ATS ATC Breaker / Contactor

Details

Rating Range
40-1600A

Transfer Type
Open / Closed Transition

Switch Type
Contactor Based

Contact

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Overview

Cat® transfer switches are designed for a variety of standby power applications. They provide flexibility, reliability and value in a compact package. The open and delayed transition contactor-based Automatic Transfer Switch (ATS) provides fully functioning transfer in Applications where a momentary loss of power is acceptable during transfer and retransfers between normal and emergency power supply.

The closed transition contactor-based ATS is designed to Meet application requirements where emergency back up power is required with no momentary loss of power by connecting both sources before the transfer occurs. Closed transition also permits periodic testing of the emergency power source without interrupting power to the loads.

Benefits

microprocessor-based controller

flexibility, reliability and value

in a compact package

transition

permits periodic testing of the emergency power source without interrupting power to the loads

Features at a Glance

Product Features

ATC-100, ATC-300+ or ATC-800 microprocessor-based controller
Voltage and frequency sensing
High withstand and closing ratings
Multiple field programmable set points
Status Display including switch position indication
Source availability indication
Source 1 and 2 auxiliary contacts
True RMS voltage and frequency sensing
Programmable plant exerciser
System test pushbutton
Mimic diagram
Double-throw, mechanically interlocked transfer mechanism
Switch position indication
Status display
Double-throw UL 1008 3-position contactors

Specifications

Full Specifications

Technical Summary: Rating Range
40-1600A

Transfer Type
Open / Closed Transition

Switch Type
Contactor Based

Ratings: Control Power
Wall Mount 40-600A 2 or 3 Pole<br>Floor Standing 600A 4 Pole & 800-1200A 2, 3, or 4 Pole

Two-Position Contactors
Two-position contactors 40-400A

Three-Position Contactors
Three-position contactors 40-1200A

System Voltage Application
Up to 600 Vac, 50/60 Hz

Applicable Testing
UL 1008 listed, CSA C22.2 No. 178 certified, IBC 2006, CBC 2007 and OSHPD

Equipment

Standard Equipment

Contact Composition

Caterpillar utilizes silver composition contacts designed to meet the stringent requirements of UL 1008. All contactors are designed so that the contacts can be visually inspected without major disassembly and are protected by arcing contacts.

Controls and Wiring

All controls relays and industrial grade relays are totally encapsulated to minimize exposure to dust and dirt. Lugs are 90º rated and all control wire is #16 AWG, type XLPE with a 125º temperature rating.

Enclosure

Durable powder-coated steel NEMA 1, 3R or 12 enclosures with three door hinges to ensure proper support of the door and door mounted devices. The hinges have removable hinge pins to facilitate door removal for easy wall mounting or service and are supplied with pad-lockable latches.

Optional Equipment

Available Options

2- or 4-position test switch
Controller availability: ATC-100, ATC-300+,and ATC-800
Delayed transition or closed transition
Multi-meter options available
Surge suppression
Space heaters
Field selectable, multi ratio, control voltage transformer 50/60 Hz
Selectable automatic or non-automatic operation
Remote communications
Load shed from emergency

Optional Delayed Transition includes:

Pre-transfer signal with 1 N.O. and 1 N.C. contacts
Time delay neutral

Resources

ATC Contactor-Based Automatic Transfer Switch Spec Sheet

Cat Gensets Rating Guide

ATS Application & Installation Guide

Similar New Power Solutions

ATC-300+ CONTROLLER

Rating Range: 120 to 600V, single phase and three phase @ 50/60 Hz
Transfer Type: Switch application dependent
Switch Type: Switch application dependent