Overview
Additional suppression becomes particularly important if the inductive device is in series with or parallel to hard contacts, such as push buttons or selector switches. Install the suppression device directly across the coil of the inductive device. Doing so reduces voltage transients caused by interrupting current and helps extend the lifespan of switch contacts.
Specification
| Attribute | Specification |
|---|---|
| Outputs | 8 (4 points per group) |
| Voltage Category | 100/240V AC |
| Operating Voltage Range | 85–265V AC, 47–63 Hz |
| Output Delay, On | 1/2 cycle |
| Output Delay, Off | 1/2 cycle |
| Current Draw @ 5.1V | 145 mA |
| Heat Dissipation, Max | 2.12 W |
| Off-State Leakage Current, Max | 2.0 mA @ 132V AC |
| On-State Current, Max | 10 mA |
| On-State Voltage Drop, Max | 1.5V peak @ 2 A |
| Current per Point, Max | 0.25 A @ 60 °C / 0.5 A @ 30 °C |
| Current per Module, Max | 2 A @ 60 °C / 4 A @ 30 °C |
| Surge Current | 10 A for 25 ms, repeatable every 2 s |
| Isolation Voltage | 1836V AC for 1 s or 2596V DC for 1 s (group-to-group); 265V AC working (basic insulation); 150V AC working (IEC Class II reinforced insulation) |
| Weight, Approx. | 280 g (0.61 lb) |
FAQ
Q: What is the maximum surge current the module can handle?
A: The 1769-OA8 can handle surge currents up to 2 A for 10 milliseconds, repeatable every 3 seconds, ensuring protection against transient spikes.
Q: How is the module mounted?
A: The 1769-OA8 can be mounted on a DIN rail or directly onto a panel, providing flexibility in installation.
Q: What is the power dissipation of the module?
A: The 1769-OA8 has a maximum power dissipation of 1.125 W, ensuring efficient operation without excessive heat generation.
Q: Can the module be used in hazardous locations?
A: The 1769-OA8 is designed for general industrial environments. For hazardous locations, consult the product datasheet for specific certifications and guidelines.
Manual/Datasheet PDF
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