Need help identifying air compressor motor (information from plate provided)
#1
09-05-08, 07:49 PM
Need help identifying air compressor motor (information from plate provided)
I have a sears compressor, with what appears to be an aftermarket pump and motor. I'm trying to figure out what HP my motor is. Here is everything I can interpret from the motor plate:
I tried doing a few searches through Emmerson's eCatalog, but didn't have any luck.
BTW, what size breaker should I use if the motor pulls 21A?
DOERR
Emerson Electric St Lous, MO USA
Defeinite Purpose
Compressor Motor LR22132
MTR REF R612184AC102B HP SPCL RPM 3450
Hz 60 FR L 143T KVA CODE F TYPE T
INS CLASS BR MAX AMB 40deg C DES PH 1
VOLTS 230 DUTY CONT SF 1.0
AMPS 21.0 EFF PFF
SFA
Thermally Protected Manual BRG SE BRG OSE
CUST PN
MC301527
Emerson Electric St Lous, MO USA
Defeinite Purpose
Compressor Motor LR22132
MTR REF R612184AC102B HP SPCL RPM 3450
Hz 60 FR L 143T KVA CODE F TYPE T
INS CLASS BR MAX AMB 40deg C DES PH 1
VOLTS 230 DUTY CONT SF 1.0
AMPS 21.0 EFF PFF
SFA
Thermally Protected Manual BRG SE BRG OSE
CUST PN
MC301527
BTW, what size breaker should I use if the motor pulls 21A?
#3
09-06-08, 04:48 AM
Banned. Rule And/Or Policy Violation
Join Date: Nov 2007
Posts: 495
Upvotes: 0
Received 0 Upvotes
on
0 Posts
Ever hear of Google? Just type the model number in and you get a bunch of returns.
2hp
http://cgi.ebay.com/DOERR-EMERSON-EL...080825126r4507
2hp
http://cgi.ebay.com/DOERR-EMERSON-EL...080825126r4507
#4
09-06-08, 07:38 AM
Originally Posted by oneofamill
Ever hear of Google? Just type the model number in and you get a bunch of returns.
2hp
http://cgi.ebay.com/DOERR-EMERSON-EL...080825126r4507
2hp
http://cgi.ebay.com/DOERR-EMERSON-EL...080825126r4507
#5
09-07-08, 05:03 AM
I would put it somewhere between 4 and 5 TRUE hp. The formula is current x voltage/746, but these motors are usually only 80% efficient, so 21x220/746x0.8 = 4.9. Use a 30 amp breaker and since the SF is 1.0, try not to overload the motor.
