The Allen-Bradley 1769-OB32 is a high-density digital DC output module designed for the CompactLogix platform. It provides 32 solid-state sourcing outputs for controlling 24 VDC industrial loads such as solenoids, motor starters, relays, and indicator lamps.
Its compact 32-point design minimizes I/O chassis space while delivering fast, reliable switching performance for complex automation systems.
| Parameter | Specification |
|---|---|
| Module Type | Digital Solid-State DC Output |
| Output Configuration | 32 Channels, Source (PNP) |
| Operating Voltage | 20.4 to 26.4 V DC |
| Continuous Current per Point | 0.5 A @ 30 °C (0.25 A @ 60 °C) |
| Maximum Current per Module | 8.0 A @ 30 °C |
| Surge Current | 2.0 A for 10 ms (every 2 s) |
| Off-State Leakage | ≤ 1.0 mA @ 26.4 V DC |
| On-State Voltage Drop | ≤ 1.0 V DC @ 0.5 A |
| Turn-On Delay | 0.1 ms |
| Turn-Off Delay | 1.0 ms |
| Power Dissipation | 4.54 W (Total) |
| Backplane Current Draw | 450 mA @ 5 V DC |
| Isolation Voltage | 75 V continuous, tested at 1200 V AC for 60 s |
| Terminal Blocks | 1769-RTBN18, 1769-RTP32 |
The 1769-OB32 is well suited for high-I/O-count discrete control where panel space is limited, including:
Pilot light and indicator arrays
Pneumatic valve manifolds
Interposing relays
Distributed and standalone CompactLogix or MicroLogix 1500 systems
Does the 1769-OB32 support electronic fusing?
No. The module does not include internal electronic fusing. External fuses should be installed per output point or on the common supply line to protect against short circuits and overcurrent conditions.
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