Allen-Bradley 1756-OB8 – Rugged 8-Channel DC Output Module
12-month warranty | Ships fast via FedEx/UPS/DHL | Industrial-grade durability
- ✅ 8 high-power DC outputs (2A per channel)
- ✅ Wide 10-30V DC operating range
- ✅ Ultra-fast 1ms response time
- ✅ Download installation guide (PDF)
Key Features
- 1756-OB8 delivers 8A total current (2A per point)
- Works with 12V/24V DC systems (10-30V range)
- 4A surge capacity for motor starts
- Dual output groups (4 channels each)
- Fits all ControlLogix 1756 chassis
Technical Specifications
| Brand/Model: | Allen-Bradley 1756-OB8/A |
| Output Type: | Sourcing DC |
| Voltage Range: | 10-30V DC |
| Response Time: | 1ms ON / 2ms OFF |
| Surge Capacity: | 4A for 10ms (per point) |
| Terminal Blocks: | 1756-TBNH or 1756-TBSH |
Installation Guide
- Install in any slot (except slot 0)
- Attach 20-pin RTB (sold separately)
- Connect DC power (10-30V)
- Configure in RSLogix/Studio 5000
Warranty
12-month coverage against defects. Easy replacement process.
Expert FAQs
Q: Can I use this for solenoid valves?
A: Yes – handles 2A continuous (4A surge).
Q: What’s the minimum voltage needed?
A: 10V DC to activate outputs.
Q: Does it work with 48V systems?
A: No – max 30V DC only.
Q: How many modules per chassis?
A: Depends on power supply capacity.
Q: Is optical isolation included?
A: No – use interposing relays for high-voltage isolation.
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