FR-E840-0040-4-60 is a model of Mitsubishi inverter.
Other module number as follow:
FR-D740-0.4K-CHT | FR-D740-0.75K-CHT | FR-D740-1.5K-CHT |
FR-D740-2.2K-CHT | FR-D740-3.7K-CHT | FR-D740-5.5K-CHT |
FR-D740-7.5K-CHT | FR-E840-0016-4-60 0.4K | FR-E840-0026-4-60 0.75K |