Eaton FA4H12 - Medium-Voltage Fuse Switch 12kV/200A (NX Frame, 3-Pole)

Eaton FA4H12 is a high-voltage fuse switch designed for circuit protection in industrial power distribution systems. It features a 12kV voltage rating and 200A current capacity, housed in a durable 4 lb polymer enclosure with copper alloy contacts for reliable operation. The switch complies with IEEE C37.41 standards for medium-voltage equipment and carries UL certification. Typical applications include transformer protection, capacitor bank switching, and feeder circuit isolation in utility and industrial power networks.

Key Features & Specifications

• Type: FA series medium-voltage fuse switch with polymer housing and quick-make/quick-break mechanism
• Voltage Rating: 12kV AC
• Current Rating: 200A continuous
• Dimensions: 12.5" x 8.2" x 6.3" (318mm x 208mm x 160mm)
• Standards: IEEE C37.41, UL 248-12
• Applications: Transformer protection, capacitor switching, feeder isolation
• Switch Type: Loadbreak
• Configuration: 3-pole gang-operated
• Temp Rating: -40°C to +65°C
• Phase: 3-phase
• AIC Rating: 25kA symmetrical
• Connection: Top/bottom bushing
• Poles: 3
• Protection: Current-limiting fuse compatible
• Frame Size: NX
• Mounting: Vertical/horizontal panel mount
• Enclosure: NEMA 3R rated
• Wire Size: #6 AWG to 500 kcmil
• Certification: UL, CSA

Product Identification

• UPC: 05171250073
• GTIN: 00051712500739