GE - General Electric CR309 Selection Guide
NEMA Full Voltage Power Devices
NEMA Rated Full Voltage Starters - Magnetic
CR309 Magnetic Reversing Starters
600 Horsepower Maximum, Open, NEMA Type 1, 3R, 12, 4/4X
NEMA Sizes 00-7
600 Volts Maximum
50/60 Hertz
Application
These reversing starters are used for full-voltage starting and
reversing of squirrel-cage induction motors up to 600 horsepower,
600 Volts maximum.
These starters are used for single-phase or polyphase motors on
applications where plugging and/or reversing operations are
required.
Refer to page 1-7 for features of basic starter.
Section 1
Jogging Duty
The horsepower ratings shown in the product tables for CR309
reversing starters are not to be used when operation requires
continuous plug-stop or jogging (inching) duty at a rate in excess
of five times per minute or 10 times in 10 minutes. Refer to page
1-4 for information.
Product Number Selection Instructions
1. Specify by complete Product Number and form.
Example: CR309D103 is a Size 2 reversing starter, three-pole in
NEMA Type 1 enclosure with 230-240-Volt, 60-Hertz coil
2. Order forms not listed or with special modifications by complete
description using a listed Product Number as reference wherever
possible.
Example: Similar to CR309D103 except with three-position
ORWARD-REVERSE-STOP push button in cover.
F
Total
3. Reversing starters are available with coils of other ratings than
those shown in listing on pages 1-18 and 1-19. Refer to coil suffix table on page 1-4 for information. To order forms with other
coil ratings, insert suffix from coil table in place of fifth and sixth
numbers of listed starter Product Number shown on page 1-18
or 1-19.
Example: A CR309C102 NEMA Size 1 reverser in Type 1 enclosure
with 24-Volt, 60-Hertz coil becomes a CR309C124.
4. 50-Hertz Forms
Pricing for 50-Hertz forms is the same as shown in tables for
60-Hertz reversing and combination reversing starters. Order by
description using a listed Product Number as reference. Refer to
page 1-4 for horsepower ratings of starters at 380-Volt, 50
Hertz.
5. Starters Less Overload Relays
CR309 open NEMA Types 1 and 3R reversing starters (with horizontal mechanical interlock) are available without overload relays.
The following table shows omission prices to be deducted from
those list prices as shown in tables on pages 1-18 and 1-19. Order
desired form by adding the suffix, in parenthesis, to Product
Number of Open, Types 1, 3R, 4/4X, and 12 forms shown in pricing
table on pages 1-18 and 1-19, that include overload relays.
Example: To omit overload protection from a size 0 starter, Product
Number CR309B103, order CR309B103BAA
Typical CR309 Re vers in g Starter
6. Product Notes
Motor full-load current should not exceed continuous ampere
rating of starter. External reset not included on standard listed
forms (NEMA Type 12).
Order heaters by complete Product Number from appropriate
heater tables on pages 1-153 to 1-159.
Reference Publications
Descriptive bulletin GEA-10928
Instructions
NEMA Size Publication Number
00, 0, 1 GEH-5190
2 GEH-4775
3 GEH-4806
4 GEH-4807
5 GEH-4839
6 GEH-5198
CR309 Magnetic Reversing Starters – Contents
Application Information and Selection Instructions ...............1-17
Non-combination, NEMA Sizes 00-7
with Thermal Overload Relays, Three-Phase ..........................1-18
Non-combination, NEMA Sizes 00-1
with Thermal Overload Relays, Single-Phase..........................1-19
Outlines and Dimensions ....................................................................1-20
Rev. 4/16
Prices and data subject to
change without notice
Control Catalog
1-17
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