Allen-Bradley 1794-OB16P FLEX I/O 16-Point Protected 24V DC Digital Output Module
Allen-Bradley 1794-OB16P is a FLEX I/O protected digital DC output module with 16 sourcing 24 V DC transistor outputs, each electronically protected against overcurrent and short-circuit faults.
Overview
The 1794-OB16P drives 16 sourcing loads from a 10 to 31.2 V DC window with a 0.5 V DC maximum on-state voltage drop. Each channel is electronically fused, withstands a 2 A surge for 50 ms (repeatable every 2 s), and a tripped point simply resets without replacing fuses. The module draws only 60 mA from the FlexBus and dissipates a maximum of 5.0 W at 31.2 V DC. It seats on 1794-TB2, TB3, TB3S, TB3K or TB3SK terminal bases.
Key Features
- 16 protected sourcing transistor outputs (24 V DC nominal)
- 0.5 A per channel maximum; 8.0 A total output current rating
- On-state window 10…31.2 V DC; 0.5 V DC maximum voltage drop
- Off-state leakage only 0.5 mA maximum; 2 A/50 ms surge withstand per channel
- FlexBus draw 60 mA @ 5 V DC; 5.0 W maximum power dissipation
- 16 yellow status indicators; DIN rail mount on a 1794 terminal base
- Open-style enclosure; 50 V continuous isolation
Technical Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Product Line | FLEX I/O (1794) |
| Series | FLEX I/O 1794 |
| Part Number / Catalog No. | 1794-OB16P |
| UPC | 612598179961 |
| Product Type | Flex I/O Digital DC Output Module |
| Number of Outputs | 16 sourcing, electronically protected |
| On-state Voltage | 10…31.2 V DC (nominal 24 V DC) |
| On-state Voltage Drop | 0.5 V DC maximum |
| Off-state Leakage Current | 0.5 mA maximum |
| Output Current Rating | 8.0 A; 500 mA per channel maximum |
| FlexBus Current | 60 mA @ 5 V DC |
| Power Dissipation | 5.0 W @ 31.2 V DC (17.0 BTU/hr) |
| Terminal Base | 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBKD |
| Isolation Voltage | 50 V continuous |
| Dimensions | 9.4 x 9.4 x 6.9 cm (3.7 x 3.7 x 2.7 in) |
| Weight | 0.56 lbs (0.26 kg) |
| Operating Temperature | 0 to 55 °C (32 to 131 °F) |
| Storage Temperature | -40 to 85 °C (-40 to 185 °F) |
Applications
The 1794-OB16P energizes 24 V DC field devices such as indicator lamps, solenoid actuated devices and relay coils. Electronic per-channel protection makes it a strong fit for packaging machines, assembly stations and distributed control panels where a shorted load must not take down a fuse or an entire output group.
Why Buy from Us
This module is available new in original factory packaging, fully tested and backed by a standard warranty of 1 year. We ship worldwide with careful anti-static packaging and fast dispatch. Quantity discounts and repair/exchange options are available on request.
Documents
| Resource | Title | Link |
|---|---|---|
| Publication | 1794-IN094 — FLEX I/O 16 Point Protected Output Modules (1794-OB16P) Installation Instructions (English) | 1794-in094_-en-p.pdf |
