Cutler Hammer QA-4033-CBC - Fusible Disconnect Switch 4000A@480V (200kA AIC)
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Cutler Hammer QA-4033-CBC is a bolted pressure switch designed for high-current industrial power distribution systems, featuring a fusible disconnect mechanism for circuit protection. It operates at 480V AC with a 4000A current rating and 200kA interrupting capacity, housed in a rugged NEMA 3R-rated enclosure weighing 150 lb for outdoor durability. The switch complies with industry standards for bolted pressure devices, utilizing Class L fuses in a 3-pole single-configuration design. Typical applications include main service entrances, motor control centers, and heavy industrial power switching where reliable fault isolation is critical.
Key Features & Specifications
Key Features & Specifications
- Type: Fusible bolted pressure switch (Pringle family, QA series)
- Voltage Rating: 480V AC
- Current Rating: 4000A
- AIC Rating: 200kA @ 480V
- Configuration: Single
- Poles: 3
- Phase: 3
- Fuse Class: L
- NEMA Rating: 3R (weather-resistant)
- Weight: 150 lb
- Standards: Industrial bolted pressure switch compliance
- Applications: Main disconnects, MCCs, heavy industrial power distribution
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