Description
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.







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