Square D QMB-KA-3T - Circuit Breaker 200A 600V (3-Pole 18kA AIC)

Square D QMB-KA-3T is a panel-mounted circuit breaker designed for industrial power distribution systems requiring robust short-circuit protection. This 600V-rated, 200A capacity breaker features a 3-pole dual/twin configuration with an 18kA interrupting rating at 480V, housed in a NEMA 1 enclosure for basic indoor protection. Constructed for compatibility with KAP breaker frames, it meets industrial standards for three-phase power applications. The 35 lb unit is engineered for reliable operation in commercial and industrial electrical panels, motor control centers, and power distribution networks.

Key Features & Specifications

• Type: QMB Series E1-E2 panel-mounted circuit breaker
• Voltage Rating: 600V AC
• Current Rating: 200A
• Configuration: Dual/Twin
• Poles: 3
• Phase: 3
• AIC Rating: 18kA@480V
• Breaker Type: KAP
• Compatible Frames: KAP
• NEMA Rating: 1
• Switch Style: Breaker Type
• Weight: 35 lb
• Standards: Industrial electrical compliance
• Applications: Power distribution, motor control centers, industrial panels