Siemens 3RB1066-2GG0 Overload Relay - 55-250A

The Siemens 3RB1066-2GG0 is a high-capacity thermal overload relay for motor protection, covering an adjustable current range of 55 to 250 A with a Class 20 tripping characteristic. It is designed for continuous mounting on contactors or individual mounting, and features busbar connections for the main circuit and screw terminals for the auxiliary circuit, with manual-automatic reset.

This relay is suited for protecting very large industrial motors in critical applications such as heavy-duty mining equipment, large industrial fans, and complex processing machinery where robust and reliable protection is essential. Its Class 20 rating provides a slightly slower trip response, suitable for motors with high starting currents or longer acceleration times.

Stanlo Automation, your veteran-owned source for surplus industrial automation parts, offers the Siemens 3RB1066-2GG0. We provide access to essential, high-quality surplus components, enabling cost-effective maintenance and expansion of your automation systems.