Product Overview
In high-current DC output applications, the Allen-Bradley 1746-OBP8 delivers dependable switching for demanding industrial loads. Part of the SLC 500 family, this Digital DC Output Module provides eight sourcing outputs with a voltage range of 20.4–26.4 VDC. Designed for programmable controllers, the 1746-OBP8 is a fast-turn-off module that suits applications requiring precise control and rapid response.
Technical Specifications
The 1746-OBP8 integrates seamlessly into SLC 500 systems, offering robust performance. Key parameters include:
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Outputs: 8 (sourcing)
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Voltage Range: 20.4–26.4 VDC
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Current per Output: 2.0 A at 60°C
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Current per Module: 8.0 A at 0–60°C
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Backplane Current (5V): 0.135 A
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Signal Delay: ON = 1.0 ms, OFF = 2.0 ms
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Operating Temperature: 0–60°C
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Storage Temperature: -40–85°C
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Isolation Voltage: 1500 V
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Recommended Wire: Max 2 mm² (14 AWG)
Industry Applications
The 1746-OBP8 excels in high-current output applications across automotive, packaging, and material handling industries. Use it to energize pilot lamps, alarm annunciators, horns, solenoids, and motorized actuators. For AC loads, install interposing relays to match coil voltage and provide isolation, extending module protection.
Installation & Setup
Mount the 1746-OBP8 in a single slot of an SLC 500 chassis. It supports fixed or modular hardware styles. Ensure backplane power is supplied and connect an external DC power source for output power. Use 14 AWG wire for signal connections and follow standard wiring practices to avoid noise.
Maintenance & Reliability
With no electronic protection, the 1746-OBP8 requires proper load management to prevent overcurrent. Its e-fuse LED indicators allow real-time status monitoring. Operating humidity of 5–95% non-condensing and NEMA ICS 2-230 noise immunity ensure stable performance. Regularly inspect wiring and environmental conditions to extend service life.
Compatibility & Integration
The 1746-OBP8 is compatible with SLC 500 processors in stand-alone, expanded, or remote I/O configurations. It integrates with both fixed and modular SLC 500 platforms, occupying a single chassis slot. Ensure your system provides the required backplane power and external DC supply.
Buying Guide
Before purchasing, verify your system's voltage and current requirements against the 1746-OBP8 specifications. Confirm compatibility with your SLC 500 chassis and processor. PLC Source PRO offers genuine Allen-Bradley spares, ensuring reliable replacement parts for your automation needs.