1769-OV32T Allen-Bradley 32-Channel Sinking Transistor Output
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Estimated Delivery:Jul 23 - Jul 27
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Free Shipping & Returns: On all orders over $60
1769-OV32T Allen-Bradley 32-Channel Sinking Transistor Output
Product Overview
The Allen-Bradley 1769-OV32T delivers high-density, solid-state digital control for CompactLogix and MicroLogix 1500 platforms. This module provides 32 independent sinking (NPN) output channels, specifically engineered for high-I/O applications where cabinet space is limited. The module organizes its 32 channels into two isolated groups of 16, allowing engineers to manage separate power circuits or multiple voltage sources within a single unit. We supply this module as 100% Brand New original factory stock, ensuring peak performance for precision switching of DC industrial loads.
Technical Specifications
| Feature | Specification |
| Catalog Number | 1769-OV32T |
| Output Type | Solid-state Transistor (Sinking/NPN) |
| Number of Channels | 32 Outputs (2 Groups of 16) |
| Operating Voltage Range | 10.2V to 26.4V DC |
| Continuous Current (Point) | 0.5 A @ 30°C (0.25 A @ 60°C) |
| Max Module Current | 8.0 A Total (4.0 A per group @ 30°C) |
| Signal Delay (Typical) | Turn-on: 0.1 ms / Turn-off: 1.0 ms |
| Backplane Current Draw | 450 mA @ 5.1V DC |
| On-State Voltage Drop | Max 1.0V DC @ 0.5 A |
| Isolation Voltage | 75V (Continuous), 1200V AC (Reinforced) |
| Power Supply Distance | Within 8 slots of the power supply |
| Terminal Block | 1769-RTBN18 or 1769-RTP32 |
| Dimensions | 118 × 35 × 87 mm |
Engineering Advantages
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High-Density Output Concentration: The 1769-OV32T packs 32 sinking outputs into a standard Compact I/O footprint. This concentration allows designers to reduce the number of required I/O modules, significantly lowering both rack hardware costs and total cabinet dimensions.
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Circuit Isolation and Safety: The dual-group architecture (16 channels per group) facilitates the separation of distinct field power circuits. This isolation prevents cross-circuit interference and allows for localized emergency stop or power-down configurations within a single module.
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Ultra-Fast Signal Processing: With a turn-on delay of only 0.1 ms, this module supports high-speed automated packaging, high-frequency pulse applications, and rapid-response assembly line logic where timing is critical.
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Optical Backplane Protection: Robust optical isolation separates the 24V DC field-side transients from the controller's internal backplane. This barrier protects the CPU and other sensitive modules from electrical noise, surges, and field-side wiring faults.
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Thermal Reliability: The module manages heat effectively, providing 0.5 A per point at 30°C. Even in high-temperature industrial environments reaching 60°C, the module delivers 0.25 A per point, maintaining reliable switching for valves, solenoids, and relays.
FAQs
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What is the difference between Sinking (NPN) and Sourcing (PNP) modules?
The 1769-OV32T is a Sinking (NPN) module, meaning it completes the circuit to ground (0V) for the field load. If your field devices require the module to provide the positive (+) voltage, you should select the Sourcing (PNP) version, such as the 1769-OB32.
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Can I use the 1769-OV32T with different voltages for each group?
Yes. Because the two groups of 16 channels are isolated from each other, you can apply a 12V DC source to Group 1 and a 24V DC source to Group 2, provided both stay within the 10.2V to 26.4V DC operating range.
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Is this a genuine Allen-Bradley product?
Yes. We sell this 1769-OV32T as 100% Brand New original equipment from Rockwell Automation. It comes in factory packaging and meets all OEM specifications.
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What is the maximum distance the module can be from the power supply?
The 1769-OV32T has a power supply distance rating of 8 modules. You must install it within 8 slots of a 1769 power supply to ensure consistent voltage levels across the backplane.
