Product Description
Product Overview
- Manufacturer: Allen-Bradley
- Model/Part Number: 1769-OB32T
- Model Type: CMPLX 32-Point 24VDC Terminated Digital Output Module
Key Features
The Allen-Bradley 1769-OB32T is a 32-point digital output module designed for use in CompactLogix and MicroLogix 1500 PLC systems. This 24V DC source output module is ideal for applications requiring high-density output capability with fast response times and isolated group configurations.
With two isolated groups of 16 outputs, it enhances control system reliability and reduces electrical noise interference in industrial automation applications.
Technical Specifications
General Specifications
| Attribute | Specification |
|---|---|
| Outputs | 32 Terminated (16 points per group) |
| Voltage Category | 24V DC Source |
| Operating Voltage Range | 10.2…26.4V DC |
| Output Delay (On) | 0.5 ms |
| Output Delay (Off) | 4.0 ms |
| Current Draw @ 5.1V | 220 mA |
| Heat Dissipation (Max) | 4.76 W |
| Off-State Leakage Current (Max) | 0.1 mA @ 26.4V DC |
| On-State Current (Min) | 1.0 mA |
| On-State Voltage Drop (Max) | 0.3V DC @ 0.5 A |
| Current Per Point (Max) | 0.5 A |
| Current Per Module (Max) | 4.0 A |
| Surge Current (Max) | 2.0 A for 10 ms (Repeatable every 2 s) |
| Isolation Voltage | 1200V AC for 2 s or 1697V DC for 2 s (Output point to bus) |
| Working Voltage | 75V DC (IEC Class 2 reinforced insulation) |
| Weight (Approx.) | 230 g (0.51 lb) |
| Dimensions (HxWxD) | 118 x 35 x 87 mm (4.65 x 1.38 x 3.43 in.) |
| Height with Mounting Tabs | 138 mm (5.43 in.) |
| Slot Width | 1 |
| Module Location | DIN Rail or Panel Mount |
| Power Supply | 1769-PA2, 1769-PB2, 1769-PA4, 1769-PB4 |
| Power Supply Distance Rating | 8 Modules |
| Terminal Screw Torque | 0.68 N•m (6 lb•in) |
| Retaining Screw Torque | 0.46 N•m (4.1 lb•in) |
| Wire Size | 22–14 AWG (Solid), 22–16 AWG (Stranded) |
| Wire Type | Cu-90°C (194°F) |
| Replacement Connector | 1746-N3 (1 Connector, 40 Terminals) |
| Vendor ID Code | 1 |
| Product Type Code | 7 |
| Product Code | 79 |
| Enclosure Type Rating | None (Open-Style) |
Applications
The 1769-OB32T digital output module is an excellent choice for industrial automation systems where multiple 24V DC outputs are required. Typical applications include:
- Machine automation – Controlling actuators, solenoids, and relays in high-speed production lines.
- Process control systems – Managing outputs in chemical, food, and beverage processing plants.
- Material handling – Operating conveyors, motors, and sorting mechanisms.
- Building automation – Handling lighting, HVAC, and access control systems.
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