The ASCO D03ATSA30030NGXC is a 30 Amp, 480V, 3-Phase Automatic Transfer Switch from the Series 300 Group G product line, designed for commercial and industrial backup power applications. Built on the D-frame platform and housed in a NEMA Type 4 watertight enclosure, this unit is suitable for both indoor and outdoor installations where moisture, dust, and weather exposure are factors. The Series 300 is a contact-based, open-transition automatic transfer switch that uses a single-solenoid double-throw operating mechanism with mechanical interlock to prevent simultaneous source connection. It is engineered for facilities requiring reliable, code-compliant emergency power transfer between a utility source and a backup generator. Listed to UL 1008 and CSA C22.2 standards, the switch meets the requirements of NFPA 110 for Emergency and Standby Power Systems and conforms to NEC Articles 700, 701, and 702. The Group G microprocessor controller provides a graphical LCD display, adjustable time delays, programmable engine exerciser, event logging, RS-485 communication, and common alarm output contacts. The controller stores operating criteria, senses electrical conditions, executes transfer sequences, and tracks operational data, enabling reliable transfer of motor loads and high inrush applications without exceeding normal starting current levels. Common applications include telecommunications facilities, healthcare buildings, data centers, water and wastewater treatment, municipal infrastructure, agricultural operations, and commercial buildings requiring continuous power. The compact footprint, robust construction, and outdoor-rated enclosure make the D03ATSA30030NGXC well-suited for installations where space is limited and environmental exposure is a concern. This is a new-in-box surplus unit available at a significant discount to retail dealer pricing.

Manufacturer: ASCO Power Technologies Model: D03ATSA30030NGXC Series: 300 (Group G Controller) Type: Automatic Transfer Switch Frame: D Voltage: 480V Current: 30 Amps Phase: 3-Phase Number of Poles: 3-Pole Neutral: Solid Frequency: 60Hz Control Voltage: 120VAC Enclosure: NEMA Type 4 (Watertight, Indoor/Outdoor) Transition Type: Open Transition Standards: UL 1008, CSA C22.2 Application: Emergency and Standby Power Transfer (NFPA 110, NEC Articles 700/701/702) Condition: New in Box