Moeller ZB12-12 Overload Relay

Description:

The Moeller ZB12-12 Thermal Overload Relay is an electromechanical motor protection relay used in industrial motor control and starter systems. Commonly installed with contactors in conveyor systems, pumps, compressors, HVAC equipment, and manufacturing machinery requiring overload and phase-loss protection. Maintenance teams, OEMs, and system integrators use this overload relay for equipment repairs, motor starter retrofits, and replacement of existing overload protection devices.

Applications:

The Moeller ZB12-12 is designed to provide thermal overload and phase-loss protection for three-phase motors in industrial environments. It is commonly used in motor control centers, conveyor systems, pumping stations, compressors, fans, and manufacturing equipment where reliable motor protection is required to minimize downtime and extend equipment life.

Technical Specifications:

• Manufacturer Part Number (MPN): ZB12-12
• Product Type: Thermal Overload Relay
• Series: ZB12
• Manufacturer: Moeller (Eaton)
• Adjustable Current Range: 9 to 12 A
• Relay Type: Electromechanical Thermal Overload Relay
• Protection Functions: Overload Protection and Phase-Loss Sensitivity
• Tripping Class: Class 10A
• Number of Poles: 3
• Auxiliary Contacts: 1 NO + 1 NC
• Reset Function: Manual or Automatic Reset
• Mounting Type: Direct Mount to Contactor or Standalone Mount
• Compatible Contactors: Moeller DILM and DIL Series Contactors
• Rated Operational Voltage: Up to 690 VAC
• Rated Frequency: 50/60 Hz
• Degree of Protection: IP20
• Terminal Type: Screw Terminals
• Operating Temperature Range: -25°C to +55°C
• Standards: IEC 60947-4-1, UL 508, CSA C22.2
• Certifications: CE, UL Listed, CSA Certified
• Application Environment: Industrial motor control panels and automation systems

Common Replacements:

• Eaton ZB12-16
• Eaton XTOB012BC1
• ABB TA25-DU12