Siemens 3RT2446-1NB30 3-Pole Contactor — 140A 690V 20-33V AC/DC
Siemens 3RT2446-1NB30 3-pole AC-1 Contactor
The Siemens 3RT2446-1NB30 is a 3-pole contactor for AC-1 applications, rated at 140 A and 690 V. It features a versatile 20-33 V AC/DC coil voltage for 50/60 Hz operation and includes an integrated varistor for surge suppression. This S3 size contactor is equipped with 1 NO + 1 NC auxiliary contacts. The main circuit uses box terminals, while the control and auxiliary circuits utilize screw terminals.
This high-capacity contactor is suited for demanding industrial applications, including motor control, power switching, and automation systems where surge protection is beneficial. It serves industries such as energy, heavy manufacturing, and infrastructure.
Stanlo Automation, a veteran-owned surplus distributor, offers the Siemens 3RT2446-1NB30 at competitive prices. Rely on us for quality surplus industrial parts to keep your systems running efficiently and cost-effectively.
| Type | Contactor AC-1 |
| Current Rating | 140 A (AC-1) |
| Voltage Rating | 690 V |
| Coil Voltage | 20-33 V AC/DC |
| Frequency | 50/60 Hz |
| Poles | 3 |
| Auxiliary Contacts | 1 NO + 1 NC |
| Integrated Varistor | Yes |
| Size | S3 |
| Terminals | Box (main), Screw (control/aux) |