Allen Bradley 1771-P2 Auxiliary Power Supply

Overview

The Allen-Bradley 1771-P2 is an auxiliary power supply module. It powers one 1771 I/O chassis that contains an adapter module. Engineers choose this module for its consistent performance in demanding industrial environments. It supplies regulated 5.1 VDC at 6.5 A, ensuring stable backplane operation. Additionally, it works well with other power modules like the 1771-P10 for parallel supply configurations.

Technical Specifications

Electrical Characteristics

• AC Input Voltage: 120 / 220 / 240 VAC

• Input Voltage Range: 98–132 VAC or 196–250 VAC

• Nominal Input Current: 0.75 A @ 120 VAC, 0.38 A @ 220/240 VAC

• Output Voltage: 5.1 VDC

• Backplane Output Current: 6.5 A max @ 5 VDC

• Frequency: 50 / 60 Hz

• Max Real Input Power: 65 W @ full load

Environmental Ratings

• Operating Temperature: 0°C to 60°C (32°F to 140°F)

• Storage Temperature: -40°C to 85°C (-40°F to 185°F)

• Relative Humidity: 5% to 95%, non-condensing

Mechanical Details

• Dimensions (W x H x D): 11.6 cm x 28.6 cm x 18.2 cm

• Dimensions (inches): 4.56" x 11.25" x 7.16"

• Weight: 5.44 kg

• Chassis Slots Used: 2

Fusing and Cabling

• Fuses:

• Bussmann: MDL 1A

• Littelfuse: 313001

• Recommended Cable: 1771-CT

Compatibility

• Parallel Power Supplies: Compatible with 1771-P5 and 1771-P10

• Mounting Location: Installs in 1771 chassis