Mechanical engineers tend to rely on other professional for design and production of electrical items, but that may cause losses in product delivery time, cost, and standardization practices. Here, electrical enclosure interior designs are discussed.

(1) Item to include in electrical enclosures

	・	Circuit breakers
	・	Programmable logic controller (PLC)
	・	Power supply (PS)
	・	Motor driver (PMD)

The items above are connected using terminal strips (H49), DIN rails (H59), and wire conduits (W79) and mounted inside the enclosure.

(2) Interior layout of electrical enclosure

The enclosure interior layout should be made simple and easy for wire tracing. Choose an enclosure with ample capacity for the following reasons.

	1.	Provide ample space between each component for easy maintenance.
	2.	Anticipate future expansion possibilities when choosing the enclosure.

[Fig.1] and [Photo 1] show the layout of an enclosure of the catalog example. The terminal strips are labeled to prevent careless errors.