Allen-Bradley 1756-PSCA2XT Redundant Power Supply Chassis Adapter

Ensure uninterrupted power for critical operations. The 1756-PSCA2XT adapter connects two power supplies to your ControlLogix chassis. It provides backup power if one supply fails. Essential for systems that cannot afford downtime.

Key Advantages

• Redundant power design: Automatic switchover if primary fails
• High current capacity: 15A at 5.1V DC maximum output
• Extreme environment rated: -13°F to 158°F operation
• Easy installation: Mounts on left chassis side
• Proven reliability: Industrial shock and vibration rated

Technical Specifications

• Brand: Allen-Bradley
• Model: 1756-PSCA2XT Redundant Adapter
• Module Type: Power Supply Chassis Adapter
• Current Capacity: 1.5A at 1.2V, 4A at 3.3V, 15A at 5.1V, 2.8A at 24V
• Operating Temperature: -13°F to 158°F (-25°C to 70°C)
• Storage Temperature: -40°F to 185°F (-40°C to 85°C)
• Humidity: 5-95% non-condensing
• Vibration Rating: 2G at 10-500 Hz
• Shock Resistance: 30G operating, 50G non-operating
• ESD Immunity: 6kV contact, 8kV air discharge
• Backplane Current: 125mA at 24V DC
• Power Dissipation: 25.7W at 30°C, 21.3W at 60°C
• Weight: 8.1 ounces (0.23 kg)
• Dimensions: 1.38" x 6" x 5.81"

Compatible Power Supplies

• 1756-PA75R AC Power Supply
• 1756-PB75R DC Power Supply
• Other 1756 series power modules

Installation Notes

• Mount horizontally on left chassis side
• Maintain 5-inch minimum cable bend radius
• Use proper 1756-CPR2 connection cable
• Follow all electrical safety procedures
• Ensure proper grounding

Environmental Ratings

• Operating Temperature: -25°C to 70°C
• Storage Temperature: -40°C to 85°C
• Humidity: IEC 60068-2-30 compliant
• Pollution Degree: Level 2
• Enclosure: Open-style design

Professional FAQ

• What power supplies work with 1756-PSCA2XT?
  Compatible with 1756-PA75R and 1756-PB75R models.
• How many adapters needed per system?
  Only one adapter required for redundant setup.
• What is the maximum current at 5V?
  15A at 5.1V DC for high-power applications.
• Can it handle power surges?
  Yes, 6kV ESD protection for surge immunity.
• What cable is used for connection?
  1756-CPR2 cable with proper bend radius.

Get Complete Documentation

• Full installation guide
• Wiring diagrams
• Compatibility charts
• Download Technical Manual Now

Shipping & Support

• 12-month quality warranty
• Fast worldwide delivery
• Shipping carriers: FedEx, UPS, DHL
• Expert technical support

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