Eaton ZB32-1 Thermal Overload Relay 0.6-1 A, Class 10A, 3-Pole, 1NO+1NC, Black/White 278446

The Eaton ZB32-1 thermal overload relay offers precise protection for motors with a current adjustment range of 0.6 to 1 A. Unlike generic relays, it combines phase failure sensitivity with a manual/automatic reset function, ensuring reliable operation in industrial control systems.

Highlights

• Adjustable overload protection from 0.6 A to 1 A
• Class 10A trip characteristic for standard motor starting
• Direct mounting on Eaton DILM7 to DILM32 contactors
• 1 NO + 1 NC auxiliary contacts for signaling
• Phase failure sensitivity prevents motor damage

In daily use

The ZB32-1 mounts directly onto compatible Eaton contactors, simplifying wiring and saving panel space. Its screw terminals accept a range of conductor sizes, and the manual/automatic reset selector adapts to different operational needs. The relay operates reliably from -25 °C to 55 °C, making it suitable for demanding environments.

Full specifications

• Product type: Thermal overload relay
• Current adjustment range: 0.6 - 1 A
• Trip class: Class 10A
• Number of poles: 3
• Auxiliary contacts: 1 NO + 1 NC
• Mounting: Direct to contactor (DILM7 to DILM32)
• Reset function: Manual/automatic
• Protection: Overload, phase failure sensitivity
• Rated insulation voltage (Ui): 690 V
• Rated impulse withstand voltage (Uimp): 6 kV
• Operating temperature: -25 to 55 °C
• Storage temperature: -40 to 80 °C
• Degree of protection: IP20
• Connection: Screw terminals
• Standards: IEC/EN 60947, VDE 0660, UL, CSA
• Colour: Black/White
• Weight: 142 g

Final note

With its compact design and direct contactor mounting, the ZB32-1 is a practical choice for motor protection in industrial applications.