruments, actuators, controllers and monitoring terminals, suitable for continuous production and explosion-proof, strong interference environments.

Metallurgical industry: steel, non-ferrous metal smelting automation systems, providing power distribution for control units and communication equipment of heating furnaces, rolling mills, blast furnaces, etc., able to withstand high temperatures, dust, strong electromagnetic interference.

Other industrial scenarios: Ovation DCS system in large-scale water treatment, papermaking, cement and other industries, serving as the core power distribution equipment, providing stable 24V DC power for all control and communication components of the system.

Six, Installation and maintenance

(1) Installation requirements

Installation location: Fixed on the DIN rail of the Ovation standard control cabinet, leaving ≥50mm heat dissipation space above and below to ensure good ventilation.

Environmental requirements: Temperature - 40°C to + 70°C, humidity 5%–95% (non-condensation); away from strong electromagnetic sources, heat sources, avoid direct sunlight and dust accumulation. Cabling Specifications: The positive and negative poles of input/output connections are clearly distinguished and firmly connected without any looseness; the output wire cross-sectional area is ≥ 1.5mm², and the grounding terminal is reliably connected to the cabinet protection ground.

(II) Maintenance Points

Regular Inspection: Monthly inspection of module appearance, LED status, and cabling to confirm normal output; check DCS alarm logs to identify potential hazards.

Cleaning and Maintenance: Quarterly cleaning of module surface, heat dissipation channels, and terminals with a dry soft cloth, removing dust and oil stains, and tightening loose connections.

Fault Troubleshooting: When there is no output, first check the input power supply and cabling; when overload / short circuit occurs, disconnect the load to troubleshoot the fault; for module failures, perform hot swapping for replacement.

Replacement Considerations: Supports online hot swapping. After replacement, verify the output voltage, test the redundant switching function, and confirm normal operation before putting it into use.

VII. Order Information

Product Model: 1X00126H02

Brand: Emerson

Series： Ovation DCS System 1X Series Redundant Power Module (Second Generation)

Packaging： Original anti-static packaging， including user manual， certificate of conformity， and installation accessories.

Warranty： 12-month original factory warranty， providing global technical support and after-sales maintenance.