Fusing the Mains Connection

General

This data is only valid for fusing the mains connection of each Lexium 62 Power Supply module:

Protect the power supply against any short-circuit and overload using appropriate measures.
Set the overload protection depending on the permanent current of the device:
- Lexium 62 Power Supply (LXM62PD84A11000) maximum of 40 A (3-phase),
- Lexium 62 Power Supply (LXM62PD20A11000) maximum of 10 A (3-phase).

NOTE: The opening of the branch-circuit protective device (fuses in the case of UL conformance, or any circuit breaker) may be an indication that an invalid condition has been interrupted. To reduce the risk of fire or electric shock, current-carrying parts and other components of the system should be examined and replaced if damaged. If burnout of the current element of an overload relay occurs, the complete overload relay must be replaced. In any and all cases, determine the source of the opening of the branch-circuit protection before re-applying power to the system.

DANGER
	FIRE, ELECTRIC SHOCK OR ARC FLASH Examine and replace if necessary any current-carrying parts or other motor control components in the case of mains- or branch-circuit protection activation. Failure to follow these instructions will result in death or serious injury.

Suitable Combinations

Combine mains contactor and motor protection switch for protection of a Lexium 62 Power Supply as follows:

Mains current	DC bus current (with mains lines reactor)	Connection type	Protection Lexium 62 Power Supply (LXM62PD20A11000)	Protection Lexium 62 Power Supply (LXM62PD84A11000)
16 A	≤ 8 A	1-phase	Circuit breaker iC60N, characteristic C, 16 A	–
20 A	≤10 A	1-phase	Circuit breaker iC60N, characteristic C, 20 A	–
9.5 A	≤ 10 A	3-phase	TeSys Model U LUB12 with LUCA12BL	–
12 A	≤ 12.5 A	3-phase	–	TeSys Model U LUB12 with LUCA12BL
18 A	≤19 A	3-phase	–	TeSys Model U LUB32 with LUCA18BL
32 A	≤ 33.5 A	3-phase	–	TeSys Model U LUB32 with LUCA32BL
40 A	≤ 42 A	3-phase	–	Mains contactor LC1D40ABD motor protection switch GV3P40

Limit the external 24 Vdc supply to the Lexium 62 Power Supply module with adequate means to 50 A.