Product Overview

The 1756-PB75R is a ControlLogix Redundant Power Supply designed to provide reliable and stable power for ControlLogix systems. This power supply is optimized for use in demanding industrial environments, offering robust performance and high reliability.

Key Features

• Input Voltage Range: 19.2…32V DC
• Input Voltage: 24V DC
• Input Frequency Range: DC
• Input Power, Max: 110 W
• Output Power, Max: 75 W @ 0…60 °C (32…140 °F)
• Hold-up Time: 20 ms
• Inrush Current, Max: 30 A
• Current Capacity:
  • @ 1.2V: 1.5 A
  • @ 3.3V: 4 A
  • @ 5.1V: 13 A
  • @ 24V: 2.8 A
• Annunciator Power: 240V AC/DC, 50 mA, Resistive only
• Overcurrent Protection, Max: User-supplied 15 A
• Fusing: Non-replaceable fuse soldered in place
• Isolation Voltage: 250V (continuous), Reinforced Insulation Type, Power Input to Backplane, Power Input to Annunciator, Annunciator to Backplane; Type tested at 2500V DC for 60 s
• Enclosure Type Rating: None (open-style)
• Torque: 0.79 N•m (7 lb•in)

Environmental Specifications

• Operating Temperature:
  • IEC 60068-2-1 (Test Ad, Operating Cold)
  • IEC 60068-2-2 (Test Bd, Operating Dry Heat)
  • IEC 60068-2-14 (Test Nb, Operating Thermal Shock)
  • 0…60 °C (32…140 °F)
• Surrounding Air Temperature, Max: 60 °C (140 °F)
• Non-operating Temperature:
  • IEC 60068-2-1 (Test Ab, Unpackaged Nonoperating Cold)
  • IEC 60068-2-2 (Test Bb, Unpackaged Nonoperating Dry Heat)
  • IEC 60068-2-14 (Test Na, Unpackaged Nonoperating Thermal Shock)
  • -40…85 °C (-40…185 °F)
• Relative Humidity:
  • IEC 60068-2-30 (Test Db, Unpackaged Damp Heat)
  • 5…95% non-condensing
• Vibration:
  • IEC 60068-2-6 (Test Fc, Operating)
  • 2 g @ 10…500 Hz
• Shock:
  • Operating: IEC 60068-2-27 (Test Ea, Unpackaged Shock), 30 g
  • Non-operating: IEC 60068-2-27 (Test Ea, Unpackaged Shock), 50 g

Mechanical Specifications

• Dimensions (HxWxD):
  • Approx. 175 x 145 x 137 mm (6.9 x 5.7 x 5.4 in)
• Weight:
  • Approx. 1.45 kg (3.2 lb)

Chassis Compatibility

• Compatible with ControlLogix chassis: 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17

Electrical and EMC Specifications

• Wire Category:
  • 1 - on power ports
  • 3 - on annunciator ports
  • 3 - on 1756-CPR2 connections
• Pilot Duty Rating: Annunciator - not rated
• Conductor Screw Torque: 0.79 N•m (7 lb•in)
• Solid-State Relay Contact: 240V AC/DC
• North American Temperature Code: T4
• IEC Temperature Code: T4
• Emissions: CISPR 11 (IEC 61000-6-4), Class A
• ESD Immunity: IEC 61000-4-2
  • 6 kV contact discharges
  • 8 kV air discharges
• Radiated RF Immunity: IEC 61000-4-3
  • 10V/m with 1 kHz sine-wave 80% AM from 30...1000 MHz
  • 10V/m with 200 Hz 50% Pulse 100% AM @ 900 MHz
  • 10V/m with 200 Hz 50% Pulse 100% AM at 1890 MHz
  • 3V/m with 1 kHz sine-wave 80% AM from 2000…2700 MHz
• EFT/B Immunity: IEC 61000-4-4
  • ±4 kV at 5 kHz on power ports
  • ±4 kV at 5 kHz on annunciator ports
• Surge Transient Immunity: IEC 61000-4-5
  • ±1 kV line-line (DM) and ±2 kV line-earth (CM) on power ports