The NH4 Switch Disconnector is designed to provide safe circuit isolation and switching in low-voltage electrical systems. Built to IEC/EN 60947-3 standards, it ensures reliable manual disconnection under load. The NH4 series is compatible with NB series MCBs and RCBOs, offering a wide rated current range from 32A to 125A and operating voltage up to 415V AC. Its compact design, IP20 protection, and long mechanical life (8,500 operations) make it ideal for residential, commercial, and light industrial applications.

Technical Specification: 

• Standard Compliance: IEC/EN 60947-3
• Function: Manual load disconnection and isolation
• Compatible Devices: NB series MCBs / RCBOs
• Rated Current (Ie): 63A
• Rated Voltage (Ue): 415V (2P)
• Rated Frequency: 50/60Hz
• Utilization Category: AC-22A
• Mechanical Life: 8,500 operations
• Terminal Connection Type: Cable, pin-type, or U-type busbar
• Terminal Size: Cable: up to 35mm² (AWG 18–2), Busbar: 18mm² (AWG 1/0)
• Connection Method: From top or bottom
• Mounting: DIN rail or panel mount
• Dimensions (mm): 2P: H=77, W=36

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