Pipe organ electrical panel

This circuit breaker panel is a typical American style. This particular one is a "subpanel" (downstream of the main panel) in a large house that houses, uniquely, a large pipe organ. It serves as overcurrent protection for the pipe chamber lighting circuits and the two 3-phase blowers that supply air to the organ, and also the various accessories of the organ and HVAC supplies that keep the pipe chambers at the proper temperature. The circuit breakers also function as the on-off switches for these things.