Eaton NAS63-CI-1 Grid Connection Protection Combination 63A 3P+N 400V AC 168106

The Eaton NAS63-CI-1 is a grid connection protection combination designed for distributed generation systems such as photovoltaic arrays and combined heat and power plants. It integrates monitoring and disconnection functions in a single DIN-rail mounted unit, ensuring compliance with VDE-AR-N 4105 without the need for separate protection relays and contactors.

Highlights

• Rated current: 63 A, rated voltage: 400 V AC, 3-pole + N configuration
• Monitors over/undervoltage, over/underfrequency, phase sequence, and islanding
• Integrated contactor for automatic disconnection
• 2 NO + 2 NC auxiliary contacts for status signaling
• Compact 6 TE (105 mm) modular width, DIN rail mounting

In daily use

Installed between the generator and the public grid, the NAS63-CI-1 continuously checks grid parameters. If any value falls outside the permitted range, the internal contactor opens within the required time, isolating the generator. The auxiliary contacts allow remote monitoring of the switch state. Screw terminals provide a secure connection for conductors up to the rated cross-section.

Full specifications

• Product type: Grid connection protection combination (NA-Schutzkombination)
• Rated current (In): 63 A
• Rated voltage (Un): 400 V AC
• Number of poles: 3P+N
• Frequency: 50/60 Hz
• Protection standard: VDE-AR-N 4105
• Monitoring functions: Over/undervoltage, over/underfrequency, phase sequence, islanding detection
• Disconnection device: Integrated contactor
• Auxiliary contacts: 2 NO + 2 NC
• Mounting type: DIN rail
• Degree of protection: IP20
• Operating temperature range: -25 to +55 °C
• Connection type: Screw terminals
• Modular width: 6 TE (105 mm)
• Application: Photovoltaic systems, CHP plants, distributed generation

Final note

The NAS63-CI-1 simplifies grid connection compliance by combining protection and switching in one device, reducing wiring and panel space.