This item is a Schaffner 1200VDC 1KA Chassis Mount Line Power Line Filter.  Its part number is FN2200B-1000-99.

This item comes as pictured and does not include any additional parts or accessories.

Specifications:

• Manufacturer: Schaffner
• Part Number: FN2200B-1000-99
• Product: Power Line Filter
• Configuration: Single Stage
• Voltage: 1200V
• Current: 1 kA
• Applications: Photovoltaic Inverter
• Mounting Type: Chassis Mount
• Termination Style: Terminal Post