Load Information

Loads on devices are defined by the following fields.

Panel Description: The description shown on the panel schedule for the load. Each receptacle and low voltage device load can have a different description.

This field is not used for equipment loads. All of the equipment loads use the single Panel Description field for the equipment.

Load Type: The type of load. The calculated load for each load type is handled differently.

Lighting: The calculated load is fixed at 125% of the connected load.
Single Motor: The calculated load is fixed at 125% for the largest single motor. The calculated load of all of the other single motor loads is fixed at 100%.
Multiple Motors: The calculated load is fixed at 100% for multiple motors. If there are no single motor loads, the largest multiple motors load is treated as the largest single motor load and the calculated load for that motor is fixed at 125%.
Receptacle: The calculated load is fixed at 100% of the first 10 kVA and 50% of the load after that.
Continuous: The calculated load is fixed at 125% of the connected load.
Heating: The calculated load is fixed at 125% of the connected load.
Cooling, Single Motor: The calculated load is fixed at 125% for the largest single motor. The calculated load of all of the other single motor loads is fixed at 100%.
Cooling, Multiple Motors: The calculated load is fixed at 100% for multiple motors. If there are no single motor loads, the largest multiple motors load is treated as the largest single motor load and the calculated load for that motor is fixed at 125%.
Heating and Cooling Motor: The calculated load is fixed at 125% of the connected load.
Noncontinuous: The calculated load is fixed at 100% of the connected load.
Kitchen: The calculated load is based upon the number of pieces of kitchen equipment, using NEC Table 220.56. The number of pieces of equipment that are represented by the load is entered in the Demand Factor field.
Diverse: The calculated load is based upon the specified demand factor. The Demand Factor field is a decimal that represents the percentage to multiply the connected load by.
Custom 1: The calculated load is based upon the Custom Load 1: Calculation Method option. See the Circuits, Load Types, and Wire Sizes section for more information.
Custom 2: The calculated load is based upon the Custom Load 2: Calculation Method option. See the Circuits, Load Types, and Wire Sizes section for more information.
Small Appliance: The calculated load is fixed at 125% of the connected load.
Laundry: The calculated load is fixed at 125% of the connected load.
Appliance, Continuous: The calculated load is based upon the number of appliances, using NEC Table 220.53. The number of pieces of equipment that are represented by the load is entered in the Demand Factor field.
Appliance, Noncontinuous: The calculated load is based upon the number of appliances, using NEC Table 220.53. The number of pieces of equipment that are represented by the load is entered in the Demand Factor field.
Appliance Motor: The calculated load is fixed at 125% of the connected load.
Electric Dryer: The calculated load is based upon the number of appliances, using NEC Table 220.54. The number of pieces of equipment that are represented by the load is entered in the Demand Factor field.
Electric Cooking: The calculated load is based upon the number of appliances, using NEC Table 220.55. The number of pieces of equipment that are represented by the load is entered in the Demand Factor field.
Dwelling Unit Heating: The calculated load is based upon the number of heating units, using NEC Table 220.82. The number of pieces of equipment that are represented by the load is entered in the Demand Factor field.
Dwelling Unit Cooling, Single Motor: The calculated load is fixed at 125% for the largest single motor. The calculated load of all of the other single motor loads is fixed at 100%.
Dwelling Unit Cooling, Multiple Motors: The calculated load is fixed at 100% for multiple motors. If there are no single motor loads, the largest multiple motors load is treated as the largest single motor load and the calculated load for that motor is fixed at 125%.
Dwelling Unit Heating and Cooling Motor: The calculated load is fixed at 125% of the connected load.
Marina / Mobile Home / RV: The calculated load is based upon the number of marina receptacles, mobile home lots, or RV sites. The number of units that are represented by the load is entered in the Demand Factor field.

Horsepower: The horsepower of the motor load. This field only exists for equipment. The Connected field be set based upon the horsepower using NEC Table 430.248 for single-phase motors and NEC Table 430.250 for three-phase motors.

Connected (KVA): The connected load in kVA.

Demand (KVA): The connected load after the demand factor has been calculated. For most load types, this field will be disabled and filled in automatically based upon the connected load. It will be enabled for Custom 1 and Custom 2 if the Calculation Method is set to Variable Calculated Load.

Demand Factor: The multiplier used to calculate the demand load from the connected load. For most load types, this field will be disabled and automatically filled in.

It will be enabled for Kitchen, Diverse, Appliance, Continuous, Appliance, Noncontinuous, Electric Dryer, Electric Cooking, Dwelling Unit Heating, and Marina / Mobile Home / RV. The value is the number of units of that load type. It will also be enabled for Custom 1 and Custom 2 if the Calculation Method is set to Variable Demand Factor.


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