Siemens 14BUC32AA Heavy Duty Motor Starter, NEMA 00, 3-Phase, 110-240V Coil

Siemens 14BUC32AA Heavy Duty Motor Starter Overview

The Siemens 14BUC32AA is a heavy duty motor starter engineered for demanding three-phase motor control applications in commercial and industrial HVAC systems. Featuring a NEMA Size 00 rating with Frame Size A1 and an open type enclosure, this starter delivers dependable performance in a compact, field-proven design.

Key Features

• Coil Voltage: 110–120V / 220–240V AC — dual-voltage flexibility for a wide range of installations
• Three Phase, 3-Pole configuration for complete motor protection
• Overload Rating: 3–12 Amps — adjustable solid state overload relay
• NEMA Size 00 — suitable for fractional and small integral horsepower motors
• Frame Size A1 for standardized mounting and replacement
• Open Type Enclosure for panel or enclosure mounting
• Solid State Overload Relay with Auto/Manual Reset — reduces nuisance tripping and simplifies reset procedures
• Heavy duty construction for long service life in commercial HVAC and mechanical applications

Specifications

• SKU: 14BUC32AA
• Brand: Siemens
• Coil Voltage: 110–120V / 220–240V AC
• Phases: Three Phase
• Poles: 3
• Overload Range: 3–12 Amps
• NEMA Size: 00
• Frame Size: A1
• Enclosure Type: Open
• Overload Type: Solid State
• Reset Type: Auto / Manual

Application

Ideal for use with three-phase motors in HVAC air handlers, compressors, pumps, fans, and other motor-driven equipment requiring reliable overload protection and motor starting control. The dual-voltage coil makes this starter adaptable to both 120V and 240V control circuits, while the solid state overload relay provides precise, repeatable protection across the full 3–12 amp range.