Purchase now: Allen-Bradley 1769-OW16 Compact High-Density Relay Output
Atlantechdrives provides you the 1769-OW16, a highly versatile 16-point digital relay output module designed for the CompactLogix and MicroLogix 1500 systems. This module is the industry standard for interfacing a PLC with a wide variety of field devices that operate on different voltages, providing mechanical isolation and high current switching capabilities in a single expansion slot.
- Outputs: 16 Normally Open (N.O.) Relays
- Voltage Range: 5-265V AC / 5-125V DC
- Current Rating: 2.5A per point (max 20A per module)
- Groups: 2 isolated groups of 8 points each
- Backplane Current: 205 mA @ 5.1V / 180 mA @ 24V
- Response Time: 10ms (ON/OFF typical)
Technical Architecture: Hybrid Voltage Control and Mechanical Isolation
Get now the 1769-OW16 to optimize your panel design. This module is engineered to provide maximum flexibility, as its mechanical contacts allow for the switching of both AC and DC loads on the same module. The 1769-OW16 features two separate commons, allowing you to control two different voltage branches (e.g., 120V AC for solenoids and 24V DC for indicators) simultaneously. This technical superiority eliminates the need for multiple specialized modules and interposing relays. Each relay is opto-isolated from the CompactBus, ensuring that electrical surges on the field side do not migrate to the sensitive CPU backplane. When you secure the 1769-OW16, you are investing in a robust output layer that provides deterministic switching for heavy industrial actuators, motor starters, and lighting circuits.
Installation Advice: Protecting Relay Life and Arc Suppression
When installing the 1769-OW16, protecting the mechanical contacts from inductive «kickback» is vital for long-term reliability. We strongly recommend using external surge suppression: an RC snubber for AC loads or a flyback diode for DC loads. Without suppression, the electrical arcing during contact opening will eventually weld the contacts or cause carbon buildup, leading to intermittent failures. Additionally, ensure that the total current draw of the 16 points does not exceed the 20A module limit. Use 14-22 AWG copper wire and ensure the terminal screws are torqued correctly to prevent resistance heating. Sourcing your 1769-OW16 from Atlantechdrives ensures you receive a unit with healthy, low-cycle internal relays for maximum service life.
Maintenance and Hardware Diagnostics
The 1769-OW16 features 16 amber status LEDs that indicate when the internal relay coil is energized. Maintenance protocols should include a periodic «click test» to verify mechanical movement. If an LED is ON but the field device is not receiving power, it usually indicates a blown external fuse or a worn-out contact. Sourcing an authentic 1769-OW16 from Atlantechdrives guarantees the hardware quality required for 24/7 industrial uptime.
FAQs
Q: Can I mix AC and DC on the 1769-OW16?
A: Yes, as long as you use the two isolated groups (8 points each) for the different voltage types.
Q: Does it support «Normally Closed» (N.C.) contacts?
A: No, the 1769-OW16 provides only Normally Open (N.O.) contacts.
Do you need more references from this brand? Explore our full catalog of Allen-Bradley here.
This 16-point relay output module allows for universal load switching; pair it with a 1769-IQ32 discrete input module for full system expansion.
