Eaton 255889 2-Pole Main Switch, Surface Mount, 25 A, IP65, 1NO+1NC

For industrial control panels and machine power isolation, the Eaton 255889 main switch provides a compact 2-pole disconnect solution with a 25 A rated uninterrupted current. Its surface-mount design and IP65 front protection suit harsh environments where reliable manual switching is required.

Key specifications

• Rated uninterrupted current (Iu): 25 A
• Number of poles: 2
• Mounting type: Surface mounting
• Auxiliary contacts: 1 N/O + 1 N/C
• Handle: Black rotary handle with locking ring
• Degree of protection (front): IP65
• Rated operational voltage (Ue): 690 V AC
• Rated impulse withstand voltage (Uimp): 6 kV
• Rated short-circuit making capacity (Icm): 0.8 kA at 400 V
• Rated short-time withstand current (Icw): 0.5 kA for 1 s
• Rated power AC-23A at 400 V: 11 kW
• Rated power AC-23A at 230 V: 5.5 kW
• Rated power AC-23A at 690 V: 11 kW
• Switching angle: 90°
• Terminal capacity: 1 x (1.5–6) mm² or 2 x (1.5–6) mm²

Why choose it

The switch combines a robust rotary handle with integrated auxiliary contacts for status feedback, simplifying wiring and reducing panel space. Its IP65 front rating ensures protection against dust and water jets, making it suitable for demanding industrial environments.

Ideal use cases

• Main disconnect for small machines and control panels
• Motor isolation in conveyor systems and pumps
• Heating and lighting circuit control in industrial buildings

Good to know

The switch meets IEC/EN 60947 and VDE 0660 standards. It supports conductor cross-sections from 1.5 to 6 mm², with the option to connect two conductors per terminal for daisy-chaining.