Eaton H9441H239A - Automatic Transfer Switch 400A 600V AC (NEMA 3R Enclosure)

Eaton H9441H239A is a heavy-duty automatic transfer switch designed for seamless power source transition during outages. It features a 600V AC voltage rating and 400A current capacity in a rugged NEMA 3R enclosure for outdoor durability. The unit complies with UL 1008 standards and features copper bus bars with tin plating for optimal conductivity. Its industrial-grade construction makes it ideal for critical facilities like data centers, hospitals, and manufacturing plants requiring uninterrupted power.

Key Features & Specifications

• Type: Automatic transfer switch with open transition
• Voltage Rating: 600V AC
• Current Rating: 400A
• Dimensions: 24" H x 12" W x 8" D
• Standards: UL 1008, NEMA 3R rated
• Applications: Data centers, healthcare facilities, industrial plants
• Switch Type: Double-throw
• Configuration: 3-pole
• Phase: 3-phase
• Connection: Lug-type
• Bus Type: Copper with tin plating
• Enclosure: NEMA 3R
• Operating Temperature: -40°C to 60°C
• Frequency Rating: 50/60Hz
• Certification: UL listed

Product Identification

• Manufacturer: Eaton, Cutler Hammer
• Item Subcategory: Automatic Transfer