Overview

The 1771-P7 power supply is designed to power one of the following I/O chassis models:

• 1771-A1B
• 1771-A2B
• 1771-A3B
• 1771-A3B1
• 1771-A4B

This power supply can be used with any adapter module or programmable controller that lacks an internal power supply, including:

• Mini-PLC-2/02®
• Mini-PLC-2/05®
• Mini-PLC-2/16®
• Mini-PLC-2/17®
• PLC-5™ family processor

Specifications

Input Specifications

• Nominal Input Voltage/Current:
  • 120V ac @ 2.0A
  • 220V ac @ 1.0A
• Input Voltage Range:
  • 120V ac: 97-132V ac
  • 220V ac: 195-264V ac
• Input Power:
  • Real Power: 108 Watts
  • Apparent Power: 176 VA
• External Transformer Requirement: 270VA at full load
• Frequency Range: 47-63 Hz
• Isolation Voltage:
  • 2500V dc for 1 second
  • 1800V ac (rms) for 1 second (input power to chassis ground)

Output Specifications

• Output Voltage: 5.06V dc ± 3.8%
• Output Current: 16A max @ 5V dc

Power Loss & Time Delay

• Power Loss Time Delay:
  • Input power to processor disable: 13.6ms ± 2.9ms

Protection

• Fuse: 3A, 250V 3AG normal blow
  (Compatible fuses: Bussmann AGC 3 and Littelfuse 312003)

Physical Specifications

• Weight: 1.95 kg (4.3 lbs.)
• Dimensions (H x W x D):
  • 315mm x 115mm x 159mm (12.40" x 4.53" x 6.25")

Environmental Conditions

• Operating Temperature: 32°F to 140°F (0°C to 60°C)
• Storage Temperature: -40°F to 185°F (-40°C to 85°C)
• Relative Humidity: 5% to 95%, non-condensing

Cables

• 1771-CP1: 0.32m (1.04 ft) – Connects panel-mounted I/O chassis to chassis-mounted 1771-P7
• 1771-CP2: 1.52m (5 ft) – Connects rack-mounted I/O chassis to remote 1771-P7
• 1771-CP3: 1.68m (5.5 ft) – Connects panel-mounted I/O chassis to remote 1771-P7