General Electric Heater Coil

Heater Selection Information

To prevent overloading the starter, do not select heater(s)
for a motor of larger rating than the maximum given on the
nameplate for the starter.

For continuous rated motors, with a service factor of 1.15 to
1.25,select the heater with maximum motor amperes equal
to or immediately greater than the motor full-load current
(provides a maximum of 125 percent protection). For
continuous rated motors with no service factor, multiply the
full-load current of the motor by 0.90 and use this value to
select the heater.

How to Select Heaters

The table below should be used to determine which column of
motor full load amperes applies for heater selection. Select in
order, the base catalog number, the NEMA type of enclosure,
and the column to be used in the proper table by NEMA size.
If full-load amperes of the motor falls between two ratings,
select heaters for the higher rating.

Series	Description	Heater Table Column
CR306	3 phase, 3 pole, 3 leg protection standard	C
	ambient compensated (except size 3 & 4)	D
	ambient compensated size 3	D
	ambient compensated size 4	E

Table for CR110H & CR110Y Manual Starters … click here

General Electric
NEMA SIZES 00, 0 and 1					NEMA SIZE 2					NEMA SIZE 3
Catalog Number	Maximum Motor – Full Load Amps				Catalog Number	Maximum Motor – Full Load Amps				Catalog Number	Maximum Motor – Full Load Amps
Catalog Number	A	B	C	D	Catalog Number	A	B	C	D	Catalog Number	C	D
CR123C118A	1.12	1.09	1.04	1.02	CR123C592A	5.92	5.79			CR123F357B	31.8	31.3
CR123C131A	1.26	1.22	1.15	1.10	CR123C630A	6.23	6.12	5.85	5.72	CR123F430B	37.6	34.3
					CR123C695A	6.63	6.49	6.47	6.30	CR123F487B	41.9	40.9
CR123C148A	1.40	1.31	1.27	1.23	CR123C778A	7.72	7.59	7.35	7.04
CR123C163A	1.46	1.46	1.39	1.38	CR123C867A	8.96	8.71	8.06	7.91	CR123F614B	52.1	51.1
CR123C184A	1.63	1.59	1.55	1.49						CR123F772B	68.1	63.3
CR123C196A	1.79	1.74	1.73	1.67	CR123C104B	10.4	10.1	9.61	9.27
CR123C220A	1.97	1.93	1.89	1.79	CR123C113B	11.7	11.2	10.5	9.99	CR123F848B	71.5	66.1
					CR123C125B	12.1	11.9	11.6	11.1	CR123F114C	90.0	90.0
CR123C239A	2.25	2.13	2.05	1.98	CR123C137B	13.5	12.6	12.5	12.1
CR123C268A	2.43	2.37	2.28	2.24	CR123C151B	14.7	14.5	13.6	13.1
CR123C301A	2.60	2.52	2.47	2.43
CR123C326A	2.96	2.87	2.79	2.75	CR123C163B	18.3	17.7	16.7	15.5
CR123C356A	3.57	3.39	3.31	3.25	CR123C180B	20.1	19.1	17.9	16.8
					CR123C198B	22.3	21.4	18.7	18.0
CR123C379A	3.86	3.59	3.70	3.43	CR123C214B	25.0	22.9	20.4	19.7
CR123C419A	4.43	4.31	4.06	4.03	CR123C228B	27.7	24.7	22.7	21.6
CR123C466A	4.87	4.57	4.47	4.43
CR123C526A	5.37	5.31	4.95	4.94	CR123C250B	29.3	25.9	24.7	23.9
CR123C592A	5.99	5.86	5.49	5.36	CR123C237B	30.7	27.1	26.3	25.5
					CR123C303B	32.7	30.2	29.5	28.2
CR123C630A	6.39	6.19	5.91	5.77	CR123C330B	35.6	34.8	32.5	31.6
CR123C695A	6.87	6.61	6.47	6.35
CR123C778A	7.71	7.61	7.20	6.92	CR123C400B	45.0	45.0	41.9	37.8
CR123C867A	8.72	8.46	8.22	7.99	CR123C440B			43.2	40.6

CR123C104B	10.5	10.4	9.67	9.19
CR123C113B	11.7	11.3	10.4	10.0
CR123C125B	12.2	11.9	11.0	10.7
CR123C137B	13.5	13.0	12.4	12.0
CR123C151B	15.1	14.5	13.2	12.9

CR123C163B	17.5	17.4	15.4	15.1
CR123C180B	18.9	18.6	17.1	16.3
CR123C198B	20.8	20.5	18.1	17.9
CR123C214B	22.4	22.3	20.0	19.7
CR123C228B	25.5	25.7	22.5	21.2

CR123C250B	26.2	25.7	22.5	22.3
CR123C273B	27.0	27.0	23.9	22.3
CR123C303B			26.3	25.5
CR123C330B			27.0	27.0

The table below gives a proper size heater to trip the switch
at approximately 125 per cent of motor current.
Listed values are for motors with 1.15/1.25 service factor.
For continuous rated motors with a service factor of 1.0,
multiply full-load current of motor by 0.9 and use this value
to select heater. If motor full-load amperes falls between
two ratings, select heater for the higher rating.
For 1.35 service factor motors, multiply full-load current of
motor by 1.15 and use this value to select heater(s).

Max Full-load amps	Heater Catalog Number
3.88	CR123H446A
4.60	CR123H529A
5.00	CR123H575A

5.43	CR123H625A
6.41	CR123H739A
6.98	CR123H802A

8.25	CR123H950A
10.6	CR123H122A
13.6	CR123H157A