193-1EFBB

Overview of Allen Bradley 193-1EFBB

The Allen Bradley 193-1EFBB is a solid-state electronic overload relay engineered for precise motor protection in industrial automation applications. Designed as part of the E100 series, this relay offers a current adjustment range of 0.2 to 1.0A, making it suitable for smaller motors and delicate control circuits. It mounts directly to Bulletin 100 series contactors (sizes C09 through C23), ensuring easy integration with existing systems. The 193-1EFBB is a modern equivalent to the legacy 193-EEBB model, providing enhanced phase loss protection, reduced heat dissipation, and improved repeatability. With both manual and automatic reset options, it delivers reliable operation and helps prevent costly motor damage due to overheating or phase imbalances.

Key Features of Allen Bradley 193-1EFBB

• Precision current adjustment from 0.2A to 1.0A, supporting fine-tuning for diverse motor loads.
• Mounts directly to all Bulletin 100 C09 through C23 contactor sizes for quick installation.
• Self-powered solid-state design minimizes heat generation and increases system uptime.
• Selectable trip classes (Class 10, 15, 20, or 30) for customized response to fault conditions.
• Built-in phase loss protection and single-phase sensitivity ensure motor safety.
• Two auxiliary contacts supplied: one normally open alarm and one normally closed trip contact.
• Manual or automatic reset options adapt to different maintenance routines.
• Direct physical and electrical replacement for legacy 193-EEBB relays, aiding straightforward upgrades.
• Supports optional accessory modules for ground fault, jam, and PTC protection.

Technical Specs of Allen Bradley 193-1EFBB

Applications / Use Case

The Allen Bradley 193-1EFBB is engineered for applications requiring reliable, precise overload protection for small motors, typically found in packaging, material handling, and process control industries. Its adjustable trip setting and phase loss detection make it ideal for sensitive automation tasks where consistent motor operation is critical. The relay’s direct bolt-on compatibility with Bulletin 100 contactors allows easy retrofitting into existing control panels. By preventing motor damage due to overcurrent, phase loss, or overheating, the 193-1EFBB helps reduce downtime, extend equipment life, and maintain production efficiency in automated industrial environments.

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