Allen-Bradley 1756-OC8 DC Output Module

Allen-Bradley 1756-OC8 ControlLogix Digital Output Module

Core Technical Specifications

• Brand & Manufacturer: Allen Bradley
• Series: ControlLogix
• Model Number: 1756-OC8
• Module Type: DC Output Module
• Rated Voltage: 48 Volts DC Source
• Operating Voltage Range: 30-60 Volts DC
• Output Points: 8 Points (4 points per group)
• Max Current per Point: 2 Amps at 60°C
• Max Current per Module: 8 Amps at 60°C

Electrical & Performance Data

• Surge Current: 4 Amps for 10 ms per point (repeatable)
• On-State Voltage Drop: 2 VDC maximum at 2A
• Off-State Leakage: 1 mA maximum per point
• Output Delay: 1 ms (Off to On), 2 ms (On to Off)
• Minimum Load Current: 2 mA
• Backplane Power: 0.89 Watts
• Current Draw: 165 mA @ 5.1V, 2 mA @ 24V

Installation & Compatibility

• Required Terminal Block: 20-pin 1756-TBNH or 1756-TBSH (sold separately).
• Mounting: Install in any slot of a grounded ControlLogix chassis.
• Protection Note: Module is not fused; use a fused IFM (Input/Output Module) for output protection.
• Recommended Fuse: 5x20mm 4A quick-acting fuse (e.g., SOC MQ2-4A).
• Isolation Voltage: 50 Volts continuous.

Operational & System Features

• Communication Formats: Rack Optimization, Scheduled Output Data, Listen-Only modes.
• Fault State Configuration: Set per point to On, Off, or Hold Last State (default is Off).
• Power Dissipation: 4.9 Watts maximum at 60°C.
• Thermal Dissipation: 16.71 BTU/hour.
• Operating Temperature: Rated for up to 60°C (140°F).

Frequently Asked Questions (FAQ)

• Q: What voltage does the 1756-OC8 module require?
  A: The 1756-OC8 operates on a 30-60V DC supply, with a nominal rating of 48V DC.
• Q: How much current can I draw from a single output?
  A: Each output point supports a maximum continuous current of 2 Amps at 60°C.
• Q: What terminal block do I need for this module?
  A: You need a 20-pin removable terminal block, either the 1756-TBNH or the 1756-TBSH.
• Q: Is fuse protection included with the module?
  A: No, the module is not internally fused. We recommend using an external fused IFM for protection. A 4A quick-acting fuse is suggested.
• Q: Do you have the 1756-OC8 in stock ready to ship?
  A: Yes, we stock the 1756-OC8 and typically ship orders within 5 business days.

For more information or to purchase the 1756-OC8 module, contact our sales team today.

Contact Information Inquiries: sales@nex-auto.com , +86 153 9242 9628

Partner NexAuto Technology Limited : https://www.nex-auto.com/