The Allen-Bradley 1440-TB-G is a voted EODS (Electronic Overspeed Detection System) terminal base from the Bulletin 1440 series. This heavy-duty, specialized termination platform is engineered to support the XM-442 (1440-REX03-04RG) Voted Relay Module, providing the rugged physical mounting and high-integrity terminal connections required to execute critical multi-channel voting logic safety architectures.
Technical Details
- Part Number: 1440-TB-G
- Manufacturer: Allen-Bradley
- Series: Bulletin 1440 (XM Series)
- Type: Voted EODS Terminal Base
- Supported Modules: XM-442 (1440-REX03-04RG) Voted EODS Relay Module
- Mounting Type: Standard 35mm DIN rail mount
- Termination Style: Rugged screw clamp terminals
- Operating Temperature: -20 to 65 °C (-4 to 149 °F)
Key Features
- Supports full hot-swapping functionality, enabling seamless replacement of the host XM-442 module without breaking critical trip circuits or downstream field connections.
- Engineered with enhanced isolation and robust spacing to safely manage high-reliability emergency trip and shutdown currents.
- Includes native side-plane connectors to automatically route power and internal communication buses to adjacent XM modules on the DIN rail.
- Features highly legible, permanent terminal markings to reduce wiring errors and simplify commission troubleshooting.
Applications
- Field wiring termination and mounting for XM-442 triple-redundant overspeed trip relay structures.
- API 670 and API 612 compliant emergency shutdown matrix wiring boards for critical industrial turbines.
- Establishing unified power and backplane pathways within high-integrity distributed asset protection panels.
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