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INDUSTRIAL SIZE
1 STARTER
NEMA 1/4/12 901004
AND NEMA 7/9 901007
© 2006, The Chamberlain Group, Inc.
01-13428B All Rights Reserved
INDUSTRIAL SIZE 1 STARTER UPGRADE, NEMA 1/4/12 90-1004
FUNCTIONS
Upgrades the reversing starter in a NEMA 1/4/12 Combination Reversing Starter from an industrial size 0 to a size 1. May
provide longer starter life in applications where large horsepower door operators experience high usage and frequent
reversing.
INDUSTRIAL SIZE 1 STARTER UPGRADE, NEMA 7/9 90-1007
FUNCTIONS
Upgrades the reversing starter in a NEMA 7/9 Combination Reversing Starter from an industrial size 0 to a size 1. May provide
longer starter life in applications where large horsepower door operators experience high usage and frequent reversing.
WIRING
Refer to the wiring diagram provided with the operator. If this diagram is missing or you are unsure of wiring requirements,
please call Technical Support at 1-800-528-2806.
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