CAT® ATC CONTACTOR-BASED AUTOMATIC TRANSFER SWITCH 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 d uring 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. 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

OPTIONS • 2 or 4-position test switch • Multi-meter options available • Delayed Transition and Closed Transition • Selectable automatic or non-automatic operation • Space heaters (recommended for use in NEMA 3R enclosures) • Surge suppression • Remote communications • Load shed from emergency • Controller availability: ATC-100, ATC-300+, and ATC-800 • Field selectable, multi ratio, control voltage transformer 50/60 Hz OPTIONAL DELAYED TRANSITION INCLUDES: • Time Delay Neutral • Pre-Transfer Signal with 1 N.O. and 1 N.C. contacts RATINGS • Wall Mount 40-600A 2 or 3 Pole • Floor Standing 600A 4...

UL 991 UL standards for safety tests for safety-related controls employing solid-state devices UL 1008 Dielectric test (endurance, w ithstand, etc.) IEEE® 472 (ANSI C37.90A) Ringing w ave immunity/voltage surge test EN55022 (CISPR11): Conducted and radiated emissions EN61000-4-2 Class B Level 4 ESD immunity test EN61000-4-3 (ENV50140) radiated RF, electromagnetic field immunity test EN61000-4-4 Electrical fast transient/burst immunity test EN61000-4-5 IEEE C62.41: Surge immunity test EN61000-4-6 (ENV50141) Conducted immunity test EN61000-4-11 Voltage dips and interruption immunity FCC Part 15...

OPEN TRANSITION CONTACTOR-BASED TRANSFER SWITCH 40-1200A NEMA 1 & NEMA 3R Enclosures Standard Termi Load Side, Normal and Standby Neutral Source Connection All dimensions and * Standard Terminals weights are approximate and subject to change without - ( ) indicate the quantity of supplied terminals per pole. kcmil kcmil kcmil kcmil kcmil kcmil kcmil kcmil

NEMA 1 & NEMA 3R Enclosures Load Side, Normal Standard Terminals * Dimensions in inches (mm) & approximate shipping lbs (kg) All dimensions and weights are approximate and subject to change without notice and are not for construction use. * Standard Terminals - ( ) indicate the quantity of supplied terminals per pole.

Standard Terminals ** NEMA 1 & NEMA 3R Enclosures Dimensions in Inches (mm) & Approximate Shipping lbs (kg) All Dimensions and weights are approximate and subject to change wuthout notice and are not for construction use * For 600-1200 Ampere NEMA 3R only, please add 1 inch to the height, 16 inches to the depth and add 50 pounds to the weight ** Standard Terminals - ( ) indicate the quantity of supplied terminals per pole. Information contained in this publication may be considered confidential. Discretion is recommended when distributing. Materials and specifications are subject to change without...