1746-OB8 Output Module Allen-Bradley

Allen-Bradley 1746-OB8 SLC 500 Digital DC Output Module

Core Technical Specifications

• Brand & Manufacturer: Allen-Bradley
• Series & Model: SLC 500 Series, 1746-OB8
• Module Type: 8-Channel Digital DC Output (Sourcing)
• Output Voltage Range: 10 to 50 Volts DC
• Nominal Voltage: 24V DC
• Output Current: 1.0 Amp per point at 30°C (0.5A at 60°C)
• Total Module Current: 8 Amps at 30°C (4A at 60°C)
• Points per Common: 8 points (single common group)
• Backplane Current: 135 mA at 5V DC
• Isolation Rating: 1500V AC (I/O to logic)

Performance & Electrical Ratings

• On-State Voltage Drop: 1.2V maximum at 1A
• Off-State Leakage: Maximum 1 mA
• Surge Current: 3A per point for 10ms maximum
• Minimum Load Current: 1 mA per output
• Heat Dissipation: 0.775W per point, 6.9W total module
• Signal Delay: Typical response time of 1ms (ON/OFF)

Environmental & Safety Certifications

• Operating Temperature: 0 to 60 °C (32 to 140 °F)
• Storage Temperature: -40 to 85 °C (-40 to 185 °F)
• Relative Humidity: 5% to 95% (non-condensing)
• Safety Certifications: UL Listed, CE Compliant, CSA, C-Tick
• Design Compliance: Meets international industrial standards

Frequently Asked Questions (FAQ)

• Q: What is the maximum current for each output?
  A: Each output on the 1746-OB8 supports 1.0 Amp at 30°C, derating to 0.5A at 60°C.
• Q: Does the module have individual point protection?
  A: The 1746-OB8 does not have electronic fusing. It relies on external circuit protection.
• Q: What is your shipping and return policy?
  A: We ship within 5 days via major carriers and offer a 30-day return for unused items.
• Q: How many output groups are there?
  A: All 8 outputs are on a single common group.
• Q: What certifications does this module hold?
  A: It is fully certified with UL, CE, CSA, and C-Tick marks for global use.