Power Manual Transfer Switch NLZ1 63 Overview A compact 4 pole manual transfer switch designed to change power supply circuits reliably for rated voltage 400 VAC and rated current 63 A. Builtin overload and short circuit response protects connected circuits while the single side interlock prevents simultaneous operation of both sources. Key features Switch function: Manual transfer switch for switching power supply circuits at 400 VAC, 63 A, with overload and short circuit response. Single side interlock: Handle of the right breaker is mechanically interlocked with the internal trip mechanism of the left breaker. Opening the right breaker trips the left breaker and prevents the left from being opened while the right is open. Durable materials: PC Mystical/Fantasy retardant cover for good insulation and temperature resistance. Silver alloy contacts provide reliable conductivity and wear resistance. Clear status indication: Three color window provides immediate visual status: red means tripping, yellow means overload, green means normal operation. Compact installation: Designed for 35 mm DIN rail mounting for quick and practical installation in panels and enclosures. Performance and specifications Model: NLZ1 63 Item type: Power Manual Transfer Switch Rated voltage: 400 VAC Rated current: 63 A Rated frequency: 50/60 Hz Poles: 4P Short circuit connection capacity: 3000 A Short time withstand current: 1500 A for 1 s Electrical life: greater than 1500 times Mechanical life: greater than 8500 times Protection grade: IP20 Ambient temperature range: 5 to 40 C Terminal cable size: 16 mm2 Installation: 35 mm DIN rail Size: Approx. 72 x 85 x 63 mm / 2.8 x 3.3 x 2.5 in Why choose this switch Prevents improper source selection: The single side interlock prevents both power sources from being connected at once, reducing risk of backfeed during manual transfer. Easy to monitor: The three color window offers a quick visual check of status without additional tools. Simple to install: Standard 35 mm DIN rail mounting and a compact footprint save panel space and reduce installation time. Robust electrical performance: Designed to handle common short circuit and overload conditions typical in residential, mobile, and small generator setups. Typical applications Home backup generator systems for transferring between utility and generator power. Recreational vehicles and mobile homes to switch between onboard and external power sources. Small commercial or service panels where manual, reliable source selection is required. How to use Refer to the product images for wiring and operation guidance. Packing list 1 x Power Manual Transfer Switch 1 x Dual Power Manual Transfer Switch