Control Catalog Flippingbook

NEMA FULL VOLTAGE POWER DEVICES, CONTROL SECTION 1

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— CR390, CR490 mag-break magnetic starters Reversing, combination, NEMA type 1, 3R, 12, 4/4X 200 horsepower maximum NEMA sizes 0-5 600 volts maximum 50/60Hz

Application Used for full-voltage starting and reversing of squirrel cage induction motors up to 200 horsepower maximum, 600 Volts maximum. Consists of Spectra™ Mag-Break motor circuit protector for branch circuit protection (Sizes 0-4), reversing controller, and three-leg block overload relay. Refer to page 1-7 for features of basic starter. Features - Spectra™ Mag-Break motor circuit protector (Sizes 0-4) – provides protection against faults and has adjustable trip. - Meets NEC standards – continuous current ratings and adjustable instantaneous trip ranges meet NEC standards on motor full-load and locked rotor currents. - Can eliminate nuisance tripping and provide fault protection – by setting the Mag-Break instantaneous trip point just above transient motor inrush current - Less than one cycle clearing time – to open and clear a fault Product number selection instructions 1. Specify starter by complete Product Number. Example: CR490D104MF1AAAAA 2. Order heaters by complete Product Number from appropriate heater tables on pages 1-153 to 1-159, based on motor fullload current. 3. Order forms not listed or special features by complete description using a listed Product Number as reference wherever possible. Example: Similar to CR490D104MF1AAAAA except with 460/120 Volt control transformer 4. 50 Hertz starters 50 Hertz forms (at standard voltages) shown in table for 60 Hertz. See page 1-4 for 380-415Volt horsepower ratings. 5. Product notes Motor full-load current should not exceed continuous ampere rating of starter.

NEMA size 2 combination reverser in NEMA type 1 enclosure

Reference publications Instructions NEMA Size

Publication Number

0,1

GEH-5190 GEH-4775 GEH-4806 GEH-4807 GEH-4839

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