Allen-Bradley 1719-OB2 Zone 2/Class I, Div 2 Mounting, 2 Point Digital Output Modul
$419.99
Out of stock
Request QuoteAllen-Bradley 1719-OB2 — The Allen-Bradley 1719-OB2 is a 2-channel intrinsically-safe digital output module from the 1719 Ex I/O family, designed for hazardous-area applications in Zone 0/1/20/21 field devices connected through a module mounted in Zone 2 or Class I, Division 2. Each channel provides a 23V open-loop output with a 258 Ω internal series resistor in single mode (or 129 Ω / 40 mA in parallel mode, doubling to 80 mA), driving intrinsically-safe solenoid valves, acoustic alarms, and LED indicators. Line-fault detection (open-circuit and short-circuit) is per-channel with optional test pulse every 2.5 s. The module is ATEX, IECEx, and UL certified for Class I Div 2 / Zone 2 use with connected Zone 0/20 field apparatus, and is hot-swappable when the area is non-hazardous.
| Product Family | Bulletin 1719 Ex I/O — Intrinsically Safe Distributed I/O |
| Module Type | 2-channel digital output, 23V open-loop |
| Channel Current (Single Mode) | 40 mA max; 80 mA in parallel mode |
| Internal Resistance | 258 Ω single mode, 129 Ω parallel mode |
| Response Time | 10 ms (bus-cycle dependent) |
| Line Fault Detection | Per-channel open-circuit / short-circuit |
| Dimensions | 16 × 100 × 103 mm (0.63 × 3.9 × 4 in) |
| Weight | 150 g (5.29 oz) |
Description
Allen-Bradley 1719-OB2
The Allen-Bradley 1719-OB2 is a 2-channel intrinsically-safe digital output module from the 1719 Ex I/O family, designed for hazardous-area applications in Zone 0/1/20/21 field devices connected through a module mounted in Zone 2 or Class I, Division 2. Each channel provides a 23V open-loop output with a 258 Ω internal series resistor in single mode (or 129 Ω / 40 mA in parallel mode, doubling to 80 mA), driving intrinsically-safe solenoid valves, acoustic alarms, and LED indicators. Line-fault detection (open-circuit and short-circuit) is per-channel with optional test pulse every 2.5 s. The module is ATEX, IECEx, and UL certified for Class I Div 2 / Zone 2 use with connected Zone 0/20 field apparatus, and is hot-swappable when the area is non-hazardous.
| Module Overview | |
|---|---|
| Catalog Number | 1719-OB2 |
| Product Family | Bulletin 1719 Ex I/O Digital Output |
| Output Type | Intrinsically safe, 23V open-loop |
| Channels | 2 |
| Mounting | Backplane (1719-A8 / A22 / A24) — vertical or horizontal |
| Location Rating | Zone 2 / Class I, Division 2 (module position) |
| Field-Device Rating | Zone 0 / 20 / Class I Division 1 intrinsically-safe connected apparatus |
| Electrical — Output | |
|---|---|
| Open-Loop Voltage (Us) | 23V |
| Current Limit (Imax) | 40 mA (single mode); 80 mA (parallel mode) |
| Internal Resistance (Ri) | 258 Ω (single mode); 129 Ω (parallel mode) |
| Suitable Field Devices | Solenoid valves, acoustic alarms, LED indicators |
| Connection | Ch I: terminals 1+, 4/5/6/8-; Ch II: 7+, 4/5/6/8- |
| Diagnostics & Line Fault Detection | |
|---|---|
| LFD — Short-Circuit Threshold | <50 Ω |
| LFD — Open-Circuit Threshold | >10 kΩ |
| LFD — On/Off per Channel | Configurable via Add-on Profile |
| LFD — Test Pulse (When Off) | Valve pulsed on for 5 ms every 2.5 s |
| Positive/Negative Logic | Selectable |
| Self-Monitoring | Permanent |
| Electrical — Supply / Wiring | |
|---|---|
| Module Supply | Backplane bus — use with 1719-PSDC DC power supply only |
| Power Dissipation | 2 W |
| Power Consumption | 3 W |
| Wire Type | Shielded |
| Wire Size | 0.14–1.5 mm² (26–16 AWG) |
| Terminal Screw Torque | 0.22–0.25 N·m (1.95–2.21 lb·in) |
| Indicators & Controls | |
|---|---|
| Power LED (P) | Green — supply present |
| Diagnostic LED (I) | Red = module fault, red flashing = comm error, white flashing = awaiting parameters |
| Channel Status LEDs (1, 2) | Red = line fault (break/short); yellow = output state (0/1) |
| Mode LED (M) | White = parallel output mode |
| Mechanical Coding | Front-socket 1719-CP coding pins (optional, per 1719-IN001) |
| Physical / Mechanical | |
|---|---|
| Dimensions (W × H × D) | 16 × 100 × 103 mm (0.63 × 3.9 × 4 in.) |
| Weight | 150 g (5.29 oz) |
| Degree of Protection | IP20 when mounted on backplane |
| Removable Front Connector | Yes — with screw flange (accessory) |
| Hot-Swappable | Yes — when the area is non-hazardous |
| Environmental | |
|---|---|
| Ambient Temperature | -20…+60 °C (-4…+140 °F) |
| Storage Temperature | -25…+85 °C (-13…+185 °F) |
| Relative Humidity | 95% non-condensing |
| Shock | Type I, 11 ms, 15 g, 18 shocks |
| Vibration | 10…150 Hz, ±0.075 mm/1 g, 10 cycles; 5…100 Hz, ±1 mm/0.7 g, 90 min at each resonance |
| Damaging Gas Resistance | ISA-S71.04-1985 severity level G3 |
| Explosion Protection (Ex) | |
|---|---|
| ATEX Certificate | EXA 16 ATEX 0025X |
| Group / Category / Protection | II 3(1) G Ex nA [ia Ga] IIC T4 Gc; II (1) D [Ex ia Da] IIIC |
| Output Voltage Uo | 24.2V |
| Output Current Io (Single) | 108 mA |
| Output Power Po (Single) | 654 mW |
| Output Uo / Io / Po (Parallel) | 24.2V / 216 mA / 1307 mW |
| Intrinsic Safety Isolation | Safe electrical isolation per EN 60079-11, 375V peak |
| Directive Conformity & Approvals | |
|---|---|
| EMC | EN 61326-1:2013 (Directive 2014/30/EU) |
| ATEX Directive | 2014/34/EU — EN 60079-0:2012+A11:2013, EN 60079-11:2012, EN 60079-15:2010 |
| IECEx | EXA 16.0010X |
| UL | File E106378 |
| NAMUR | NE 21 EMC standard |
Disclaimer: PLC Exchange is an independent reseller and is not an authorized distributor, affiliate, licensee, partner, or agent of Allen-Bradley / Rockwell Automation. All product information on this page is compiled from publicly-available manufacturer publications, technical data sheets, and catalog sources, each of which remains the copyright of its originating manufacturer. We make no representation or warranty, express or implied, regarding the accuracy, completeness, timeliness, or fitness for any particular purpose of the specifications or descriptions shown — content may contain errors, omissions, or out-of-date information. Product images are the property of their respective manufacturers, trademark owners, and source publications, and are displayed solely for identification purposes under the nominative fair use doctrine; images are representative and may depict a different configuration or catalog variant than the exact product listed. Purchasers should independently verify specifications against the current manufacturer publication before placing an order. All product names, trademarks, service marks, and registered trademarks are the property of their respective owners, and their use does not imply endorsement or affiliation.
Technical Notes for 1719-OB2
- Refer to the manufacturer's installation instructions for proper mounting, wiring, and configuration.
- Ensure compatibility with your existing system architecture before ordering.
- All 1719-OB2 units sold by PLC Exchange are tested and ship in original factory packaging.
- For application-specific questions or system compatibility verification, contact PLC Exchange technical support at [email protected] or 980-202-0882.
Alternative Part Numbers & Names for 1719-OB2
The 1719-OB2 by Allen-Bradley may also be found under the following alternative names, catalog numbers, or common search variations:
- 1719OB2
- Allen Bradley 1719-OB2
- Allen-Bradley 1719-OB2
- 1719 OB2
- 1719/OB2
All variations refer to the same Allen-Bradley product. If you are unsure whether this is the correct part for your application, contact our team for assistance.
Additional information
| Weight | 0.33 lbs |
|---|---|
| Dimensions | 4.1 × 0.6 × 3.9 in |
| warranty | 2.5 Year PLC Exchange Warranty, 30 Days worry-free return from delivery |
| upc | 889508013312 |
| mpn | 1719-OB2 |
| manufacturer | Allen-Bradley |
| condition | Original Packaging |
Dimensions & Weight for 1719-OB2
| Shipping Dimensions | |
|---|---|
| Weight | 0.33 lbs |
| Length | 4.1 in |
| Width | 0.6 in |
| Height | 3.9 in |
| Box Dimensions (L×W×H) | 4.1 × 0.6 × 3.9 in |
Dimensions shown are for the shipping package. For module-level mechanical dimensions, refer to the manufacturer datasheet.
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Frequently Asked Questions
Where can I find the technical datasheet for the 1719-OB2?
The official manufacturer datasheet is available for download on the 1719-OB2 product page at PLC Exchange. Look for the Tech Data PDF link in the product description.
Does the 1719-OB2 include a warranty?
Yes. Every 1719-OB2 sold by PLC Exchange includes a 2.5-year warranty (30 months, full replacement). Details: https://plcexchange.net/warranty-information/
What is the return policy for the 1719-OB2?
PLC Exchange offers a 30-day worry-free return policy. Eligibility and details: https://plcexchange.net/return-policy/
When will my 1719-OB2 ship?
In-stock orders placed before 4 PM ET ship the same business day via free UPS Ground. Expedited options (Next Day Air, 2nd Day Air) are available at checkout.
Who manufactures the 1719-OB2?
The 1719-OB2 is manufactured by Allen-Bradley. PLC Exchange is an independent reseller specializing in Allen-Bradley industrial automation products.
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