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ZT30 Series - Automatic Transfer Switch

A UL tested 30-cycle short time rated Automatic Transfer Switch that is utilized with Over Current Protective Devices (OCPD) to facilitate selective coordination. Call 1-800-352-3361 for assistance in selecting your switch.


General Electric Logo

General Electric ZT30 Series

Related Market:
Data Center, Telecom


ZT30 Series - Standard (Open), Delayed or Closed Transition

The Zenith ZT30 Automatic Transfer Switch is a UL tested 30-cycle short time rated ATS which utilizes Over Current Protective Devices (OCPD) to facilitate selective coordination. General Electric's ZT30 has an industry leading short time rating and best-in-class footprint which simplifies the selective design process and provides elite system design flexibility for future growth. The ZT30 supplies 100% rated power to loads after an over current event, which in turn helps to maximize the power distribution system reliability and uptime.

ZT30 Available in: Standard, Delayed, Closed Transition, and Bypass-Isolation Modes.

ZT30 Series Features and Benefits:

  • Reliability / Performance
    - Facilitates selective coordination design
    - Maximizes system uptime & reliability
    - Industry-leading short time rating (withstand & close-on)
  • Safety
    - Manual Quick Make/Quick Break operation
    - Manual operation with the door close
    - "Shutter System" - for bypass switches adds another of layer of protection during maintenance
  • Ease of Installation/Maintenance
    - 100% top or bottom cable entry
    - Interchangeable source cable terminations
    - Mechanical switch position indicator
    - Master terminal connection for customer control wiring
    - Cable bracing not required
  • Space Optimization/Flexibility
    - Best-in-class footprint
    - 3-pole & 4-pole in the same footprint
    - Field upgradeable from 3-pole to 4-pole
    - Simple field configurable voltage selection

ZT30 Series Specifications:

  • 30 Cycle Short Time -  UL1008 Listed, Tested and Labeled
  • UL 1008 7th edition standard
  • Transition Type: Standard, Delayed, Closed
  • Amperage Rating: 1000A to 3000A
  • Poles: 3 or 4 pole switching
  • Voltage: 600VAC max
  • Short Time Rating:
    - 85kA: 30 Cycle (0.5s)
    - 100kA: 3 cycle
  • Withstand and Close-on Rating:
    - 100kA: 3 Cycle
    - 200kA: with Current Limiting Fuse Class L
  • Transfer Time:
    - Standard (Open) Transition: ~ 30ms to 70ms
    - Delayed Transition: ~ 80ms (Customer Programmable Time Delay Setting)
    - Closed Transition: Less than 100ms parallel
  • Enclosure Types:  Open Style, NEMA 1, NEMA 3R, NEMA 4, NEMA 4X, NEMA 12
  • Microprocessor Controller: MX250, MX350
  • Certifications: UL/cUL rated up to 600V at 50/60Hz, Seismic Qualified to IBC-2009 & IEEE 693-2005, OSHPD
  • Code Compliance: NFPA 70, 99, 101, 110; IEEE 446, 241, 602; NEMA ICS 10, CC1 (lug)
  • Enclosure Compliance: UL 50, UL 508, NEMA 250


General Electric Logo

General Electric ZB30 Bypass Isolation Series

Related Market:
Data Center, Telecom


ZB30 Series - Bypass Isolation (Standard, Delayed or Closed)

The Zenith ZB30 Automatic Transfer Switch is a UL tested 30-cycle short time rated ATS which utilizes Over Current Protective Devices (OCPD) to facilitate selective coordination. General Electric's ZB30 has an industry leading short time rating and best-in-class footprint which simplifies the selective design process and provides elite system design flexibility for future growth. The ZB30 supplies 100% rated power to loads after an over current event, which in turn helps to maximize the power distribution system reliability and uptime.

The bypass uses normal failure sensing and a time delay to start the engine automatically if a failure occurs when the ATS has been removed for service, which can be done without disturbing the load.

ZB30 Series Features and Benefits:

  • Reliability / Performance
    - Facilitates selective coordination design
    - Maximizes system uptime & reliability
    - Industry-leading short time rating (withstand & close-on)
  • Safety
    - Manual Quick Make/Quick Break operation (Standard and Delayed Transition)
    - Manual operation with the door close
    - "Shutter System" - for bypass switches adds another of layer of protection during maintenance
  • Ease of Installation/Maintenance
    - 100% top or bottom cable entry
    - Interchangeable source cable terminations
    - Mechanical switch position indicator
    - Master terminal connection for customer control wiring
    - Cable bracing not required
  • Space Optimization/Flexibility
    - Best-in-class footprint
    - 3-pole & 4-pole in the same footprint
    - Field upgradeable from 3-pole to 4-pole
    - Simple field configurable voltage selection

ZB30 Series Specifications:

  • 30 Cycle Short Time - UL1008 Listed, Tested and Labeled
  • Transition Type: Standard, Delayed, Closed
  • Amperage Rating: 1000A to 3000A
  • Poles: 3 or 4 pole switching
  • Voltage: 600VAC max
  • Short Time Rating:
    - 85kA: 30 Cycle (0.5s)
    - 100kA: 3 cycle
  • Withstand and Close-on Rating:
    - 100kA: 3 Cycle
    - 200kA: with Current Limiting Fuse Class L
  • Transfer Time:
    - Standard (Open) Transition: ~ 30ms to 70ms
    - Delayed Transition: ~ 80ms (Customer Programmable Time Delay Setting)
    - Closed Transition: Less than 100ms parallel
  • Enclosure Types: Open Style, NEMA 1, NEMA 3R, NEMA 4, NEMA 4X, NEMA 12
  • Microprocessor Controller: MX250, MX350
  • Certifications: UL/cUL rated up to 600V at 50/60Hz, Seismic Qualified to IBC-2009 & IEEE 693-2005, OSHPD
  • Code Compliance: NFPA 70, 99, 101, 110; IEEE 446, 241, 602: NEMA ICS 10, CC1 (lug)
  • Enclosure Compliance: UL 50, UL 508, NEMA 250

For help selecting the right automatic transfer switch for your space
contact power@rackmountsolutions.net or call (800) 352-6631