The Allen-Bradley 1794-OB32P is a high-performance digital output module engineered for demanding industrial control applications. Part of the Flex I/O family, this module delivers 32 solid-state outputs in a single, compact package, significantly reducing panel space while maintaining reliability. Each output channel supports 24V DC operation with both sink and source configurations, making it versatile for driving solenoids, indicator lights, motor starters, and relays. The module features advanced diagnostics, including open-wire detection and output status feedback, ensuring rapid fault identification. Its rugged construction meets IP20 and NEMA 250 Type 1 standards, and it is certified for use in hazardous environments (Class I, Division 2). For seamless integration, the 1794-OB32P communicates via the Flex I/O backplane with ControlLogix, CompactLogix, and other Rockwell Automation controllers, supporting both local and remote I/O architectures. Below are the detailed technical specifications.
| Parameter |
Specification |
| Product Type |
Digital Output Module |
| Series |
Flex I/O |
| Part Number |
1794-OB32P |
| Output Count |
32 points |
| Output Type |
Solid state (sink/source configurable) |
| Output Voltage |
24V DC nominal (10-30V DC range) |
| Output Current per Point |
0.5 A maximum |
| Total Current per Module |
8 A maximum (all outputs on) |
| Short-Circuit Protection |
Yes, per point (electronic) |
| Overcurrent Protection |
Yes, per point (1.0 A typical trip) |
| Open-Wire Detection |
Yes, per point (software configurable) |
| Output Status Feedback |
Yes, via backplane |
| Isolation Voltage |
50V (continuous), basic insulation type |
| Power Supply Voltage |
24V DC (module bus) |
| Power Consumption |
5.5 W typical (all outputs on) |
| Backplane Current |
150 mA at 5V DC |
| Operating Temperature |
-20°C to +60°C (-4°F to +140°F) |
| Storage Temperature |
-40°C to +85°C (-40°F to +185°F) |
| Relative Humidity |
5% to 95% non-condensing |
| Vibration Resistance |
2 g Standard Models 10-500 Hz (operating) |
| Shock Resistance |
15 g (11 ms duration) |
| Enclosure Type |
IP20 (NEMA 250 Type 1) |
| Hazardous Location Rating |
Class I, Division 2, Groups A, B, C, D |
| Communication Protocol |
Flex I/O backplane (remote I/O or Ethernet via adapter) |
| Compatible Controllers |
ControlLogix, CompactLogix, PLC-5, SLC 500 (with adapter) |
| Dimensions (H x W x D) |
87 x 94 x 69 mm (3.43 x 3.70 x 2.72 in) |
| Weight |
0.23 kg (0.51 lb) |
| Wiring Style |
Removable terminal block (screw-type) |
| Certifications |
CE, UL, CSA, ATEX (Zone 2) |
| LED Indicators |
24 per output (status), 1 module status (green/red) |
| MTBF |
1,200,000 hours (calculated per MIL-HDBK-217F) |
What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22