Three Channel Input/Output
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Features
The Three Channel Input/Output Unit provides three voltage-free, single pole, changeover relay outputs and three monitored switch inputs.
- Supervises one or more normally open switches on each of the three inputs
- Loop-powered
- Capable of switching up to 30V at 1A on each of the three outputs
Specifications
| Operating voltage | 17–28V DC | |
|---|---|---|
| Maximum current consumption at 28V DC no protocol |
LED Enabled | |
| switch-on surge, max 150ms | 6.5mA | |
| quiescent, 20kΩ EOL fitted | 3mA | |
| Switch inputs closed | 6mA | |
| LED Disabled | ||
| switch-on surge, max 150ms | 6.5mA | |
| quiescent, 20kΩ EOL fitted | 3mA | |
| Switch inputs closed | 4mA | |
| Maximum continuous current | 1A | |
| Maximum switching current | 3A | |
| On resistance | 0.2Ω | |
| Switch input monitoring voltage (open-circuit condition) |
9–11V DC | |
| Maximum cable resistance | 50Ω | |
| Operating temperature | –20°C to +70°C | |
| Humidity (no condensation) | 0–95% | |
| IP rating | 54 | |
| Dimensions (L x B x H) | 250 mm x 175 mm x 75 mm | |
