1762-OB8 | Allen-Bradley Solid-State Expansion Module Supplier

Introduction to the 1762-OB8

When an automation system requires additional digital outputs, the 1762-OB8 from Allen-Bradley delivers a reliable solid-state expansion solution. As part of the MicroLogix 1200 series, this module offers 8 sourcing outputs with a 20.4 to 26.4V DC operating voltage range. It draws 115 mA backplane current at 5V DC, making it an efficient choice for expanding I/O capacity.

Key Features & Technical Specs

• 8 digital 24V DC sourcing outputs for precise control.
• Operating voltage range of 20.4-26.4V DC ensures flexibility.
• Backplane current draw of 115 mA at 5 Volts minimizes power consumption.
• Maximum ON-state voltage of 1.0V DC for reliable signal delivery.
• Signal delay of 0.1 ms ON-state and 1.0 ms OFF-state at resistive load.
• Maximum leakage current of 1.0 mA in OFF-state.
• 0.5A maximum current per point, 4A aggregate per module.
• 2A intermittent surge current for 10 ms, repeatable every 2 seconds.
• Group-to-backplane isolation tested at 1200V AC or 1697V DC for 1 second.
• Operational power dissipation of 1.6 Watts.
• Operating temperature range 0 to 55°C (32 to 131°F).
• Storage temperature range -40 to 85°C (-40 to 185°F).
• Non-condensing humidity tolerance 5 to 95%.
• Maximum altitude 6561 feet for optimal performance.
• Shock resistance 30G, vibration 5G at 500 Hz.
• Shipping dimensions 90 x 87 x 40.4 mm, weight 210 grams.

Applications & Use Cases

The 1762-OB8 is ideal for discrete control tasks in manufacturing, packaging, and material handling. For example, in a conveyor system, its 8 outputs can actuate solenoids or indicator lights. Because of its solid-state design, it offers fast switching and long service life in high-cycle applications. Moreover, its compact DIN rail mounting simplifies integration into existing panels.

Installation & Setup

Mount the 1762-OB8 on a DIN rail and connect it to the MicroLogix 1200 backplane. Ensure the operating voltage is within 20.4-26.4V DC. The module draws 115 mA from the 5V backplane supply. For wiring, use appropriate gauge wire and follow the terminal layout in the user manual. The maximum power supply distance is 6 module lengths.

Maintenance & Reliability

Regular inspection of connections and environmental conditions helps maintain reliability. The module operates in 0 to 55°C and 5-95% non-condensing humidity. Its solid-state outputs have no moving parts, reducing wear. Periodic verification of output signals ensures consistent performance. For detailed maintenance, refer to the manufacturer's guidelines.

Compatibility & Integration

The 1762-OB8 is designed exclusively for the MicroLogix 1200 controller series. It integrates via the backplane and requires no additional communication modules. The module supports up to 8 outputs per unit, and multiple expansion modules can be added to increase I/O count.

FAQ about 1762-OB8

Q: What is the operating voltage range of the 1762-OB8?

A: The 1762-OB8 operates at 20.4 to 26.4V DC.

Q: How many outputs does the 1762-OB8 have?

A: It has 8 digital DC sourcing outputs.

Q: What is the maximum current per output on the 1762-OB8?

A: Each output can handle up to 0.5A, with a total module aggregate of 4A.

Q: What certifications does the 1762-OB8 hold?

A: It is UL, c-UL, and CE certified.

Q: Can the 1762-OB8 be used with MicroLogix 1000?

A: No, it is designed specifically for the MicroLogix 1200 series.

Product Support & Availability

The 1762-OB8 is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing and availability. We provide fast delivery and dedicated support for your automation needs.