Description
Allen-Bradley 1756-OH8I: High-Voltage Isolated Output Module
Power up with the 1756-OH8I – built for high-voltage applications. This robust module delivers 8 individually isolated outputs at 120V DC. It handles tough industrial environments with ease. Perfect for heavy-duty control systems.
Need high-voltage specifications? Download our complete guide:
Technical Specifications
Brand & Model: Allen-Bradley 1756-OH8I
Type: 8-Point Isolated Output Module
Voltage Rating: 120V DC Sink/Source
Operating Range: 90-146V DC
Current per Point: 2.0A @ 60°C
Total Module Current: 8.0A @ 60°C
Response Time: 2ms maximum
Isolation Rating: 250V between outputs/backplane
Voltage Drop: 2.0V DC @ 2A
Leakage Current: 1.0mA per point
Backplane Power: 5.1V @ 210mA
Power Dissipation: 3.3 Watts maximum
Surge Current: 4A per point
Terminal Blocks: 1756-TBCH, 1756-TBS6H
Operating Temp: 0°C to 60°C
Expert FAQs
Q: What voltage does the 1756-OH8I handle?
A: It operates at 120V DC with a range of 90-146V DC for flexible application.
Q: Are the outputs truly isolated?
A: Yes, each output is individually isolated for maximum safety and noise immunity.
Q: What is the surge current capability?
A: Each point can handle 4A surge current for demanding startup conditions.
Q: What environmental conditions can it handle?
A: It operates in 0-60°C temperatures and withstands 2G vibration and 20G shock.
Q: What wiring is required?
A: Use compatible terminal blocks 1756-TBCH or 1756-TBS6H for proper connections.
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