Description
The Siemens 14GUG32AA is a heavy-duty, three-phase motor starter engineered for reliable motor protection and control in demanding commercial and industrial HVAC applications. Built to NEMA Size 2-1/2 standards with a Frame Size B configuration, this starter delivers robust performance in an open-type enclosure that allows for easy inspection and maintenance.
Electrical Specifications
- Coil Voltage: 110–120V / 220–240V AC
- Phase: Three Phase
- Poles: 3 Pole
- Overload Rating: 25–100 Amps
- NEMA Size: 2-1/2
- Frame Size: B
Design & Protection Features
- Solid-state overload relay with Auto/Manual reset capability
- Open-type enclosure for accessible wiring and servicing
- Heavy-duty construction rated for continuous industrial-grade motor starting duty
- Three-phase protection guards against motor damage from overload conditions
Application
The 14GUG32AA is ideal for controlling and protecting three-phase motors in HVAC systems, pumps, compressors, fans, and other motor-driven equipment. The solid-state overload relay provides precise, reliable protection against overload conditions, while the auto/manual reset option gives technicians flexibility in how the unit responds to a fault. The dual coil voltage rating (110–120V / 220–240V AC) makes this starter adaptable to a wide range of electrical systems commonly found in commercial buildings and mechanical rooms.
Why Choose the Siemens 14GUG32AA
- Siemens quality and reliability trusted by HVAC professionals
- Wide overload range (25–100A) accommodates various motor sizes
- Dual-voltage coil simplifies installation across different electrical configurations
- Solid-state overload technology offers enhanced accuracy over traditional bimetallic overloads
- Auto/Manual reset provides operational flexibility for maintenance teams







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