Eaton ZB150-100 Thermal Overload Relay 80-100 A, Black/White 278464

The Eaton ZB150-100 thermal overload relay protects motors in the 80–100 A range with a trip class 10A response, making it a dependable choice for demanding industrial motor control. Its direct mounting to DILM115, DILM150, and DILM170 contactors simplifies installation and reduces wiring effort.

Highlights

• Adjustable current setting from 80 A to 100 A
• Phase failure sensitivity and temperature compensation for reliable protection
• Selectable manual or automatic reset function
• 1 NO + 1 NC auxiliary contacts for control and signaling
• Direct mounting to compatible Eaton contactors

In daily use

The ZB150-100 offers straightforward setup with screw terminals and a clear adjustment dial. Its IP20 housing is intended for installation in enclosed control panels. The relay’s temperature compensation helps maintain consistent trip behavior across varying ambient temperatures, while phase failure sensitivity protects against single-phasing conditions.

Full specifications

• Product type: Thermal overload relay
• Current setting range: 80–100 A
• Rated operational current: 100 A
• Trip class: 10A
• Number of poles: 3
• Auxiliary contacts: 1 NO + 1 NC
• Rated insulation voltage: 690 V AC
• Rated impulse withstand voltage: 6 kV
• Mounting: Direct to contactor
• Reset function: Manual/automatic selectable
• Temperature compensation: Yes
• Phase failure sensitivity: Yes
• Degree of protection: IP20
• Operating temperature: -25 to +60 °C
• Connection type: Screw terminals
• Colour: Black/White

Final note

The ZB150-100 is a robust thermal overload relay for high-current motor protection, especially when paired with Eaton DILM contactors.