Siemens NR424 - Fusible Safety Switch 200A@240V (100kA AIC, NEMA 3R)

Siemens NR424 is a Vacu-Break fusible safety switch designed for industrial power distribution systems requiring high interrupting capacity. The unit features a 240V AC voltage rating with 200A current handling capacity and 100kA AIC rating at 240V for reliable short-circuit protection. Constructed with a rugged NEMA 3R enclosure, this 3-pole single-configuration switch weighs 20 lb and complies with industry standards for fusible disconnects. It is engineered for use in commercial and industrial applications where robust circuit protection is required, compatible with PJP frames for seamless integration into existing systems.

Key Features & Specifications

• Type: Fusible safety disconnect switch, Vacu-Break technology
• Voltage Rating: 240V AC
• Current Rating: 200A
• Dimensions: NEMA 3R enclosure
• Standards: Industrial safety compliance
• Applications: Industrial power distribution, motor control
• Switch Type: Fusible
• Configuration: Single
• Poles: 3
• AIC rating: 100kA@240V
• Phase: 3
• Fuse Class: R
• Compatible Frames: PJP
• Weight: 20 lb