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Overview
The Allen-Bradley 1734-TOPS is a one-piece terminal base unit designed for Rockwell Automation’s POINT I/O series. It combines a spring clamp wiring interface with a mechanical mounting base for DIN rail installation. The 1734-TOPS provides secure field-to-module connectivity and supports hot-swappable I/O module replacement without system interruption (RIUP—Removal and Insertion Under Power).
Key Features
- 8-Point Spring Clamp Terminals: Tool-less, spring-clamp wire connections for fast field termination and easy maintenance
- Hot-Swap Capable (RIUP): Replace modules while the system remains live, minimizing downtime
- Mechanical Keying: Color-coded orange keying prevents incorrect module insertion and improves installation accuracy
- DIN Rail Mount: Compact 15 mm DIN rail mounting for high-density panel layouts
- Integrated Field Power Distribution: Built-in power bus for seamless signal and power routing to connected POINT I/O modules
- One-Piece Design: Eliminates loose components and simplifies assembly
Technical Specifications
- Catalog Number: 1734-TOPS
- Series: POINT I/O (Rockwell Automation)
- Terminal Type: Spring clamp (8-point)
- Wire Size: 0.25–1.5 mm² (24–16 AWG)
- Maximum Terminal Voltage: 300 V
- Maximum Terminal Current: 8 A
- Field Power Bus Voltage: 120/240 V AC or 28.8 V DC
- Isolation Voltage Rating: 240 V continuous
- Insulation Type: Reinforced
- Dimensions (H×W×D): 49 × 12 × 168 mm (1.93 × 0.47 × 6.61 in.)
- Weight: 55.68 g (1.96 oz)
- Operating Temperature: −20°C to +55°C (−4°F to +131°F)
- Mounting: 15 mm DIN Rail (EN 50022)
- Certifications: UL, CE, CSA, CUL, C-TICK, CCC, GOST, KC, MARINE, RoHS
- Condition: New in Box
Typical Applications
- Distributed I/O systems in machine control and automation
- Modular panel mounting for scalable control solutions
- Field wiring termination in harsh or high-vibration industrial environments
- Integration with CompactLogix, ControlLogix, and other Rockwell platforms via POINT I/O gateway modules
- High-density enclosure layouts requiring compact DIN rail space
Compatibility & Replacements
Compatible With
- All Allen-Bradley POINT I/O digital, analog, relay, and specialty I/O modules (1734 series)
- PointBus backplane interface for module communication
- Rockwell Automation EtherNet/IP, ControlNet, and DeviceNet POINT I/O gateways
- CompactLogix and ControlLogix PLC systems (via appropriate gateway)
- Studio 5000 Logix Designer engineering software (module configuration)
- EN 50022 standard DIN rail mounting systems
Replaces / Drop-In Replacement For
- 1734-TOPS units from earlier production batches or returns
- Direct replacement when upgrading from screw clamp (1734-TOP) to spring clamp design for faster field termination
Works With
- PointBus protocol (integrated backplane communication)
- Studio 5000 Logix Designer and Allen-Bradley programming tools
- EtherNet/IP, ControlNet, and DeviceNet networks (via POINT I/O gateway modules)
- Auto Device Replacement (ADR) feature for simplified hot-swap and module recovery
- Integrated field power distribution (120/240 V AC or 28.8 V DC)
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