current, respectively, of the motor-compressor as follows.

(1) Ampere Rating. The ampere rating shall be at least

115 percent of the nameplate rated-load current or
branch-circuit selection current, whichever is greater.

Exception: A listed unfused motor circuit switch, without fuseholders, having a horsepower rating not less than the equivalent horsepower determined in accordance with 440.12(A)(2) shall be permitted to have an ampere rating less than 115 percent of the specified current.

(2) Equivalent Horsepower. To determine the equivalenthorsepower in complying with the requirements of 430.109, the horsepower rating shall be selected from Table 430.248, Table 430.249, or Table

430.250 corresponding to
the rated-load current or branch-circuit selection current, whichever is greater, and also the horsepower rating from Table 430.251(A) or Table 430.251(B) corresponding to the locked-rotor current. In case the nameplate rated-load current or branch-circuit selection current and locked-rotor current do not correspond to the currents shown in Table 430.248, Table 430.249, Table 430.250, Table 430.251(A), or Table 430.251(B), the horsepower rating corresponding to the next higher value shall be selected. In case different horsepower ratings are obtained when applying these tables, a horsepower rating at least equal to the larger of the values obtained shall be selected.

(B) Combination Loads. Where the combined load of two or more hermetic refrigerant motor-compressors or one or more hermetic refrigerant motor-compressor with other motors or loads may be simultaneous on a single disconnecting means, the rating for the disconnecting means shall be determined in accordance with 440.12(B)(1) and (B)(2).

(1) Horsepower Rating. The horsepower rating of the disconnecting means shall be determined from the sum of all currents, including resistance loads, at the rated-load condition and also at the locked-rotor condition. The combined rated-load current and the combined locked-rotor current so obtained shall be considered as a single motor for the purpose of this requirement as required by (l)(a) and (l)(b).

(a) The full-load current equivalent to the horsepower rating of each motor, other than a hermetic refrigerant motor-compressor, and fan or blower motors as covered in 440.6(B) shall be selected from Table 430.248, Table 430.249, or Table 430.250. These full-load currents shall be added to the motor- compressor rated-load current(s) or branch-circuit selection current(s), whichever is greater, and to the rating in amperes of other loads to obtain an equivalent full-load current for the combined load.

(b) The locked-rotor current equivalent to the

horsepower rating of each motor, other than a
hermetic refrigerant motor-compressor, shall be
selected from Table 430.251(A) or Table 430.251(B),
and, for fan and blower motors of the shaded-pole or
permanent split-capacitor type marked with the
locked-rotor current, the marked value shall be used.
The locked-rotor currents shall be added to the motor-
compressor locked-rotor current(s) and to the rating in
amperes of other loads to obtain an equivalent locked-
rotor current for the combined load. Where two or
more motors or other loads such as resistance heaters,
or both, cannot be started simultaneously, appropriate
combinations of locked-rotor and rated-load current or
branch-circuit selection current, whichever is greater,
shall be an acceptable means of determining the
equivalent locked-rotor current for