1762-OB32T | Allen-Bradley Source Output Module Supplier

What Is the 1762-OB32T?

When your application demands high-density DC output control, the 1762-OB32T from Allen-Bradley provides a robust solution. Part of the MicroLogix series, this solid-state source output module features thirty-two (32) channels arranged in two (2) isolated output groups of sixteen (16) channels each. It operates with a nominal output voltage of 24VDC and an output voltage range of 10.2-26.4 VDC, making it suitable for energizing indicating lights, solenoid actuated devices, and small DC motors.

Key Features & Technical Specs

• Outputs: 32 solid-state outputs in two groups of 16 channels per group.
• Output current per channel: 0.5 A at 60 °C (140 °F).
• Output current per group: 2.0 A at 60 °C (140 °F).
• Output current per module: 4.0 A at 60 °C (140 °F).
• Surge current: 2.0 A, repeatable every 2 s at 60 °C for 10 ms.
• Minimum on-state current: 1 mA.
• Heat dissipation: 3.4 Watts.
• Wire size: 22, 24, and 26 AWG.

One distinctive spec is the surge current rating of 2.0 A, which allows the module to handle momentary inrush loads without damage, reducing nuisance failures in demanding industrial environments.

Applications & Use Cases

In manufacturing lines, the 1762-OB32T reliably controls solenoid valves and indicator lights. For example, in a packaging system, its 32 outputs can drive multiple actuators simultaneously, while the isolated groups prevent cross-talk between different machine sections. Additionally, its solid-state design ensures silent operation and long service life in continuous-duty applications.

Installation & Setup

Mount the 1762-OB32T in an enclosure with a flame spread rating of 5VA, V2, V1, V0 (or equivalent) to minimize fire risk. Use wire sizes 22, 24, or 26 AWG for field wiring. The module supports source wiring; ensure the load is connected between the output and the DC common. For detailed wiring diagrams, refer to the official Allen-Bradley installation manual.

Maintenance & Reliability

Regularly inspect the module for dust accumulation and verify that the enclosure remains sealed against moisture. Because the module dissipates 3.4 Watts, ensure adequate ventilation to keep ambient temperature below 60 °C. Periodically check output current per channel does not exceed 0.5 A to prevent thermal stress.

Compatibility & Integration

The 1762-OB32T is designed for use with MicroLogix controllers. It integrates seamlessly into existing Allen-Bradley control systems, leveraging the same backplane communication protocol. For system expansion, multiple modules can be added to increase output capacity.

FAQs about 1762-OB32T

Q: What is the maximum output current per channel for the 1762-OB32T?

A: The maximum continuous output current per channel is 0.5 A at 60 °C (140 °F).

Q: How many output groups does the 1762-OB32T have?

A: It has two (2) isolated output groups, each with sixteen (16) channels.

Q: What is the surge current rating of the 1762-OB32T?

A: The surge current is 2.0 A, repeatable every 2 seconds at 60 °C for 10 ms.

Q: What wire sizes are compatible with the 1762-OB32T?

A: The module accepts 22, 24, and 26 AWG wire.

Q: What is the heat dissipation of the 1762-OB32T?

A: The module dissipates 3.4 Watts of heat.

Product Support & Availability

The 1762-OB32T is in stock and ready to ship from Petro Auto Tech. Contact our team for current pricing and lead times. Please verify lifecycle status and availability with Petro Auto Tech before ordering.