Siemens 3RU2126-1HB0 Overload Relay S0 Frame 5.5–8A Screw Terminal

Siemens 3RU2126-1HB0 Overload Relay — S0 Frame, 5.5–8A, Screw Terminal

The Siemens 3RU2126-1HB0 is a thermal overload relay engineered for dependable motor protection in HVAC, commercial, and industrial applications. Designed for the S0 contactor frame size, this relay provides adjustable overload protection across a 5.5–8A current range and features convenient screw terminal connections for secure, field-ready wiring.

Key Features

• Thermal overload relay designed for motor protection in HVAC and industrial systems
• Compatible with S0 frame size contactors and motor starters
• Adjustable current setting range: 5.5–8A
• Screw terminal connections for reliable, vibration-resistant wiring
• Manual and automatic reset capability for flexible operation
• Integrated trip indicator for fast fault identification
• Phase failure sensitivity helps prevent motor damage from single-phasing
• Compact design for panel space efficiency

Specifications

• SKU: 3RU2126-1HB0
• Brand: Siemens
• Type: Thermal Overload Relay
• Frame Size: S0
• Current Range: 5.5–8A
• Terminal Type: Screw

Application

Ideal for use with Siemens 3RT series contactors and motor starters in HVAC equipment, pumps, fans, compressors, and other motor-driven loads requiring reliable overcurrent protection.