HONEYWELL MC-PAIH03 high-voltage analog input module
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HONEYWELL MC-PAIH03 high-voltage analog input module
The HONEYWELL MC-PAIH03 is a high-voltage analog input module, specifically designed as part of Honeywell’s TDC 3000 and Experion PKS systems to serve as a critical interface between high-voltage field devices and distributed control systems (DCS). Its primary role is to receive, isolate, and condition high-voltage analog signals—such as those from current transformers (CTs) and voltage transformers (VTs)—before converting them into digital data that the DCS can process.
Model MC-PAIH03
Brand Honeywell
Type High-Voltage Analog Input Module
Power Supply 24 V DC (18–30 V DC range)
Operating Temperature -40°C to 70°C (-40°F to 158°F)
Number of Channels 8 (independently configurable)
Input Ranges Voltage: 0–100 V, 0–300 V, 0–600 V AC/DC; Current: 0–1 A, 0–5 A AC/DC
Isolation Rating 2500 V RMS (channel-to-channel and channel-to-backplane)
Accuracy ±0.1% of full scale (at 25°C)
Resolution 16 bits
Common-Mode Rejection Ratio (CMRR) 120 dB at 50/60 Hz
Dimensions 160 mm x 100 mm x 220 mm (W x H x D)
Weight 1.8 kg (3.97 lbs)
Mounting DIN rail (35 mm) or rack mount
Interfaces Backplane connector (compatible with TDC 3000/Experion racks)
Certifications CE, UL, CSA, IEC 61010-1 (CAT III 600 V)
Cooling Passive (conduction-based)
The HONEYWELL MC-PAIH03 is a high-voltage analog input module, specifically designed as part of Honeywell’s TDC 3000 and Experion PKS systems to serve as a critical interface between high-voltage field devices and distributed control systems (DCS). Its primary role is to receive, isolate, and condition high-voltage analog signals—such as those from current transformers (CTs) and voltage transformers (VTs)—before converting them into digital data that the DCS can process.
MC-PAIH03
What sets the HONEYWELL MC-PAIH03 apart is its ability to handle input ranges up to 600 V AC/DC while providing galvanic isolation of 2500 V RMS, protecting sensitive control system components from electrical surges. It integrates seamlessly with Honeywell’s Universal Station and Process History Database, as well as third-party SCADA systems through standard protocols, providing engineers and integrators with a safe, reliable solution for high-voltage monitoring. Whether deployed in new power distribution systems or retrofitted into existing industrial electrical networks, the HONEYWELL MC-PAIH03 delivers the isolation and accuracy required for high-voltage applications.
MC-PAIH03
Main features and advantages:
A key strength of the HONEYWELL MC-PAIH03 is its exceptional signal isolation and processing capabilities. The module features 8 independent channels, each with dedicated isolation barriers that prevent high-voltage transients from propagating to the control system—critical for protecting both equipment and personnel. Each channel can be independently configured to accept voltage (0–600 V AC/DC) or current (0–5 A AC/DC) inputs, eliminating the need for external signal converters and reducing system complexity. Hardware-wise, the HONEYWELL MC-PAIH03 features a rugged metal housing designed to withstand operating temperatures from -40°C to 70°C, making it suitable for installation in harsh industrial environments, including those with high levels of electromagnetic interference (EMI). Its compact design allows for dense packing in control cabinets, while its passive cooling system eliminates the risk of fan failure in dusty or humid conditions.
Reliability is another hallmark of the HONEYWELL MC-PAIH03. It incorporates advanced self-diagnostic features that continuously monitor for isolation failures, signal clipping, and power supply irregularities, providing real-time alerts to operators via the DCS. The module’s 16-bit analog-to-digital converter ensures measurement accuracy of ±0.1% of full scale, even for rapidly changing signals such as those in variable frequency drive systems. Its high common-mode rejection ratio (CMRR) of 120 dB at 50/60 Hz minimizes noise pickup from nearby power cables, ensuring clean signal processing. The HONEYWELL MC-PAIH03 also supports hot-swapping, allowing for replacement during system operation without disrupting critical high-voltage monitoring—an essential feature in 24/7 industrial facilities.
Technical specifications:
Model MC-PAIH03
Brand Honeywell
Type High-Voltage Analog Input Module
Power Supply 24 V DC (18–30 V DC range)
Operating Temperature -40°C to 70°C (-40°F to 158°F)
Number of Channels 8 (independently configurable)
Input Ranges Voltage: 0–100 V, 0–300 V, 0–600 V AC/DC; Current: 0–1 A, 0–5 A AC/DC
Isolation Rating 2500 V RMS (channel-to-channel and channel-to-backplane)
Accuracy ±0.1% of full scale (at 25°C)
Resolution 16 bits
Common-Mode Rejection Ratio (CMRR) 120 dB at 50/60 Hz
Dimensions 160 mm x 100 mm x 220 mm (W x H x D)
Weight 1.8 kg (3.97 lbs)
Mounting DIN rail (35 mm) or rack mount
Interfaces Backplane connector (compatible with TDC 3000/Experion racks)
Certifications CE, UL, CSA, IEC 61010-1 (CAT III 600 V)
Cooling Passive (conduction-based)
Contact Us Phone:+86 16626708626 WeChat/WhatsApp:+86 16626708626 Email: 3772179818@qq.com
Application areas:
In industrial processes where precise monitoring of high-voltage analog signals is critical to operational safety and efficiency, a specialized input module is essential. Imagine a power generation plant tracking voltage fluctuations across 8 different transformer windings, where even a 1% deviation can indicate Potential equipment failure. Or a metal smelting facility monitoring current levels in 16 electric arc furnaces, where overloads can cause costly downtime and safety hazards. These are the environments where the HONEYWELL MC-PAIH03 excels, serving as a robust data acquisition tool in industrial automation systems. Used in industrial automation setups ranging from utility substations to heavy manufacturing plants, the HONEYWELL MC-PAIH03 is engineered to handle high-voltage analog inputs with exceptional accuracy, converting dangerous levels of electrical signals into safe, processable data for control systems. It’s particularly valuable in applications where high-voltage equipment coexists with sensitive electronics, such as in renewable energy farms or chemical processing plants with large motor drives. The HONEYWELL MC-PAIH03 addresses the challenge of isolating high-voltage signals from low-voltage control systems, ensuring both operator safety and data integrity in high-risk environments.
Related products:
HONEYWELL MC-PAOH03 – High-voltage analog output module that pairs with the HONEYWELL MC-PAIH03 for closed-loop control of high-voltage systems.
HONEYWELL MC-DIH04 – Digital input module often used alongside the HONEYWELL MC-PAIH03 to monitor high-voltage breaker statuses.
HONEYWELL MC-ISO-05 – Enhanced isolation module that adds 5000 V RMS protection to the HONEYWELL MC-PAIH03 for utility-grade applications.
HONEYWELL MC-COMM-06 – Communication module that connects the HONEYWELL MC-PAIH03 to Ethernet/IP networks for remote monitoring.
HONEYWELL MC-CAL-07 – High-voltage calibration kit specifically designed for verifying the HONEYWELL MC-PAIH03’s accuracy.
HONEYWELL MC-BP-08 – Backplane adapter allowing the HONEYWELL MC-PAIH03 to integrate with legacy Honeywell Series 800 racks.
HONEYWELL MC-PSU-09 – Redundant power supply unit optimized for the HONEYWELL MC-PAIH03 in critical applications.
HONEYWELL MC-DIAG-10 – Advanced diagnostic module that works with the HONEYWELL MC-PAIH03 to predict isolation barrier degradation.
Installation and maintenance:
Before installing the HONEYWELL MC-PAIH03, ensure the mounting rack or DIN rail is securely grounded to a dedicated safety earth (PE) to maximize isolation effectiveness. Verify that the control cabinet is rated for the environment, with a minimum IP54 rating to protect against dust and moisture in industrial settings. When wiring the HONEYWELLMC-PAIH03 to high-voltage sensors, use insulated cables rated for at least 1000 V and separate them from low-voltage wiring by at least 300 mm to prevent capacitive coupling. Ensure all connections are torqued to manufacturer specifications (2.5 Nm for terminal screws) to avoid resistance-induced heating. It’s critical to label all high-voltage input cables clearly with voltage ratings and phase identifiers to prevent accidental contact during maintenance.
For maintenance, schedule annual calibration of the HONEYWELL MC-PAIH03 using a high-voltage calibrator certified for the module’s input ranges, with special attention to isolation integrity testing. Conduct quarterly visual inspections to check for signs of arcing (blackening) on terminal blocks, which can indicate loose connections or insulation breakdown. Use Honeywell’s TDC 3000 or Experion software to run isolation resistance tests semi-annually, ensuring barrier integrity remains above 1 GΩ at 500 V DC. The module’s design allows for in-place calibration without removing it from the rack, but ensure all high-voltage inputs are disconnected and locked out/tagged out (LOTO) during service. With proper maintenance, the HONEYWELL MC-PAIH03is engineered to provide reliable service for 15+ years in typical industrial environments.
WhatsApp: +86 16626708626
Email: 3772179818@qq.com
Phone: +86 16626708626
