ZENITH 1200 Amp ATS Automatic Transfer Switch 3 PHASE 480V 277V 4 POLE 1000 #34

Description:

The Zenith 1200 Amp Automatic Transfer Switch (ATS) is used in industrial and commercial power systems to automatically transfer electrical load between a primary utility source and a backup generator. Commonly installed in data centers, hospitals, manufacturing facilities, and large commercial buildings, this switch ensures uninterrupted power during outages. Maintenance teams and system integrators use this unit for critical power continuity, system protection, and replacement of high-capacity transfer switchgear.

Applications:

The Zenith 1200A ATS is widely used in environments requiring continuous and reliable power. It is commonly found in emergency power systems, generator backup installations, and large-scale electrical distribution systems where maintaining uptime and protecting equipment from power loss is critical.

Technical Specifications:

• Manufacturer Part Number (MPN): Varies by configuration (example: ZTSH120ECS series)
• Product type: Automatic transfer switch (ATS)
• Rated current: 1200 Amps
• Voltage rating: 480V / 277V AC
• Phase: 3-phase
• Poles: 4-pole (4-wire system)
• Frequency: 50 / 60 Hz
• Operation: Electrically operated, mechanically interlocked contactor mechanism
• Transition type: Open transition (typical)
• Control system: Microprocessor-based controller (MX150 or similar)
• Enclosure: NEMA 1, 3R, 4, or 12 options available
• Function: Automatically transfers load between utility and generator sources
• Application environment: Industrial, commercial, and mission-critical power systems

Common Replacements:

• ABB Zenith ZTG / TruONE 1200A ATS (modern replacement)
• ASCO 300 Series 1200A ATS
• Eaton / Russelectric 1200A transfer switches