Allen-Bradley 1756-PA75R Redundant Power Supply

Allen-Bradley 1756-PA75R ControlLogix Redundant Power Supply

Technical Specifications

• Brand: Allen-Bradley
• Model: 1756-PA75R
• Series: ControlLogix
• Module Type: Redundant Power Supply
• Input Voltage Range: 85-265V AC
• Input Frequency: 47-63 Hz
• Output Power: 75W @ 60°C
• Output Current: 13A @ 5.1V DC, 2.8A @ 24V DC
• Input Power: 115W
• Hold-up Time: 2 cycles @ 50/60 Hz
• Operating Temperature: 0 to 60°C (32 to 140°F)
• Weight: 3.2 lb (1.45 kg)

Electrical Specifications

• Nominal input voltage options include 120V AC and 240V AC for flexible installation
• Maximum inrush current measures 20 amperes during initial power application
• Isolation voltage rating provides 250V continuous reinforced insulation protection
• Current capacity includes 4A at 3.3V DC and 1.5A at 1.2V DC for various backplane needs
• Annunciator power support enables connection to external signaling devices

Installation & Compatibility

• Install externally using the panel-mounted design to conserve chassis slot space
• Compatible with all standard 1756 ControlLogix chassis models A4 through A17
• Requires 1756-CPR2 series cables for connection to chassis adapter module
• Needs 1756-PSCA2 series chassis adapter for proper redundant system configuration
• Use Category 3 annunciator wiring with 22-14 AWG stranded copper conductors

Frequently Asked Questions

What makes the 1756-PA75R different from standard power supplies?

• This model provides redundant operation with automatic load sharing for critical systems.

What input voltages does this power supply accept?

• It accepts a wide range from 85-265V AC, supporting most industrial power systems.

What components do I need for a redundant power system?

• You need two PA75R units, two CPR2 cables, and one PSCA2 chassis adapter module.

Can I monitor the power supply status remotely?

• Yes, the solid-state relay output can connect to an input module for status monitoring.

What chassis models are compatible with this power supply?

• It works with all 1756 ControlLogix chassis including A4, A7, A10, A13, and A17.

Do you offer returns for this power supply?

• We provide 30-day returns for products in original condition with complete packaging.

Contact: sales@nex-auto.com