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- Honeywell
- MC-PAR221 51401140-450
- AC Redundant Power Supply
- USA
- 52 x 204 x 211 mm
- 1.2 kg
- Xiamen, China
- New & In Stock
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- 1 Year
- 1-3 Working Days
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Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The Honeywell MC-PAR221 AC Redundant Power Supply is an industrial-grade power module designed to deliver continuous and fault-tolerant power for automation and control systems. It is engineered with redundancy architecture to ensure uninterrupted operation even in the event of a single power supply failure.
This module is widely used in mission-critical industrial environments where system uptime, stability, and power reliability are essential for safe and continuous operations.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Honeywell |
| Model | MC-PAR221 |
| Part Number | 51401140-450 |
| Product Type | AC Redundant Power Supply |
| Input Voltage | 100–240 VAC |
| Output Voltage | 24 VDC regulated |
| Power Architecture | Redundant dual-supply design |
| Output Stability | High-precision regulated output |
| Efficiency | Industrial high-efficiency conversion |
| Protection | Overload, overvoltage, short-circuit protection |
| Hot Swap Support | Supported (redundant configuration) |
| Dimensions | 52 × 204 × 211 mm |
| Weight | 1.2 kg |
| Mounting | Control cabinet / rack installation |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Application Environment | Industrial automation systems |
Function and Working Principle
The MC-PAR221 operates as a dual-redundant power supply system designed to ensure uninterrupted DC power delivery.
Its working process includes:
- Receiving AC input from the main power source
- Converting AC to stable 24 VDC output
- Operating in parallel with a redundant power unit
- Automatically taking over in case of failure in one unit
- Maintaining continuous power without system interruption
This redundancy mechanism significantly improves system reliability and availability.
Role in Industrial Control Systems
Within industrial automation architectures, the MC-PAR221 serves as a critical high-availability power backbone component.
It supports:
- Continuous operation of control processors
- Stable power supply for communication modules
- Redundant system architecture for fault tolerance
- Prevention of downtime in critical processes
It is essential for systems requiring maximum uptime and operational safety.
Industrial Applications
The MC-PAR221 is widely used in:
- Distributed Control Systems (DCS)
- Oil and gas production facilities
- Power generation plants
- Chemical and petrochemical industries
- Industrial automation systems
- Critical infrastructure control systems
It is especially important in environments where power failure is not acceptable.
Installation and System Integration
Proper installation ensures maximum redundancy performance:
- Installed in industrial control cabinets or system racks
- Connected to dual AC input power sources
- Integrated with redundant system architecture
- Requires correct grounding and load balancing
- Must follow industrial electrical safety standards
Correct setup ensures seamless failover and continuous operation.
Compatible System Components
The MC-PAR221 typically works with:
- Honeywell control processors and CPU modules
- System interface modules
- Communication and network modules
- Distributed I/O systems
- Redundant power distribution units
- Industrial control cabinets and racks
These components rely on stable redundant power for uninterrupted operation.
Recommended Alternative Models
| Model | Type | Key Feature | Application |
|---|---|---|---|
| MC-PAR222 | Redundant Power Supply | Higher output capacity | Large-scale systems |
| MC-PAIH01 | Power Module | Standard non-redundant design | General applications |
| Industrial Redundant PSU Module | Power system | Dual-supply failover | Critical environments |
| Hot-Swap Power Supply Unit | Modular PSU | Maintenance without shutdown | High availability systems |
| DIN Rail Redundant Power System | Power solution | Compact redundancy design | Control cabinets |
Key Advantages
- Redundant power architecture for high availability
- Automatic failover ensures uninterrupted operation
- Stable 24 VDC regulated output
- Strong protection against electrical faults
- Suitable for mission-critical environments
- Supports continuous 24/7 operation
- Industrial-grade durability and reliability
Technical FAQs
What is the main function of MC-PAR221?
It provides redundant AC-to-DC power conversion for industrial control systems.
What happens if one power unit fails?
The redundant unit automatically takes over without interrupting system operation.
Is it suitable for critical systems?
Yes, it is designed for high-availability industrial environments.
Does it support continuous operation?
Yes, it is built for 24/7 industrial use.
Conclusion
The Honeywell MC-PAR221 (51401140-450) AC Redundant Power Supply is a high-reliability power solution designed for mission-critical industrial automation systems. Its redundant architecture ensures continuous operation, system stability, and maximum uptime.
For engineers and system integrators, it provides a dependable foundation for maintaining uninterrupted power in complex industrial environments where reliability is essential.