Product Description
The 1790D-T0B16 is a 16 Sourcing Output module from the 1790D Series. It delivers 24V dc nonisolated outputs for DeviceNet base and expansion systems. This module provides reliable digital control with high-density I/O in a compact footprint. It is designed for industrial automation applications requiring robust field power distribution. The module supports up to 0.5 A per output with a total common current of 4.0 A. Its photocoupler isolation ensures 1250V ac rms between I/O and logic. This module is ideal for OEMs and system integrators.
Key Technical Data
| Brand | Allen-Bradley |
| Model | 1790D-T0B16 |
| Series | 1790D Series |
| Module Type | 16 Sourcing Output Base / Expansion |
| Outputs | 16 points, nonisolated, sourcing |
| On-state Voltage | 10V dc min, 24V nom, 28.8V max |
| On-state Current | 1 mA min per channel |
| Output Current Rating | 0.5 A max per output, 4.0 A per common |
| On-state Voltage Drop | 0.5V dc max |
| Off-state Leakage | 0.5 mA max |
| Output Delay (Off→On) | 0.5 ms max |
| Output Delay (On→Off) | 1.0 ms max |
| Indicators | 16 green status LEDs |
| Common Type | 8 points / 8 COM |
| Isolation | Photocoupler, 1250V ac rms |
| Field Power Supply | 24V dc nom (10…28.8V dc) |
| Power Dissipation (Base) | 1.2 W max @ 28.8V dc |
| Field Power Dissipation | 6 mA @ 28.8V dc per point |
| Wiring | Terminal block (M3.0), torque 7 lb-in max |
Temperature Range: -20°C to +60°C operating, -40°C to +85°C storage.
Environmental & Immunity: Meets IEC 61000-6-2 for industrial environments.
Installation & Compatibility
- Mounting: DIN-rail or panel mount (use copper conductors).
- Compatible with 1790D base and expansion racks.
- Supports DeviceNet communication protocols.
- Field power: 10-28.8V dc, logic isolated via photocoupler.
- Indicators provide real-time per-point status.
Diagnostics & Maintenance
- On-board LED indicators for quick fault detection.
- Output delay times (0.5 ms / 1.0 ms) enable precise timing.
- Terminal block with screw torque 7 lb-in ensures secure wiring.
- No special tools required for module replacement.
Typical Applications
- PLC output expansion for actuator control.
- Valve and solenoid driver modules.
- Conveyor system on/off control.
- Factory automation I/O islands.
- Packaging machinery discrete outputs.
Certifications & Standards
- CE marked, UL listed, and cUL recognized.
- RoHS compliant.
- Isolation: 1250V ac rms (photocoupler).
Package Contents
- 1790D-T0B16 module (base or expansion).
- Terminal block connector (M3.0).
- User manual quick start guide.
FAQ
Q: What is the maximum output current per common?
A: 4.0 A max.
Q: Is the module isolated from logic?
A: Yes, photocoupler isolation at 1250V ac rms.
Q: What is the on-state voltage drop?
A: 0.5V dc max.
Q: Can I use this module with 24V dc field power?
A: Yes, nominal is 24V dc (range 10-28.8V).
Why Buy From Oiltech Controls?
- Over 15 years of industrial automation spare parts expertise.
- Global shipping support with FedEx, UPS, DHL.
- All units are tested for functionality before shipment.
- 12-month warranty on every product.
- Support for obsolete control systems and legacy hardware.
- Refurbished options available with full testing.
For inquiries: info@oiltechcontrols.com or +86 158 8020 0923
Warranty: 12 months from date of purchase against manufacturing defects.
Shipping: FedEx, UPS, DHL – worldwide express delivery.
Copyright © 2026 Oiltech Controls Limited. All rights reserved.
Original Source: https://www.oiltechcontrols.com/
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