1790-0W8X 8-Relay Output Expansion Module
The 1790-0W8X module delivers reliable relay-based output expansion for PLC systems.
It supports precise switching control with stable electrical isolation.
This unit ensures consistent performance in demanding automation environments.
Its compact structure simplifies integration into control panels.
Designed for durability, it handles both resistive and inductive loads efficiently.
Relay Output Characteristics
- 8 Form A normally open relay outputs
- Single pole single throw configuration
- 2.0 A switching capacity per channel
- Supports 5–24V DC and 30V AC loads
- Minimum load requirement: 100 µA
- Low contact resistance ensures efficient conduction
Switching Performance
- Fast response time within 10 ms
- Stable ON/OFF switching behavior
- Maximum voltage drop: 0.5V at full load
- Low leakage current improves accuracy
- Designed for frequent switching operations
Durability & Reliability
- Contact life up to 300,000 cycles for resistive loads
- Supports inductive loads up to 100,000 cycles
- Photocoupler isolation protects control circuits
- Isolation voltage rated at 1250V AC
- Engineered for long-term industrial use
Electrical & Power Specifications
- Nominal field supply: 24V DC
- Operating voltage range: 19.2–28.8V DC
- Low power dissipation per channel
- Stable current handling under rated load
- Optimized for energy-efficient operation
Interface & Installation
- 37-pin D-shell connector for secure wiring
- One common terminal per output channel
- Clear LED indicators for status monitoring
- Compact design reduces panel space usage
- Quick installation for system integration
Oiltech Controls’s Insight
- This module suits PLC systems requiring reliable relay outputs
- Ideal for controlling valves, motors, and actuators
- Performs well in industrial automation environments
- Recommended for applications needing electrical isolation
- Ensures stable switching in high-frequency operations
Typical Equipment Applications
- Industrial automation control panels
- Packaging and assembly machinery
- Process control systems
- Material handling equipment
- Discrete control applications
Professional FAQ
- How to select relay output modules for PLC systems?
- Consider load type, voltage rating, and switching frequency.
- Can this module handle inductive loads?
- Yes, but lifespan reduces compared to resistive loads.
- What ensures safe signal isolation?
- Built-in photocoupler isolation protects control circuits.
- What should be checked before wiring?
- Verify connector pinout and load compatibility.
- How to improve relay lifespan?
- Use proper load ratings and avoid excessive switching frequency.
- What warranty is provided?
- Includes 12-month warranty after delivery.
- How fast is shipping after order confirmation?
- Orders dispatch within 24–48 hours.
- Which logistics services are available?
- FedEx, UPS, and DHL provide global delivery options.
Order & Contact
- Email: info@oiltechcontrols.com
- WhatsApp: +86 158 8020 0923
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