Hubbell 12K - 30A, 600V, 3-Pole, Fused Disconnect Switch

The Hubbell 12K is a high-performance Fused Disconnect Switch engineered for industrial and commercial environments where safe electrical isolation is non-negotiable. This 3-pole device blends fuse-protected protection with dependable disconnection, delivering reliable performance under load and standing up to the rigors of demanding facilities. Its design prioritizes safe lockout/tagout (LOTO) procedures, giving maintenance teams a clear, hands-on method to prevent accidental energization during service. Built for long-term durability, the 12K is ready to perform year after year in challenging electrical landscapes.

Key advantages

• Three-pole isolation: Ensures complete disconnection of all three phases, reducing arcing risk and simplifying safe maintenance on 3‑phase equipment.
• Integrated fuse protection: Fuses provide overcurrent interruption in addition to the mechanical switch, enhancing fault clearance and overall system safety during operation and servicing.
• LOTO-ready design: Supports proper lockout/tagout procedures, helping crews lock out energy sources and tag equipment during maintenance to prevent unintended energization.
• Durable, mission-ready construction: Built to endure demanding industrial environments, prioritizing long-term reliability and consistent performance.
• Clear electrical ratings: Qualified for 30A at up to 600V, making it suitable for a wide range of motors, pumps, and control circuits.

Technical snapshot

• Amperage rating: 30A
• Voltage rating: 600V
• Number of poles: 3-Pole
• Product type: Fused Disconnect Switch
• Brand: Hubbell
• Model: 12K

Ideal uses and scenarios

• Isolating three-phase motors, pumps, conveyors, and other heavy machinery for safe maintenance and servicing.
• Service disconnects for commercial equipment run on 600V systems, where reliable fault interruption and quick isolation matter.
• HVAC and process equipment control panels requiring a fuse-protected disconnect to minimize downtime and maximize safety.
• Enclosures and electrical rooms where a compact, dependable fused disconnect is preferred over standalone breakers.

Why choose the Hubbell 12K

Unlike generic disconnects, the Hubbell 12K delivers a cohesive solution that pairs fuse protection with a robust disconnect action, tailored for environments where safety, reliability, and clear maintenance procedures are essential. Its 3-pole configuration ensures full-phase isolation, while its compatibility with lockout/tagout practices makes routine servicing safer and more efficient. If you need a trusted, purpose-built fused disconnect switch that can handle frequent on/off cycles and fault conditions in demanding applications, the 12K is purpose-built to perform.

Ready to implement safe, reliable electrical isolation in your 600V, 3-phase system? The Hubbell 12K 30A 3-Pole Fused Disconnect Switch brings together rigorous protection, ease of maintenance, and durable performance—so your equipment can run with confidence and your team can work with peace of mind.