Cutler-Hammer DH363URK - 100A, 600V, 3-Pole, Non-Fusible Disconnect Switch

The Cutler-Hammer DH363URK is a robust 3-pole non-fusible disconnect switch designed for safe, reliable electrical isolation in demanding industrial and commercial environments. With a 100 A rating at 600 V, this disconnect switch delivers dependable disconnection under load while supporting proper lockout/tagout procedures for safer maintenance and service operations.

• Amperage rating: 100 A
• Voltage rating: 600 V
• Poles: 3-Pole
• Enclosure: NEMA 3R (outdoor-ready protection for rugged environments)
• Type: Non-Fusible Disconnect Switch
• Brand: Cutler-Hammer
• Model: DH363URK

Why this disconnect switch stands out

Unlike fusible alternatives, the DH363URK provides straightforward, fuse-free power isolation, simplifying maintenance and reducing downtime during routine shutdowns. Its three-pole design ensures all conductors are simultaneously disconnected, enhancing safety for technicians performing service or repair work. The NEMA 3R enclosure expands where you can safely install this switch, offering reliable performance in outdoor or harsh indoor environments subject to weather, dust, or incidental moisture.

Ideal use cases

• Motor control and service disconnects in manufacturing lines, warehouses, and processing facilities
• Outdoor or semi-outdoor electrical isolations for HVAC, pumps, conveyors, and other equipment
• Zone or equipment isolation during maintenance, repair, or emergency shutdowns with lockout/tagout compliance
• Power distribution points where a dependable, non-fusible disconnect is preferred for quick, safe de-energization

Practical guidance for getting the most out of the DH363URK

To maximize safety and reliability, pair this disconnect with proper lockout/tagout procedures and clearly labeled control points. Its 3-pole configuration is ideal for isolating all live conductors in a single operation, reducing the risk of residual energization. In environments exposed to the elements, the NEMA 3R-rated enclosure delivers durable protection, helping maintain performance and extending service life even with frequent outdoor use.

Compared to alternatives, why choose the DH363URK

For facilities prioritizing straightforward maintenance and quick, safe isolation, a non-fusible disconnect like the DH363URK minimizes replacement steps and parts since there are no fuses to manage during routine shutdowns. The combination of 100 A capacity, 600 V rating, 3-pole configuration, and weather-rated enclosure makes it a practical, long-term solution for reliable power control across a wide range of industrial and commercial applications.