NM8NSD-250AC-3P is the CHINT 250A 3-pole AC switch disconnector version of the NM8N frame.  This switch disconnector version is a heavy-duty isolating switch. Designed for safe power isolation in commercial and industrial electrical systems. Ideal for use as a main switch, load break isolator, or switchboard disconnect device. 

Key specifications

• Rated current: 250A
• Poles: 3 Pole
• Series: NM8N / NM8
• Application: Main switch/switch disconnector
• Rated voltage: up to 690V AC
• Frame size: 250AF
• AC application
• Insulation Voltage Ui: 1000V
• Short-time withstand current: 3.2kA /1s
• Mechanical life: 15,000-25,000 operations
• Electrical Life: ~6,000–10,000 operations
• Mounting: Fixed/panel mount
• Standards: IEC/EN 60947-3