Xiamen ZhiCheng Automation Technology Co., Ltd
"Precision Engineered, Globally Trusted – Innovating Automation Control & Modular Excellence."
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The Allen-Bradley 1756-PA72/C ControlLogix Power Supply delivers redundant 24V DC power for mission-critical automation systems. Designed as a hot-swappable, dual-slot module for Rockwell Automation's ControlLogix chassis, it provides 72W of isolated power (3A continuous @ 24V DC) with N+1 redundancy support. Its rugged aluminum housing (–40°C to +70°C) features integrated cooling fins and withstands 5g vibration (IEC 60068-2-6), ideal for harsh environments. The supply includes active current-sharing technology for parallel operation and embedded diagnostics for voltage/load monitoring. Key certifications include ATEX Zone 2 and SIL 2 compliance, ensuring reliable operation in hazardous locations and safety-critical processes.
Core performance parameters:
Critical power scenarios:
Operational superiorities:
Advanced power management:
| Parameter Category | Specification / Value |
|---|---|
| Product Description | 120/240V AC Input, 24V DC Output Power Supply for ControlLogix Chassis (Redundancy-Capable) |
| Input Voltage Range | AC: 85-132V AC / 170-265V AC (50/60 Hz) DC: 125-250V DC (Ripple ≤ 10%) |
| Output Power | 72W Continuous (100W Peak for 500 ms) |
| Output Voltage | 24V DC Nominal (±1% Ripple, 1.0V p-p max) |
| Output Current | 3.0A Continuous @ 24V DC (Derating Required Above 40°C) |
| Hold-up Time | ≥ 20 ms @ Full Load |
| Efficiency | ≥ 85% @ Full Load |
| Redundancy Support | Parallel Operation Capable (Up to 4 Units with 1756-CNB Redundancy Module) |
| Redundancy Current Share | Active Current Balancing (±5% Accuracy) |
| Protection Features | • Short-Circuit (Auto-Recovery) • Overvoltage (28V DC Clamping) • Overtemperature (Shutdown @ 85°C) |
| Status Indicators | Green (Power OK), Red (Fault), Yellow (Redundancy Active) |
| Backplane Connection | 1756 High-Density Connector (Supplies 1.5V, 3.3V, 5V, ±12V to Chassis) |
| Chassis Compatibility | 1756-A4, A7, A10, A13, A17 (4- to 17-Slot Chassis) |
| Inrush Current Limit | 40A Peak @ 120V AC (NTC Thermistor) |
| Isolation | Input-to-Output: 1500V AC Output-to-Ground: 500V AC |
| Cooling Method | Convection (Fanless) |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) Derating: Linear from 40°C (100%) to 60°C (50%) |
| Relative Humidity | 5-95% (Non-Condensing) |
| Certifications | cULus Listed (UL 508), CE, ATEX/IECEx Zone 2, RoHS, UKCA |
| Dimensions (H × W × D) | 89 × 135 × 115 mm (3.5 × 5.3 × 4.5 in) |
| Weight | 1.2 kg (2.65 lb) |
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Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
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With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.which make sure that all this jobs are
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we are major in PLC,Sensors,HIM,Transmitters.
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