Overview:
The NXZM-250S/4B 160A is a compact and intelligent automatic transfer switch designed to ensure uninterrupted power supply by switching between utility and backup sources. With advanced protection features and a 4-pole configuration, it’s ideal for residential, commercial, and light industrial applications.

Technical Specifications:

• Brand: CHINT
• Model: NXZM-250S/4B
• Rated Current: 160A
• Poles: 4-pole
• Rated Voltage: 400VAC / 415VAC
• Control Voltage: 230VAC / 240VAC
• Frequency: 50/60Hz
• Switching Time: ≤3 seconds
• Contact Material: Silver alloy
• Mechanical Life: 10,000+ operations
• Mounting: Surface or DIN rail
• Enclosure Material: Flame-retardant plastic
• Operating Temperature: -25°C to +70°C
• Certifications: IEC 60947-6-1, CE, CB, KEMA

Protection Features:

• Overload and short-circuit protection
• Overvoltage and undervoltage protection
• Phase failure detection
• Generator/grid interlock compatibility
• Fire control feedback and linkage

Applications:

• Residential backup systems
• Commercial buildings
• Light industrial facilities
• Generator integration for critical loads