ABB AF16Z-30-22-21 1SBL176001R2122 2-stack 3-pole Contactors AC/DC

Contact configuration: "22 - 21" indicates the configuration of the auxiliary contacts. The first "22" indicates that there are 2 normally open auxiliary contacts and 2 normally closed auxiliary contacts; the last "21" further clarifies the contact state combination and implements specific control logic under different working states of the contactor. The normally open auxiliary contact is in an open state when the contactor is not energized, and is closed after energization; the normally closed auxiliary contact is the opposite.

Rated heating current: The rated heating current of the auxiliary contact is generally 6A, that is, the current value that the auxiliary contact can carry for a long time without overheating under specified conditions.

Rated control capacity:

For AC - 1 usage category (non-inductive or slightly inductive load), the rated control capacity of the auxiliary contact can generally reach 230V, 5A.

For DC - 12 usage category (resistive load), it can reach 24V, 5A.

Coil parameters

Coil voltage: Common specifications include AC24V, AC110V, AC230V, AC380V, DC24V, etc. The appropriate coil voltage needs to be selected according to the voltage of the control circuit to ensure the normal closure and release of the contactor.

Coil power consumption:

Power consumption when closure: usually ranging from a dozen watts to several dozen watts. For example, the power consumption of an AC230V coil at the moment of closure may be about 20W.

Power consumption when holding: relatively lower than when closure, generally around a few watts, such as the power consumption of an AC230V coil holding may be about 3W, which can reduce energy consumption and heat generation.