Industrial-Grade 24V DC Power Module (Model 51198651-100)

The 51198651-100 represents Honeywell's commitment to delivering robust, field-proven power solutions for distributed control systems. Engineered for continuous operation in harsh industrial environments, this compact 24V DC module supplies 110mA of regulated power to critical automation components across TPS and Experion PKS platforms.

Process industries demand uninterrupted power delivery—the 51198651-100 answers this challenge with wide-range AC/DC input acceptance (85-264V AC / 100-300V DC), extended temperature tolerance (-40°C to +70°C), and 3kV galvanic isolation. Whether you're modernizing legacy TDC 3000 infrastructure or deploying new Experion installations, this power module integrates seamlessly into existing control architectures.

From petrochemical refineries to pharmaceutical clean rooms, the 51198651-100 ensures your I/O modules, communication interfaces, and field instrumentation receive stable, noise-free power. Its DIN rail mounting and compact footprint simplify installation in space-constrained control cabinets, while >85% efficiency reduces heat generation and operational costs.

Core Capabilities & Business Value

→ Universal Input Compatibility
Accepts 85-264V AC or 100-300V DC input, eliminating the need for voltage-specific inventory. Reduces procurement complexity and enables global deployment across facilities with varying electrical standards.

→ Extended Environmental Range
Operates reliably from -40°C to +70°C without derating. Supports installations in unheated enclosures, outdoor cabinets, and high-ambient process areas—reducing HVAC requirements and installation costs.

→ High-Isolation Protection
3kV input-to-output isolation shields sensitive control circuits from electrical transients and ground loops. Minimizes nuisance trips and extends equipment lifespan in electrically noisy industrial environments.

✓ Compact DIN Rail Design
Space-efficient form factor conserves valuable panel real estate. Enables higher component density in control cabinets, reducing enclosure size and material costs for new installations.

✓ Built-In Fault Protection
Integrated overvoltage, short-circuit, and thermal shutdown safeguards protect downstream equipment. Prevents cascading failures and reduces unplanned downtime in mission-critical applications.

✓ Proven Platform Compatibility
Factory-tested with Honeywell TPS, Experion PKS, and legacy TDC 3000 systems. Ensures plug-and-play integration without custom engineering, accelerating project timelines and reducing commissioning risk.

Industry Applications & Problem-Solving

Oil & Gas Upstream Production
Powers remote terminal units (RTUs) and wellhead automation in extreme temperature environments. The 51198651-100's wide operating range eliminates the need for climate-controlled enclosures, reducing CAPEX for offshore platforms and desert installations.

Chemical Batch Processing
Supplies dedicated power to recipe management controllers and analytical instrumentation. Galvanic isolation prevents ground-loop interference that can corrupt batch data, ensuring product quality and regulatory compliance in FDA-regulated facilities.

Power Generation SCADA
Enables redundant power architectures for turbine control systems and emissions monitoring. When deployed in N+1 configurations, the module's >100,000-hour MTBF supports 99.99% uptime targets for baseload generation assets.

Water Treatment Automation
Drives PLC I/O modules controlling chemical dosing and filtration systems. The module's IP20 rating and conformal coating options protect against humidity and corrosive atmospheres in wastewater treatment plants.

Pharmaceutical Manufacturing
Provides clean, regulated power for cleanroom environmental monitoring systems. Meets stringent EMC requirements for installations near sensitive analytical equipment, supporting 21 CFR Part 11 compliance initiatives.

Technical Specifications & Selection Criteria

Sizing Recommendations: For systems requiring >100mA, deploy multiple 51198651-100 modules in parallel or upgrade to higher-capacity Honeywell power supplies. Always maintain 20% capacity margin for future expansion and transient loads during startup.

Advanced Integration Features

Redundant Power Architectures
The 51198651-100 supports ORing diode configurations for N+1 redundancy. When paired with Honeywell's redundant power distribution modules, you can achieve automatic failover without interrupting control system operation—critical for SIL-rated safety applications.

Remote Monitoring Readiness
While the base module lacks built-in diagnostics, it integrates with Honeywell's Experion Power Management System for centralized monitoring. Track power supply health, load current, and temperature trends through your existing HMI infrastructure.

Customization Options
Conformal coating (tropical/marine environments), extended temperature variants (-55°C to +85°C), and custom output voltages available for OEM applications. Minimum order quantities apply—consult factory for lead times and pricing.

Delivery Timeline & Service Commitments

Standard Delivery: 3-5 business days for in-stock units (North America/Europe)
Custom Configurations: 4-6 weeks for factory-modified units
Warranty Coverage: 12 months from shipment date, covering material defects and workmanship
Technical Support: Lifetime phone/email assistance for installation, troubleshooting, and system integration
Documentation Package: Installation manual, dimensional drawings, compliance certificates (CE, UL, RoHS)

All shipments include anti-static packaging and handling instructions. Expedited shipping available for emergency replacements—contact our support team for same-day dispatch options.

Frequently Asked Questions

Can the 51198651-100 power supply module operate with both AC and DC input simultaneously?
No, the module accepts either AC or DC input, not both concurrently. The universal input circuitry automatically detects and adapts to the applied voltage type. For redundant input applications, use external ORing diodes or Honeywell's dual-input power modules.

What is the maximum cable length between the power module and connected I/O devices?
For 24V DC distribution, limit cable runs to 100 meters (328 feet) using 18 AWG wire to maintain voltage regulation within ±5%. Longer distances require voltage drop calculations and potentially larger wire gauges or local power supplies.

Does this Honeywell power module support hot-swapping in redundant configurations?
Hot-swap capability depends on system architecture. When using ORing diodes and proper load-sharing design, you can replace a failed module without interrupting power to connected devices. Always verify your specific system design with a qualified integrator.

How does the 51198651-100 compare to third-party 24V DIN rail power supplies?
While generic power supplies may offer similar specifications, the 51198651-100 provides factory-validated compatibility with Honeywell control systems, extended temperature ratings, and access to Honeywell's global support network—reducing integration risk and long-term support costs.

What protection features prevent damage from output short circuits?
The module incorporates automatic current limiting and thermal shutdown. During a short circuit, output current is restricted to safe levels while an internal thermal sensor monitors component temperature. The unit automatically recovers when the fault is cleared and temperatures normalize.

Is the 51198651-100 suitable for hazardous area installations?
The base module carries IP20 rating and is designed for installation in control rooms or non-hazardous areas. For Zone 1/Division 1 applications, mount the power supply in a purged/pressurized enclosure or use Honeywell's intrinsically safe barrier modules to interface with field devices.

Get Expert Guidance for Your Automation Project

Selecting the right power architecture is critical for system reliability and long-term performance. Our application engineers can review your system requirements, recommend optimal power distribution strategies, and provide detailed load calculations for your specific installation.

Contact our team today: Share your project details, and we'll respond within 4 business hours with technical recommendations and pricing for the 51198651-100 and complementary system components.

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