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OVERVIEW
Official designation: Allen-Bradley 1797-OB4D (FLEX Ex I/O, Digital Output Module)
Role/Application: Provides 4 intrinsically safe sourcing outputs for controlling field devices in hazardous area applications.
KEY SPECS SUMMARY
Power: 9.5 Volts DC, 2.7 Watts dissipation
Interfaces / Ports: 1797-TB3 or 1797-TB3S terminals
Indicators: 4 yellow channel, 1 red fault, 1 green power LED
Operating Temp: Minus 20 to 70 degrees C
Platform / Compatibility: FLEX Ex system, DIN rail mount
Limit: Max 5000 Ohms load, 4 channels
Lifecycle: Active
FREQUENTLY ASKED QUESTIONS
Technical Specifications:
Q: What is the maximum intrinsically safe voltage output rating for each channel?
A: The module's maximum output voltage is 10.7 Volts DC.
Wiring & Installation:
Q: Which terminal bases are compatible with the 1797-OB4D module installation?
A: The module is compatible with the 1797-TB3 and 1797-TB3S terminal bases.
Troubleshooting & Compatibility:
Q: What is the maximum load resistance supported by each digital output channel?
A: Each output channel supports a maximum load resistance of 5000 Ohms.
Replacement & Upgrades:
Q: What is the official intrinsic safety zone and gas group rating for this module?
A: The official rating is Ex ia IIC or AEx ia IIC for hazardous area classification.
상품 정보 고시
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| Model Name | See this page for details |
| Certification or Licensing Information Required by Law | See this page for details |
| Country of Manufacture or Origin | See this page for details |
| Manufacturer | See this page for details |
| After-sales Service Contact or Customer Support Number | See this page for details |
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