Overview

ATS MX Contactor

The MX line of Automatic Transfer Switches are contactor based switches in sizes ranging from 30A through 5000A.

CTE Series Automatic Transfer Switch

Cat Gensets Rating Guide

<ul><li>Double throw, interlocked operation</li> <li>Electrically operated, mechanically held by a simple, over-center mechanism</li> <li>Silver alloy contacts with separate arcing contacts on 600 amp and above</li> <li>Arc quenching grids, enclosed arc chambers, and wide contact air gap for superior source to-source isolation on all units</li> <li>Durable solenoid ATS operated mechanisms and robust electronics, tested for severe Electro Magnetic Compatibility and Environmental conditions</li><li>Control circuit disconnect plug and drive inhibit switch for safe maintenance</li><li>Components accessible for inspection and maintenance without removal of the switch or the power conductors</li> <li>Mechanical indicator and contact chamber cover designed for inspection, safety and position designation</li></ul>

Design and Construction Features

<ul><li>Standard open two position transition plus delayed and closed transition</li> <li>High close-in and withstand capability</li> <li>Temperature rise test per UL 1008 conducted after overload and endurance tests in unventilated enclosure – exceeds UL requirements</li> <li>Equipped with the MX350 Control Packag</li></ul>

Performance Features

The Cat® CTE Series transfer switches are configurable for applications requiring the dependability and ease of operation found in a full featured power contactor type transfer switch. The CTE Series is equipped with the MX350 controller that is designed for the most demanding transfer or bypass switch applications providing enhanced connectivity for accurate and timely diagnostics and event recording.

The Cat® CTE Series transfer switches are configurable for applications requiring the dependability and ease of operation found in a full featured power contactor type transfer switch. The CTE Series is equipped with the MX350 controller that is designed for the most demanding transfer or bypass switch applications providing enhanced connectivity for accurate and timely diagnostics and event recording.

<li>Seismic tested and certified to IBC 2006 & OSHPD</li> <li>CSA C22.2 No. 178 certified at 600 VAC</li> <li>IEC 947-6-1 liste

makes use of a fully programmable / configurable microprocessor-based controller to allow the utmost in application flexibility.

type transfer switch

CTE Series Transfer Switch

CTG Series Automatic Transfer Switch Spec Sheet

<ul> <li>Ratings 40 to 3000 amps (2, 3 or 4 poles)</li> <li> UL 1008 listed at 480 VAC</li> <li> CSA certified at 600 VAC (200-225 amp - 480V)</li> <li> IEC listed at 480 V</li> <li>Double throw, mechanically interlocked contactor mechanism</li> <li>Electrically operated, mechanically held</li> <li>Designed for emergency and standby applications</li> <li>Available in standard open transition (CTG)or delayed transition (CTGD) models</li> <li> Ringing wave immunity per IEEE 472 (ANSI C37.90A</li> <li>Conducted and Radiated Emissions per EN55022 Class B (CISPR 11) (Exceeds EN55011 & MILSTD 461 Class 3)</li> <li>ESD immunity test per EN61000-4-2 (Level 4)</li> <li>Radiated RF, electromagnetic field immunity test per EN61000-4-3 (ENV50140) 10v/m</li> <li>Electrical fast transient/burst immunity test per EN61000-4-4 <li>Radiated RF, electromagnetic field immunity</li> <li>Surge immunity test per EN61000-4-5 IEEE C62.41 (1.2 X 50 ms, 5 & 8 kV)</li> <li>Conducted immunity test per EN61000-4-6 (ENV50141)</li> <li>Voltage dips and interruption immunity EN61000-4-11</li> <li>Seismic Compliance to IEEE-693-2005 and IBC-2003 </li></ul>

Features

<ul><li>Close differential 3 phase under-voltage sensing of the normal source - factory standard setting 90% pickup, 80% dropout (adjustable);under frequency sensing of the normal source factory setting 95% pickup (adjustable)</li><li>Voltage and frequency sensing of the emergency source - factory standard setting 90% pickup voltage, 95% pickup frequency (adjustable)</li><li>Test switch (fast test/load/no load) to simulate normal source failure - automatically bypassed should the emergency source fail</li><li>Type 1 enclosure is standard - also available in open style or Types 3R, 4, 4X, or 12</li></ul>

The Cat® CTG Series Automatic Transfer Switches (ATS) are pre-configured for applications requiring the dependability and ease of operation found in a full feature power contactor type transfer switch. CTG switches are equipped with the next generation MX150 microprocessor panel, which controls the operation and displays the status of the transfer switch's position, timers and available sources. As an embedded digital controller, the MX150 offers high reliability and ease of unattended operation across a range of applications.

with non-volatile memory-clock battery backup not required for standard switch operation

Controller

are pre-configured for applications requiring the dependability and ease of operation found in a full feature power contactor type transfer switch

Automatic Transfer Switches (ATS)

CTGSE & CTGDSE Series Service Entrance Rated ATS Spec Sheet

Cat® CTGSE series automatic transfer switches (ATS)integrates the utility circuit breaker, optional transient voltage surge suppression and power monitoring into one  package. The CTGDSE series provides delayed transition operation of the ATS. The MX150 controller displays the status of the transfer switch's position, timers and available  sources. A communications network interface is available as an option.

standard with NEMA 3R as an option

(fast test, load, no load) to simulate normal source failure automatically bypassed should Source 2 fail

Switch

CTS Series Automatic Transfer Switch Spec Sheet

<ul><li>Contact transfer speed less than 100 milliseconds</li><li>High close-in and withstand capability</li><li>Temperature rise test per UL 1008 conducted after overload and endurance tests in unventilated enclosure – exceeds UL requirements</li><li>Equipped with the MX250 Control Package</li></ul>

<ul><li>Double throw, interlocked operation</li><li>Electrically operated, mechanically held by a simple, over-center mechanism</li><li>Silver alloy contacts with separate arcing contacts on 600 amp and above</li><li>Arc quenching grids, enclosed arc chambers, and wide contact air gap for superior source to- source isolation on all units</li><li>Control circuit disconnect plug and drive inhibit switch for safe maintenance</li> <li>Components accessible for inspection and maintenance without removal of the switch or the power conductors</li><li>Mechanical indicator and contact chamber cover designed for inspection, safety and position designation </li></ul>

The Cat® CTS Series Automatic Transfer Switch(ATS)is configurable for applications requiring the dependability and ease of operation found in a full featured power contactor type transfer switch. The CTS Series is equipped with the MX250 controller that is designed for the most demanding transfer or bypass switch applications.

The Cat® CTS Series Automatic Transfer Switch(ATS)is configurable for applications requiring the dependability and ease of operation found in a full featured power contactor type transfer switch. The CTS Series is equipped with the MX250 controller that is designed for the most demanding transfer or bypass switch applications.

UL 1008 listed at 480 VAC CSA C22.2 No. 178 certified at 600 VAC IEC 947-6-1 listed through 480 VAC

makes use of a fully programmable / configurable microprocessor-based controller to allow the utmost in application flexibility

contactor type transfer switch

Systems  /  Power Systems  /  Electric Power Generation  /  ATS MX Contactor 	 CTS Series Automatic Transfer Switch

CTSM and CTGM Series Manual Transfer Switches Spec Sheet

UL, CSA and IEC Listed

Amperage sizes: 40, 80, 100, 150, 200, 225, 260, 400, 600, 800, 1000, 1200, 1600, 2000, 3000, 4000

Poles: 2, 3 or 4

Available for operation on all standard voltage systems

Withstand Current Ratings: Same as CTS Series automatic transfer switches

Available in standard, delayed and closed transition versions

Some emergency power installations require multiple automatic transfer switches, each feeding a specific load. In many installations where noncritical loads are being served, specifications may call for manual or non-automatic transfer switches. This method is used because operating personnel are present and the loads are not of a critical nature requiring unattended automatic operation. Because of the less critical function of this equipment, no specific industry requirements have been established. As a result, devices such as double throw disconnect switches have been used. Since the non-automatic transfer switches are part of the emergency power supply system, they should have the same UL 1008 electrical ratings as the automatic transfer switches feeding the more critical loads. In the event of a short circuit, the non-automatic transfer switches must have the same withstand current ratings as the automatic transfer switches and they must be as rugged and dependable.

Some emergency power installations require multiple automatic transfer switches, each feeding a specific load. In many installations where noncritical loads are being served, specifications may call for manual or non-automatic transfer switches. This method is used because operating personnel are present and the loads are not of a critical nature requiring unattended automatic operation. Because of the less critical function of this equipment, no specific industry requirements have been established. As a result, devices such as double throw disconnect switches have been used. Since the non-automatic transfer switches are part of the emergency power supply system, they should have the same UL 1008 electrical ratings as the automatic transfer switches feeding the more critical loads. In the event of a short circuit, the non-automatic transfer switches must have the same withstand current ratings as the automatic transfer switches and they must be as rugged and dependable.

additional protection by incorporating normal and alternate source voltage sensing relays which will not permit the switch to be manually transferred unless the source to which it is being transferred is at 90% of its rated voltage

Offer

CTSM and CTGM Series Manual Transfer Switches

CTX Series Automatic Transfer Switch

<ul>CTX switches are equipped with the MX-60 control panel as standard. This microprocessor control includes:<li>Undervoltage sensing (90% pickup/80% dropout of the utility source</li><ul><li> Voltage and frequency sensing of the generator source (90% voltage/95% frequency pickup)</li><li>Time Delay Engine Start – 5 seconds (P)</li><li>Time Delay Engine Warmup – Transfer to Generator – 20 seconds (W)</li> <li>Time Delay Utility Stabilization/Retransfer to Utility – 5 minutes (T)</li> <li>Time Delay Engine Cool Down – 5 minutes (U)</li></ul> All time delays are fixed. </li></ul>

MX Control Panel

Cat® CTX Series switches are built for residential and light commercial applications requiring the dependability and ease of operation found in a power contactor switch. Voltage sensing and system control is performed via a state-of-the-art microcontroller located on the cabinet door.

Cat® CTX Series switches are built for residential and light commercial applications requiring the dependability and ease of operation found in a power contactor switch. Voltage sensing and system control is performed via a state-of-the-art microcontroller located on the cabinet door.

Control Panel

Pushbuttons for test, exercise set, timer bypass, and program cancel

for power availability, switch
position, and load energized

Diagnostic LED indications in logical one-line configuration

status annunciation of in-phase transfer and times operation
Selectable 7, 14, 21 or 28 day (factory set 28 days) generator exerciser timer

MX150 Microprocessor Controller Spec Sheet

<ul><li>Digital timer and adjustments with 1 second resolution</li><li>Long lasting LED indicators and an easy-to-view LCD display</li><li>Inputs optoisolated for high electrical immunity to transients and noise</li><li>Digital voltage and frequency adjustments with1% resolution</li><li>Voltage and frequency sensing includes: –Voltage imbalance detection between phases –Under frequency sensing on source 2 –3 Phase under voltage sensing on source 1(S1) – Normal and single phase sensing onsource (S2) – Emergency</li><li>Modular pre-signal option easily integrated into the system (e.g. elevator pre-signal and motor load disconnect)</li><li>Universal Motor Disconnect (UMD) available for programming to pre-signal, post-signal or both</li><li>Line voltage transients are isolated from the control board using remote transformers</li><li>Simplified major components and modules for easy replacement</li><li>On-board diagnostics including voltage frequency, control and timing</li><li>Nonvolatile memory – battery backup not required during normal source outage</li><li>External communication available through LonWorks/ModBus network interface (RS232,RS 422, and RS 485 are also available)</li><li>Maintained and momentary test positions are available to the controller</li><li>Test mode allows manual bypass of all transfer timers when applicable</li><li>Automatic daylight savings adjustment available</li></ul>

Features and Benefits

<ul><li>LEDs for continuous monitoring of switch position, source availability, exercise time delay operation and diagnostics</li><li>Simplified adjustment for voltage, frequency and time delay settings</li><li>Close differential 3 phase under-voltage sensing of source 1, factory standard setting 90% pickup,80% dropout (adjustable); under-frequency sensing of the source 1 factory setting 95% pickup (adjustable)</li><li>Voltage and frequency sensing of source 2,factory standard setting 90% pickup voltage,95% pickup frequency (adjustable)</li><li>Test switch (fast test/load/no load) to simulate normal source failure – automatically bypassed should source 2 fail</li></ul>

User-Friendly Operation

The MX150 microprocessor is standard with the CTG product family. The MX150 microprocessor panel controls the operation and displays thes tatus of the transfer switch's position, timer sand available sources. As an embedded digital controller, the MX series offers high reliability and ease of unattended operation across a range of applications.

The MX150 microprocessor is standard with the CTG product family. The MX150 microprocessor panel controls the operation and displays thes tatus of the transfer switch's position, timer sand available sources. As an embedded digital controller, the MX series offers high reliability and ease of unattended operation across a range of applications.

40 - 400 amp molded shell (-20˚C to 65˚C) , -4˚F to 149˚F 40 - 4000 amp all others (-20˚C to 60˚C), -4˚F to 149˚F

microprocessor

offers high reliability and ease of unattended operation across a range of applications

MX150 Microprocessor Controller

MX250 Microprocessor Controller Spec Sheet

<ul><li>Available to support ALL transfer modes: –Open, Delayed and Closed Transition</li><li>User-friendly programmable engine exerciser,with or without load, at ANY interval in a one-year period</li><li>A wide variety of operating voltages available in a single controller for most domestic and international applications</li><li>Real-time display of ATS status, including active timer(s)</li><li>Multiple levels of user-defined password protection</li><li>Serial communications allowing connectivity with other ATS's, Caterpillar® Switchgear, and SCADA systems</li><li>Time-tested synchronous logic automatically measures phase angle and frequency allowing disturbance-free transfer</li><li>Unsurpassed statistical ATS/System monitoring available in real-time</li><li>Elevator pre-signal contacts automatically bypassed if the selected source fails, minimizing time an elevator is without power</li><li>Universal Motor Disconnect (UMD) sends a pre-signal, post-signal or both to any motor control center. Not bypassed in an outage,the UMD ensures safety in the event of a single phase loss</li><li>Voltage unbalance detection standard</li><li>Also includes all standard MX150 features</li><li>Back-lit/temperature compensated LCD display (includes the display of source voltage and frequency, exercise time, delay options and source condition)</li><li>Close differential 3-phase under-voltage sensing of source 1, factory standard setting 90% pickup, 80% dropout; under-frequency sensing of source 1 factory setting 95% pickup;voltage and frequency sensing of source 2,factory standard setting 90% pickup voltage,95% pickup frequency. All factory settings are operator adjustable.</li><li>LED indicators for ATS position and source availability</li><li>Plant exerciser clock (configured for 1, 7, 14 or 28 day run selections)</li><li>Built-in time delays with count-down display</li><li>Push button to bypass time delay transfer/retransfer</li><li>Transfer/commit/no commit selection In-phase monitor</li><li>Event logging (last 16 events)</li><li>A test is standard (fast test/load/no load) to simulate source 1 failure – automatically bypassed should source 2 fail.</li></ul>

The MX250 microprocessor is standard with the entire CTS product family. The MX250 Series includes all the standard features of the MX150 Controller while offering expanded programmability and field adaptability. The high reliability and ease of unattended operation makes it ideal to use in a wide range of mission critical applications.

40 - 400 amp molded shell (-20˚C to 65˚C) , -4˚F to 149˚F 40 - 4000 amp all others (-20˚C to 60˚C), -4˚F to 149˚F

is standard with the entire CTS product family

and ease of unattended operation makes it ideal to use in a wide range of mission critical applications

Reliability

MX250 Microprocessor Controller

MX350 Controller Spec Sheet

<ul> <li>Dual Communications Built-in RS-485 serial and 10/100 base-T Ethernet Open protocols - Modbus RTU and Modbus TCP</li> <li>Available to support Open, Closed and Delayed Transition</li> <li>Small footprint</li> <li>Graphical control panel</li> <li>Multiple communication protocols</li> <li>¼ inch VGA color graphical display with embedded HELP menus</li> <li>Status LED's indicating: ALARM - indicating a problem with the ATS or a user configured alarm condition is active TD DELAY - indicating the controller is timing before taking the next control action XFER INHIBIT - indicating the controller will not transfer to the other source without operator intervention SOURCE 1(S1) AVAILABLE LED - indicating power is present per user setpoints SOURCE 2 (S2) AVAILABLE LED - indicating power is present per user setpoints SOURCE 1 (S1) STATUS LED - indicating load is connected to S1 power SOURCE 2 (S2) STATUS LED - indicating load is connected to S2 power</li> <li>User-Configurable setpoints for inputs and Outputs</li> <li>Field modification of control features</li> <li>Plant exerciser clock for 1 day, 1 week, 14 days, 28 days or 365 days. The time base of 365 days permits up to 24 events to be scheduled and the other time bases permit up to 24 events.</li> <li>SYSTEM TESTS Fast Test - test with load, no time delays Transfer Load - test with load with time delays No Transfer - test without load, generator start only</li> <li>Controller Power Supply utilizing the Universal Transformer Assembly (UTA) - provides 170Vdc to the controller and 24Vdc ungrounded to the power relays. The UTA also provides line voltages from 120Vac to 600Vac via an internal six position jumper array, 120Vac UPS input and 24Vdc input battery options.</li> <li>Dual processor based with dedicated processor for high speed Serial or Ethernet connections</li> <li>All signal in / out relays are isolated via DIN Mounted relay / terminal blocks</li> <li>Elevator pre-signal contacts</li> <li>Power quality metering</li> <li>Elevator pre-signal </li></ul>

The MX350 controller is specifically designed for low  voltage Automatic Transfer Switch (ATS) applications. The flexible control and communications options are ideal for any application. Integrated push buttons, graphical   controls and LED indicators reduce external components and wiring in addition to providing local control and access to system information. Multiple communication protocols allow simple integration into monitoring and control systems.

120 - 690 VAC +/- 1% of nominal voltage (+/- .05 Hz, +/-.5 A)

Serial RS-485 upt to 115.2 Kbps or TCP/IP (10/100 base-T)

is standard with the entire CTE product family

interface provides local control and access to system information. Automation FlexLogic� with interlocking and
programmable logic control

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ATS MX Contactor

CTE Series Automatic Transfer Switch

CTE Series Automatic Transfer Switch

CTG Series Automatic Transfer Switch

CTG Series Automatic Transfer Switch

CTGSE & CTGDSE Series Service Rated Entrance Rated Automatic Transfer Switch

CTGSE & CTGDSE Series Service Rated Entrance Rated ATS

CTS Series Automatic Transfer Switch

CTS Series Automatic Transfer Switch

CTSM and CTGM Series Manual Transfer Switches

CTSM and CTGM Series Manual Transfer Switches

CTX Series Automatic Transfer Switch

CTX Series Automatic Transfer Switch

MX150 Microprocessor Controller

MX150 Microprocessor Controller

MX250 Microprocessor Controller

MX250 Microprocessor Controller

MX350 Controller

MX350 Controller

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