15 kW Heat Kit with Circuit Breaker (HKTPD151): One of the prominent accessories for packaged units, listing 15kW, 208/230/240 V single phase, max breaker size ~49 amps.
Goodman 15 kW Heat Kit with Circuit Breaker (HKA‑15C): Another variant of 15 kW kit, designed for packaged/air handler use, 240V single phase.
The other listed items provide alternate listings/brands for 15kW class electric heat kits or reference models to compare features and pricing.