How does it work?

The STS constantly monitors the power quality of both sources taking into account the customer

specified thresholds. In addition, three transfer modes are available to customers to choose from:

A9. DIR always and DIR limited.

A9: this mode is a proprietary method that is to be used only when the phase difference between the

sources is less than a user defined phase angle.

The range of this setting is adjustable up to +/– 30 degrees, and is not recommended for larger phase

differences.

DIR always: this mode allows the SuperSwitch®4 to permanently transfer using the Real Time Flux

Control approach and should result in low inrush regardless of how far the two sources are out of

phase.

DIR limited: this mode is the recommended setting for the SuperSwitch®4. In this mode, a hybrid

approach of A9 and DIR is performed depending on the phase difference between the sources.

Most customers use the recommended setting of DIR limited because the STS will auto select when,

and if, the DIR function is needed depending on the phase difference as illustrated by Figure 1 below.

Primary switching architecture

Static Transfer Switches (STSs) are central components in data center power system

configurations. The typical system design incorporates two separate uninterruptible power

supplies (UPSs), Source 1 and Source 2 feeding the preferred and alternate sources of the STS.

These devices are the bridge between the power sources UPSs and the power

distribution units (PDUs) where a transformer is needed to typically switch the 480V

side (primary) to the 208V side (secondary). The primary side switching (480V) is the most common

and cost effective architecture to the customer in terms of smaller footprint and lower costs because

only one transformer is needed. The alternative architecture would be to switch the secondary

which would require each source to have its own fully rated transformer (208V).

The SuperSwitch®4 is the cornerstone of redundant power for a wide range of applications including

data centers, hospitals, semiconductor manufacturing and other installations where

continuous power is critical to a facility’s mission.

Engineered to protect critical loads in both commercial and industrial environments, these

switches can transfer power between any two sources of power, including any combination of

utility, UPS and generators.

Engineered to protect critical loads

The SuperSwitch®4 is the cornerstone of redundant power for a wide range of applications including

data centers, hospitals, semiconductor manufacturing and other installations where

continuous power is critical to a facility’s mission.

Engineered to protect critical loads in both commercial and industrial environments, these

switches can transfer power between any two sources of power, including any combination of

utility, UPS and generators.

Data center: Mission critical facilities used to house computer, network, data storage,

telecommunications, and other vital systems that require constant power with no interruptions.

Hospitals: Health care institutions that require constant power with no interruptions to data and

records management.

Manufacturing/business operations:

Manufacturing and business operations that require constant power without interruptions due

to the critical nature of their vital IT functions.

Flexible system architecture ready: N+1. 2N, 2N+1. N+N, 3N/2. and catcher systems. ABB catcher system

configurations allow redundancy and reliability and improve total costs of ownership.

State of the art performance

•   Expands SuperSwitch technology with enhanced platform and features

•   10.4″ color TFT industrial use LED touchscreen GUI

•   25% faster transfer times

•   40% lower inrush limiting

•   Enhanced power quality detection

•   Field calibration support

•   USB port for software upgrades; data and event downloads

•   16 user configurable alarm relays

•   10 user inputs for communications control

•   Enhanced meters and trending

•   10 cycle waveshape captures of critical powerevents

•   Improved circuit redundancy

SuperSwitch® 4 redefines reliability

Forty years ago, Cyberex revolutionized power distribution with its invention of the digital static

transfer switch (STS). Since then, building on the innovation of ABB engineering and the technological

advancements and commissioning of the most extensive installed base of STSs worldwide,

the SuperSwitch®

4 has evolved. Designed with a ‘true’ fault-tolerant architecture, SuperSwitch®4 ensures

there is truly no single point of failure through the use of our patented transfer algorithms and robust

electrical components. With an increased MTBDE to an estimated 1.5 million hours, SuperSwitch®4

reliability is unmatched. SuperSwitch®4 redefines power reliability with its exceptional design,

serviceability and user-interface.

Reliability through design excellence

The Cyberex brand has been an industry leader in the design and development of mission critical

systems that ensure uptime and business continuity for customers across the globe. 

We recognize that every customer has unique electrical requirements and we work closely with them to

develop solutions that solve their most difficult challenges.

SuperSwitch®4 provides maximum reliability through its innovative design.

The modular components, from the power stage to the redundant bus architecture,

have been engineered to unprecedented standards.

The SuperSwitch®4 is available in select cabinet sizes that cater to your serviceability requirements.

Its standard ultra-dense design maximizes physical floor space. Front access is required for operation

and removal of serviceable components, while one side or rear access is required for installation and

tightening of customer connections. A full front access cabinet design is also available for complete

operation, maintenance, installation and IR scanning accessibility.

Fully rated hockey puck SCRs are employed to prevent system damage after load faults.

The superior cooling design of the assembly enables higher current applications.

Infrared scans are easily accomplished without removal of assembly.

Connections and maintenance are made easier by staggered phase connections and ample gutter

space. 100% of connections are torqued ensuring maximum reliability.

VSuperSwitch® 4 redefines reliability

Forty years ago, Cyberex revolutionized power distribution with its invention of the digital static

transfer switch (STS). Since then, building on the innovation of ABB engineering and the technological

advancements and commissioning of the most extensive installed base of STSs worldwide,

the SuperSwitch®

4 has evolved. Designed with a ‘true’ fault-tolerant architecture, SuperSwitch®4 ensures

there is truly no single point of failure through the use of our patented transfer algorithms and robust

electrical components. With an increased MTBDE to an estimated 1.5 million hours, SuperSwitch®4

reliability is unmatched. SuperSwitch®4 redefines power reliability with its exceptional design,

serviceability and user-interface.

State of the art performance

•   Expands SuperSwitch technology with enhanced platform and features

•   10.4″ color TFT industrial use LED touchscreen GUI

•   25% faster transfer times

•   40% lower inrush limiting

•   Enhanced power quality detection

•   Field calibration support

•   USB port for software upgrades; data and event downloads

•   16 user configurable alarm relays

•   10 user inputs for communications control

•   Enhanced meters and trending

•   10 cycle waveshape captures of critical powerevents

•   Improved circuit redundancy