Eaton ZB32-2.4 Thermal Overload Relay for DILM17-32 Contactors (278448)

In industrial control panels, electricians and maintenance engineers rely on the Eaton ZB32-2.4 thermal overload relay to protect three-phase motors from overheating and phase failure. Designed for direct mounting onto Eaton DILM17, DILM25, or DILM32 contactors, it provides reliable protection for motor currents from 1.6 A to 2.4 A.

Key specifications

• Current setting range: 1.6 - 2.4 A
• Rated operational current: max. 2.4 A
• Rated insulation voltage: 690 V
• Trip class: 10A
• Number of poles: 3
• Auxiliary contacts: 1 NO + 1 NC
• Mounting: direct to contactor
• Reset: manual/automatic
• Phase failure sensitivity: yes
• Connection: screw terminals
• Ambient operating temperature: -25 to +55 °C
• Degree of protection: IP20
• Standards: IEC/EN 60947-4-1

Why choose it

The ZB32-2.4 offers precise thermal protection with a wide adjustment range, ensuring motors are safeguarded against overloads. Its compact design and direct mounting save panel space and simplify wiring. The manual/automatic reset and test button allow for easy commissioning and troubleshooting.

Ideal use cases

• Protecting small three-phase motors in conveyors, pumps, and fans
• Motor starter combinations with Eaton DILM contactors
• Applications requiring phase failure protection and trip class 10A

Good to know

The relay includes a stop button and test button for functional checks. It is suitable for use in control cabinets with IP20 protection. For reliable operation, ensure the contactor and relay are properly matched.