ST21290PG 200A 3P 240V Safety Switch, NEMA 3R, Fusible | AmpState

Meet the ST21290PG, a 200 A, 3-pole, 240 V safety switch designed for reliable equipment disconnect and isolation at the point of use. With a NEMA 3R enclosure, this fusible switch is built to stand up to outdoor and damp environments, making it a practical choice for facilities that demand durable, ready-to-install protection.

• Current rating: 200 A
• Poles: 3
• Voltage: 240 V
• Enclosure rating: NEMA 3R
• Protection type: Fusible (fuses required for circuit protection)
• Part number: ST21290PG
• Brand: Not Specified; available from AmpState

This safety switch is a smart pick for maintenance teams, panel builders, and facilities that prioritize exact part-number matching for quick, dependable replacements. Its fusible design offers precise protection and straightforward fuse replacement, helping you control fault currents without sacrificing downtime.

Why it matters: When you need a robust, point-of-use disconnect for large equipment—especially outdoors or in harsh environments—the ST21290PG delivers. The combination of 200 A capacity, 3-pole configuration, and 240 V operation with a weather-ready NEMA 3R enclosure provides dependable isolation, safer maintenance, and streamlined emergency response.

• Ideal use cases: disconnecting large motors or outdoor HVAC units, isolating machinery during maintenance, and providing a reliable spare with a direct part-number match for quick field replacements.
• What sets it apart: dedicated fusible protection in a rugged NEMA 3R package designed specifically for point-of-use disconnection, not just a generic switch.
• Practical tips: pair with the appropriate fuse rating for your circuit, follow proper lockout/tagout procedures, and verify compatibility with your panel or motor control setup. If you’re unsure about fit, AmpState offers guidance to confirm compatibility.

Ready to shop with confidence? AmpState carries the ST21290PG, and you can reach out for compatibility assistance to ensure a precise match for your equipment and enclosure. This safety switch is a dependable, purpose-built solution when reliability and correct part-number matching matter most.