Allen-Bradley 80172-110-02-3 SMC Thyristor Unit

Description

The Allen-Bradley 80172-110-02-3 is a Gate Commutated Turn-off (GCT) thyristor unit engineered for solid-state motor switching sub-assemblies. This thyristor unit operates within SMC-3 soft starter frameworks to manage solid-state phase voltage reductions and ramp parameters during electric motor acceleration and deceleration sequences. Functioning at a rated control voltage of 110-120V AC, the 80172-110-02-3 modulates high-power conduction paths using embedded switching logic to limit high mechanical torque spikes and electrical inrush currents. The assembly features an integrated layout that fits directly into the soft starter power pole configurations, providing a compact footprint for industrial motor management systems.

Features

• Integrates Gate Commutated Turn-off (GCT) switching architecture for precision commutation control
• Utilizes a compact configuration matched specifically for standard power pole paths in soft starters
• Supports high thermal cycling performance required under repetitive industrial starting duties

Applications

• Controlled voltage ramp acceleration loops within industrial SMC-3 soft starter systems
• Reduced-voltage motor starting installations for three-phase induction motors
• Heavy-duty machinery torque and inrush current management sub-panels

Technical Specifications

Installation Guidelines

• Electrostatic Discharge Protection: Employ appropriate grounded wrist straps during handling, as the gate control traces are sensitive to ESD damage.
• Thermal Interface Compound Alignment: Clean the mating heatsink surface thoroughly and apply a uniform layer of thermal grease before securing the module to ensure optimal heat dissipation.
• Altitude Derating Check: Verify operating environment conditions if installing at sites exceeding the nominal 1000m (3300 ft) altitude threshold.
• Enclosure Ventilation Verification: Check that panel fans or louvers maintain surrounding internal ambient temperatures within required boundaries under full load conditions.