Square D H221N Non-Fusible Disconnect Type 1 Enclosure

The Square D H221N is a 30-amp, 240-volt safety disconnect switch designed for indoor use in a Type 1 (NEMA 1) enclosure. This two-pole, three-wire disconnect provides a formal means to isolate power for circuits up to 30 A at 240 VAC and includes a neutral connection for compatible loads. Built for indoor general-purpose applications, the H221N is intended for residential and light commercial electrical distributions where a dedicated disconnect is required before branch circuits or equipment feeders. The unit features a two-pole, three-wire configuration with a neutral and 240 VAC operation, aligning with common indoor 240 V circuit requirements. With its Type 1 enclosure, the H221N supports basic protection against dust and incidental contact in indoor settings while enabling safe maintenance and service procedures. Installers use it as a local disconnect point in electrical service runs and before downstream protective devices, ensuring safe energy isolation during servicing.