ABB

ABB at Latrand combines protection and control equipment, electrical distribution boards and installation finishing elements. Distinguish product function from parameters for precise selection: identical rated current alone does not mean identical purpose or compatibility.

Start with the device's function

The circuit breakers and protection devices section presents miniature and power circuit breakers, RCDs/RCBO, disconnectors and surge arresters. Titles distinguish poles, rated current, characteristic and breaking capacity. Read these data separately: the value in A and the value in kA describe different parameters. When comparing breaking capacity, conditions must also be comparable, including the standard and voltage. A larger number in one row is not sufficient grounds for replacing another device.

Select the contactor and motor protection separately

The AF contactors section helps distinguish contactor equipment from MS motor protection devices. For contactors, the distinction between the main power circuit and control coil matters. The permissible AC-3 current and power depend on operating voltage, so a value for one operating point must not be used for all others.

For the specific AF16-30-10-13, the control range is 100–250 V AC/DC. This is a characteristic of the exact variant, rather than a general rule for every item beginning with AF16. When comparing similar designations, check the complete code, control voltage and auxiliary contact configuration. A similar family name helps orientation but does not remove these distinctions.

Equipping a distribution board and visible mechanisms

For electrical distribution boards , distinguish the enclosure from the door, mounting plate, busbars and other accessories. The required component must match the specific size and version; the brand's accessories do not form a universal kit. Basic 55 mechanisms and panels are also shown separately, as are Compact relays, buttons and lights. Selecting a visible panel and selecting equipment inside the distribution board serve different tasks. Prepare the list by function and exact code to compare matching products instead of mixing all equipment in one group.