1756-OB32 DC Output Module Allen-Bradley

Allen-Bradley 1756-OB32 High-Density DC Output Module

Technical Specifications

• Brand & Manufacturer: Allen-Bradley
• Series: ControlLogix
• Model Number: 1756-OB32
• Module Type: High-Density DC Output Module
• Output Type: Sourcing
• Output Voltage Range: 10-31.2 Volts DC
• Number of Outputs: 32 Points (2 groups of 16)
• Output Current per Point: 0.5A at 50°C, 0.35A at 60°C
• Module Current Rating: 16A at 50°C, 10A at 60°C
• Response Time (OFF to ON): 60 µs nominal, 1 ms maximum
• Response Time (ON to OFF): 200 µs nominal, 1 ms maximum
• Backplane Current: 300mA at 5.1V DC
• Power Dissipation: 4.8 Watts maximum at 60°C
• Isolation Voltage: 250V continuous

Application & Protection

• Controls devices like relays, contactors, solenoids, pilot lights, and audible signals.
• Recommended Fuse: 5x20mm, 800 mA fast-acting (e.g., Littelfuse SP001.1003).
• Always follow proper installation sequence: ground chassis and power supply first.
• Supports multiple communication formats for system flexibility.
• Operating Temperature: 0°C to 60°C (32°F to 140°F).

Frequently Asked Questions

• Q: What is the key benefit of the 1756-OB32 module?
  A: It packs 32 output points into a single slot, optimizing chassis space and reducing overall system cost.
• Q: Is this module sinking or sourcing?
  A> The 1756-OB32 is exclusively a sourcing output module. Verify your load wiring compatibility.
• Q: Are external fuses necessary?
  A: Yes, external fusing is required for protection. We recommend an 800mA fast-acting fuse on each output circuit.
• Q: How helpful are the front-panel LEDs?
  A: Each point has a dedicated LED that lights when active, offering immediate visual feedback for diagnostics and operation verification.
• Q: What is your return policy?
  A> We offer a 30-day return policy for products returned unused in their original, sealed packaging.

Contact: Email sales@nex-auto.com or call/WhatsApp +86 153 9242 9628.