Honeywell MCP-1004

Model Series

Technical Specifications

• Input Voltage Range: 85 VAC – 264 VAC universal alternating current input
• Main Output Rating: 24 VDC, continuous output current 4 A
• Auxiliary output: 5 VDC, 1 A for backplane communication logic circuits
• AC Input Frequency Compatibility: 47 Hz – 63 Hz
• Efficiency Rating: ≥ 88% under full rated load
• Overvoltage protection trigger threshold: 28.5 VDC on main 24V rail
• Overcurrent protection: Auto-recovery foldback current limiting at 4.6 A
• Operating Temperature Range: 0 °C to +55 °C
• Shock & Vibration Compliance: IEC 60068-2-6 industrial vibration standard

Functional Features

1. Integrated input surge suppression circuit against grid voltage spikes
2. Continuous output voltage monitoring with power fault relay contact output
3. Parallel redundant operation support for dual power supply N+1 cabinet redundancy
4. Front panel visual power status LED indicators for main and auxiliary rails
5. Built-in thermal shutdown protection for over-temperature fault conditions

Performance Parameters

• Output voltage regulation (no load to full load): ≤ ±0.5%
• Ripple noise on 24 VDC output: ≤ 80 mV peak-to-peak
• Hold-up time after AC power loss: ≥ 20 ms at full rated 4 A load
• Input power factor correction: PF ≥ 0.92 across full AC input range
• Insulation resistance: ≥ 100 MΩ between AC input and DC output circuits

Material Composition

• Outer casing: Cold-rolled steel enclosure with powder-coated anti-rust finish
• Internal transformer: Silicon steel laminated core with copper winding insulation
• PCB base: FR4 high-temperature fiberglass circuit board
• Terminal connector: Copper alloy spring clamp terminals with flame retardant insulation

Structural Characteristics

• Full-width single-slot rack form factor matching Honeywell standard I/O rack footprint
• Front panel integrated AC input terminal block + fault signal relay terminal port
• Passive convection cooling design without built-in cooling fans
• Locking rack slide latch to secure module against cabinet vibration displacement

Working Principle

Advantage Highlights

1. Universal wide AC input eliminates need for separate step-down transformers for global site deployment
2. N+1 redundant parallel capability enhances control system uninterrupted operation reliability
3. Passive convection cooling design removes fan maintenance and dust accumulation failure risks
4. Fast fault relay signal output enables centralized cabinet power alarm interlock
5. Compact single-slot rack design minimizes cabinet space occupation

Applicable Industries

Installation Requirements

1. Mount only in Honeywell designated leftmost power slot of standard DCS I/O rack
2. Maintain minimum 20 mm top and bottom ventilation clearance inside control cabinet
3. AC input wiring must comply with local industrial electrical safety code, install external circuit breaker rated 10 A maximum
4. For redundant dual power layout, connect fault signal relays in series to central cabinet alarm system
5. Cabinet ambient air flow must maintain air temperature below 55 °C maximum operating rating

Usage Precautions

1. Do not daisy-chain multiple MCP-1004 units on a single AC input circuit without independent overcurrent protection
2. Never short-circuit the 24 VDC main output rail; permanent internal circuit damage will occur
3. Avoid installing adjacent to high heat generating equipment (heating relays, high power contactors) inside cabinet
4. Disconnect AC input power before removing module from rack for inspection or replacement
5. Prevent metal debris or conductive dust accumulation on ventilation slots of module casing