Description
The Siemens 14DUE32AA is a heavy duty motor starter engineered for reliable three-phase motor protection and control in demanding commercial and industrial HVAC applications. Built to NEMA Size 1 standards in a compact Frame Size A1 configuration, this starter delivers robust performance with the precision of solid-state overload technology.
Key Features
- Dual coil voltage rating: 110–120V AC / 220–240V AC for flexible installation
- Three-phase, 3-pole design for full motor branch circuit protection
- 10–40 amp solid-state overload relay with auto/manual reset capability
- NEMA Size 1 rating for motors up to standard NEMA 1 horsepower ratings
- Frame Size A1 for space-efficient panel integration
- Open type enclosure — ideal for use inside existing electrical panels or enclosures
- Solid-state overload relay provides accurate, repeatable trip characteristics
- Auto/manual reset flexibility to suit application safety requirements
Product Specifications
- SKU: 14DUE32AA
- Brand: Siemens
- Coil Voltage: 110–120V AC / 220–240V AC
- Phases: Three Phase
- Poles: 3
- Overload Rating: 10–40 Amps
- NEMA Size: 1
- Frame Size: A1
- Enclosure Type: Open
- Overload Type: Solid State
- Reset Type: Auto / Manual
Application
The Siemens 14DUE32AA is well-suited for HVAC equipment such as air handling units, chiller compressors, cooling tower fans, and pump motors where dependable three-phase motor starting and overload protection are critical. The solid-state overload relay eliminates the variability of bimetallic overloads, offering consistent trip curves across a wide range of ambient temperatures. The dual coil voltage rating makes this starter adaptable to a variety of power distribution configurations without requiring a separate control transformer in many installations.
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