EATON ZB12-10 Motor Protection Relay, 6.3-10 A, Class 10, for DILM7-15 Contactors 278440

The EATON ZB12-10 is a thermal overload relay engineered for direct mounting onto DILM7, DILM9, DILM12, and DILM15 contactors, providing reliable motor protection in a compact, three-pole design. With an adjustable current range of 6.3 to 10 A and a Class 10 trip characteristic, it safeguards motors against overloads while allowing brief inrush currents during startup. Its selectable manual or automatic reset and built-in trip indication simplify troubleshooting, while temperature compensation from -25 to +55 °C ensures consistent performance across varying ambient conditions.

Highlights

• Adjustable overload setting from 6.3 to 10 A
• Class 10 tripping characteristic for standard motor protection
• Direct mounting to Eaton DILM7, DILM9, DILM12, and DILM15 contactors
• 1 NO + 1 NC auxiliary contacts for status signaling
• Manual or automatic reset, selectable
• Temperature compensated from -25 to +55 °C
• Test function for verifying trip mechanism

In daily use

Installation is straightforward: the relay clips directly onto the contactor, with screw terminals providing secure wiring. The auxiliary contacts allow integration into control circuits for remote indication or interlocking. The test function permits periodic checks of the protection circuit without interrupting the load. The relay’s IP20 protection is suitable for installation in enclosed control panels.

Full specifications

• Current adjustment range: 6.3 - 10 A
• Overload release class: Class 10
• Number of poles: 3
• Auxiliary contacts: 1 NO + 1 NC
• Rated insulation voltage (Ui): 690 V AC
• Rated impulse withstand voltage (Uimp): 6 kV
• Mounting: Direct to contactor
• Compatible contactors: Eaton DILM7, DILM9, DILM12, DILM15
• Reset function: Manual/Automatic (selectable)
• Trip indication: Yes
• Test function: Yes
• Temperature compensation: -25 to +55 °C
• Degree of protection: IP20
• Connection type: Screw terminals
• Ambient operating temperature: -25 to +55 °C
• Rated frequency: 50/60 Hz
• Short-circuit protection (auxiliary circuit): Max. 10A gG/gL fuse

Final note

The ZB12-10 is a reliable choice for protecting motors in industrial applications where space is limited and dependable overload protection is essential.