✅ CHINT 393391 – NH40-250/3CSW Change Over Switch 3-pole change over switch with extended handle for inside cabinet operation, rated 250A. Designed for robust electrical switching needs in industrial and commercial power systems. 🔹 Description (English): The CHINT 393391 – NH40-250/3CSW is a heavy-duty 3-pole manual change over switch rated at 250A, engineered for reliable and safe transfer of power sources in demanding electrical environments. It supports secure switching between two three-phase power supplies in low-voltage industrial and commercial installations. This switch includes an extended handle for internal cabinet operation, enhancing user safety by minimizing exposure to live parts during operation. Its single-cast switch construction ensures mechanical strength and consistent performance under heavy loads. Supporting voltages from 220V to 415V and certified to CE standards, it is ideal for critical load management applications. 🔹 Key Features: • Rated current: 250A • Rated operational voltage: 220V/230V/240V, 380V/400V/415V • 3-pole configuration for three-phase systems • Extended handle for internal cabinet operation • Durable single-cast switch body • Manual switching for power source transfer • Suitable for heavy industrial and commercial power distribution • CE certified for quality and safety compliance 🔹 Technical Specifications (English): Parameter Value Model NH40-250/3CSW Part Number CHINT 393391 Rated Current 250A Number of Poles 3P Rated Operational Voltage 220V / 230V / 240V / 380V / 400V / 415V Switch Type Single-cast Manual Change Over Switch Operation Method Extended Handle (Internal Operation) Mounting Panel-mounted (Inside Cabinet) Application Power Source Transfer / Load Switching Certification CE